10mm-Auto

Firearms => 10mm semi-auto handguns => Topic started by: Kenk on July 09 2018 09:36:50 AM MDT

Title: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 09 2018 09:36:50 AM MDT
Any thoughts on the GRAND POWER P40 10mm?, likes, dislikes, or other
Thanks

Ken
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Graybeard on July 09 2018 11:35:04 AM MDT
Don't own one, but after researching them, decided to pass for awhile. The mag drop issue was the killer for me. I'm interested what the members who own them have to say, as well. Now that they've been around for a couple of years.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 09 2018 01:25:17 PM MDT
Thanks Graybeard!
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Graybeard on July 09 2018 04:05:11 PM MDT
Can't quite figure out why the best price I can find for a P40 in 10mm is $650 and it's $830 for a P40L. It's only 3/4" longer. $830 seems a little high for today's market for a polymer gun. That's Glock 40 money, plus new sights. Or, Tanfoglio P Match plus 8 magazines money. 

I would love to have the opportunity to shoot one. Haven't seen one in a store or at a range.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 09 2018 04:58:01 PM MDT
Yep, have some fascination with them, but for the price, the G40 is looking pretty good : )
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Univibe on July 09 2018 09:57:40 PM MDT
I didn't know this gun existed.   I just looked at photos of it.   

It looks exactly like what you'd expect Darth Vader's CHL gun to look like.   
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on July 10 2018 04:15:18 AM MDT
I have one, it is probably my favorite 10mm and gets carried in cooler weather.  Extremely accurate, less recoil than a typical Browning design and with that comes brass much closer and almost in a pile. Overall I am extremely happy with this gun. On the down side it did take a while for them to get the mag drop issue fixed, but it is fixed, ancient history almost now. Night sites have been problematic to get, they have (or had, I'm not really sure) the rear FO Tritium sight but did not have the front one. I found that the front sight from another pistol was almost a perfect match and that pretty much solved that. I am referring to the importer when I say "they have", as the factory has them available in Europe. I imagine it is an import restriction of some sort. I have close to 10K rounds through mine now, all reloads and all functioned well. Over all I would give it an 8/10. I'm happy to answer any questions about the GP 40.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 10 2018 05:10:59 AM MDT
Thanks PC, my interest has been rekindled : )
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Ten2six on July 10 2018 05:26:20 AM MDT
My experience is much like PCFlorida's except I haven't got to put that many rounds through mine.  I too really like this handgun.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Graybeard on July 10 2018 06:27:50 AM MDT
How's the trigger on these guns? Similar to anything else you own or have fired?
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on July 10 2018 07:03:46 AM MDT
Ah, the trigger. To begin with the P40 is not striker fired. It is a DA/SA pistol. It has a relatively smooth DA pull right to the end when it stacks and then fires. SA is smooth with (I'm guessing as I don't have a trigger pull scale handy) a 3 to 4 pound short pull. Definitely not a Glock :) If I had to compare it anything it would likely be my Beretta 92, but is actually a little better. I can't compare it to my Sig 220, they are just different from each other.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Azrckcrawler on July 10 2018 09:15:03 AM MDT
Quote from: PCFlorida on July 10 2018 04:15:18 AM MDT
I have one, it is probably my favorite 10mm and gets carried in cooler weather.  Extremely accurate, less recoil than a typical Browning design and with that comes brass much closer and almost in a pile. Overall I am extremely happy with this gun. On the down side it did take a while for them to get the mag drop issue fixed, but it is fixed, ancient history almost now. Night sites have been problematic to get, they have (or had, I'm not really sure) the rear FO Tritium sight but did not have the front one. I found that the front sight from another pistol was almost a perfect match and that pretty much solved that. I am referring to the importer when I say "they have", as the factory has them available in Europe. I imagine it is an import restriction of some sort. I have close to 10K rounds through mine now, all reloads and all functioned well. Over all I would give it an 8/10. I'm happy to answer any questions about the GP 40.

Which repair location fixed your mag drop issue? I need to send mine in to get that fixed as well as have something done with the roll pin in the grip.  Mine works it's way out enough to dig into your hand after a few dry fires.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on July 10 2018 09:33:35 AM MDT
That would be:

Colorado Gun Works L.L.C. / American Arsenal & Armory
110 North Wine Street, Lyons, IN 47443
Tel: 812-659-4867;
email: gunsmith@coloradogunworks.com, Info@coloradogunworks.com
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 10 2018 11:57:13 AM MDT
So the mag drop issue is from the past, correct? And not an issue now?
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on July 10 2018 12:02:17 PM MDT
I only had the issue with smokin loads. I do not have it at all since I sent it back. Not once.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Graybeard on July 10 2018 12:05:21 PM MDT
Quote from: PCFlorida on July 10 2018 07:03:46 AM MDT
Ah, the trigger. To begin with the P40 is not striker fired. It is a DA/SA pistol. It has a relatively smooth DA pull right to the end when it stacks and then fires. SA is smooth with (I'm guessing as I don't have a trigger pull scale handy) a 3 to 4 pound short pull. Definitely not a Glock :) If I had to compare it anything it would likely be my Beretta 92, but is actually a little better. I can't compare it to my Sig 220, they are just different from each other.

Thanks, that's good info. I've shot several Beretta 92s and found their triggers to be pretty manageable. If the P40's is actually better, that's pretty good for out of the box. Now I'm stuck between wanting a P40L and a P Match Pro :-\
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on July 10 2018 12:35:55 PM MDT
There is always the 'both' option  ;D
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Azrckcrawler on July 10 2018 01:47:52 PM MDT
Quote from: Kenk on July 10 2018 11:57:13 AM MDT
So the mag drop issue is from the past, correct? And not an issue now?

I bought mine in the second wave of guns a year ago and it had the same mag drop issue as the first batch. Never sent it in because the importer doesn't cover shipping even with warranty issues. Sucks having to spend another $70 in shipping to get a new gun "fixed".  My fix was to shim the magwell and increase the tension on the mag release spring via a spacer. 

Not sure how to tell if the gun has the mag drop fix.  To date I have not seen anyone post a picture of the mag release mechanism after the fix. From what I can gather, some part in that mechanism gets swapped out. I am guessing it crowds the magazine a bit. You can't just engage the notch more since that would interfere with the follower when it passes the release window. The center cut mag release cutout is this gun design's achilles heal. 10mm makes the issue more pronounced. The centered cutout works (for the most part) with the 9mm guns, although I have seen mentions of mag drops on other comp forums. I own an X-cal in 9mm and it has never dropped mags but I also don't run high PF loads thru it. FWIW that gun is crazy accurate.

Anyone here want to post a picture of your fixed mag release mechanism?  Should be able to see what is fixed with the slide off and good lighting.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on July 10 2018 05:49:03 PM MDT
I have some before pictures, but never took any after pictures come to think of it. Let me see if I can find time in the next couple of weeks.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 10 2018 06:28:47 PM MDT
Thanks guys!
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 11 2018 06:39:02 AM MDT
Emailed EAGLE IMPORTS to see if the mag drop issue has been addressed, as well as how I can be sure the one I buy is good
Thanks

Ken
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on July 11 2018 07:52:26 AM MDT
Quote from: Kenk on July 11 2018 06:39:02 AM MDT
Emailed EAGLE IMPORTS to see if the mag drop issue has been addressed, as well as how I can be sure the one I buy is good
Thanks

Ken

They will usually reply within 1 to 2 days, depending on if they have to wait for an answer for something they don't know.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 11 2018 07:55:29 AM MDT
Thanks PC!
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 11 2018 09:01:13 AM MDT
Just in from EAGLE IMPORTS

Hello,

Thank you for contacting us. We had not received many complaints concerning the magazine catch of the P40 firearms, and nothing recently. If a Grand Power is purchased and you are the first owner of the gun, then the gun can be repaired by any of our warranty centers and returned at no charge.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: buck on July 11 2018 02:52:13 PM MDT
I do not have a Grand Power in 10mm. But I contacted them directly a few months back and they replied that the problem had been fixed but if I was to get one and had that issue there policy was to send the gun owner the replacement part that was needed as well as the simple instructions on how to change it.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 11 2018 04:08:17 PM MDT
Nice, so either way, I guess I'll have to pick one up : )
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 12 2018 04:06:44 AM MDT
It's interesting that EAGLE IMPORTS won't admit there was a magazine drop issue. Seems like a good response would have been, yes, this was a problem in early versions, but has now been corrected
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Graybeard on July 12 2018 06:32:41 AM MDT
Quote from: Kenk on July 12 2018 04:06:44 AM MDT
It's interesting that EAGLE IMPORTS won't admit there was a magazine drop issue. Seems like a good response would have been, yes, this was a problem in early versions, but has now been corrected

Seems just a little shady. Especially since they won't pay for the shipping to return it for service.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 12 2018 07:40:14 AM MDT
Lol, kind of does
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Azrckcrawler on July 13 2018 07:56:04 AM MDT
I have the part that will fix the mag drop issue inbound. Will post a picture when it arrives. My prediction is it is a replacement mag catch that engages the notch but also pushes on the front face of the magazine.

Edit -

Invoice shows a #GP37-P40 magazine stop pin, #GP31-P40 magazine release spring and #GP20-P40 magazine catch.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 13 2018 11:12:04 AM MDT
Thanks!
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: buck on July 13 2018 12:40:25 PM MDT
Quote from: Kenk on July 12 2018 04:06:44 AM MDT
It's interesting that EAGLE IMPORTS won't admit there was a magazine drop issue. Seems like a good response would have been, yes, this was a problem in early versions, but has now been corrected
Grand Power has admitted on their Facebook page that there was an issue but it had been solved.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Azrckcrawler on July 13 2018 01:52:55 PM MDT
Quote from: buck on July 13 2018 12:40:25 PM MDT
Quote from: Kenk on July 12 2018 04:06:44 AM MDT
It's interesting that EAGLE IMPORTS won't admit there was a magazine drop issue. Seems like a good response would have been, yes, this was a problem in early versions, but has now been corrected
Grand Power has admitted on their Facebook page that there was an issue but it had been solved.

All I could find on Facebook was this quote -

QuoteGrand Power USA - Eagle Imports Jesse Adkins what bugs? the magazine catch on the first 50 that came into the USA? Yes, that has been fixed and we only had to send parts out to fix about 20 of them.

Pretty sure mine came in the second batch, bought nearly a year after they first popped up on Gunbroker. Not totally surprised the issue doesn't appear widespread considering the selection of 10mm ammo out there available to non-reloaders.  Most guys aren't going to shoot a lot of high power factor stuff when it runs them $2 a round.  Mine occasionally knocked the mag loose with SIG FMJ. At first I thought it was me hitting the mag release button.  It wasn't till I moved up to 200 gr loads that it started throwing the the mag to the ground. 

Regardless, I for one am actually excited to get this fix in.  The gun does shoot nice when you can keep the mag in it. Recoil doesn't feel as sharp as my 1911's despite the P40 being lighter.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 13 2018 04:11:06 PM MDT
Nice, hope to be getting one soon
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: gandog56 on July 17 2018 01:51:50 PM MDT
Quote from: buck on July 11 2018 02:52:13 PM MDT
I do not have a Grand Power in 10mm. But I contacted them directly a few months back and they replied that the problem had been fixed but if I was to get one and had that issue there policy was to send the gun owner the replacement part that was needed as well as the simple instructions on how to change it.
Somebody told me that when something was wrong with my TNC Aero 10mm carbine trigger . (It wasn't resetting properly) I specifically asked him do you have to be like an engineer to replace all the parts? (Which they DID send me free) He said no, no, and gave me a link to a video which showed me how to do it. I took one look at that video, and said "Say what"? No WAY! I needed tools I didn't have and techniques I had no idea how to do. My gunsmith got the job! (And, those parts DID fix the problem thank goodness)
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Da/Sa Fan on July 18 2018 10:25:08 AM MDT
I hate plastic guns. I hate de-cocker pistols. I hate ambi controls............I LOVE THIS GUN! I didn't want to buy this gun after all the nonsense that went on before the thing was even on the market. I was so ticked that there was no way I was going to get one. I'm sorry but 10mms are kinda' like potato chips. It's not a gun I would have even considered if it weren't a 10 but I got it and I'm glad I did.

I like the way the de-cocker works. I carry it condition 1. I can also put the lever down and easily practice double action only.
The controls are so thin and unobtrusive that the ambi is actually now a good thing in my mind.That crazy angular looking grip on the plastic gun actually fits the hand beautifully.

I've been shooting Underwood practice ammo and 180 and 200 grain hollow points. Runs like a champ. I just spent around 80 bucks for an IWB holster (unheard of amount for me!) Every time I leave the house with pants and a belt, it's on me.

Only criticism I have is the field strip and that's a breeze once I got the hang of it.
If you like 10mm you will like this gun.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 18 2018 10:49:32 AM MDT
Thanks Da/Sa Fan
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on July 21 2018 03:59:09 PM MDT
So I got around to stripping my GP 40 today. As near as I can tell it must be a stronger spring as I can not see any other difference. Unfortunately I did not take a before picture without an empty magazine in the gun, if anyone has one that has not had the gun fixed for the mag drop please post a picture. Here are before and after pictures with a magazine body in the gun.

Before
(https://i.imgur.com/sDXLiem.jpg)

After

(https://i.imgur.com/wbquilY.jpg)
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 21 2018 05:38:47 PM MDT
Thanks PC
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on July 21 2018 06:30:36 PM MDT
I could shrink the pictures but I thought you might want the detail.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on July 21 2018 08:15:59 PM MDT
Nope, I like it, Thanks man
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: mt10mm on August 03 2018 05:27:26 PM MDT
I just picked up a P40 and have to say it is a nice 10mm option. I have carried a Glock for many yrs BUT.. I may change my mind.. I only have 2 mags fired but I had 0 issues with DT 200gr HC. So far the only bad thing I can say about it is the take down and reassembled procedure, what a pain in the ass.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on August 04 2018 05:09:59 AM MDT
Quote from: mt10mm on August 03 2018 05:27:26 PM MDT
I just picked up a P40 and have to say it is a nice 10mm option. I have carried a Glock for many yrs BUT.. I may change my mind.. I only have 2 mags fired but I had 0 issues with DT 200gr HC. So far the only bad thing I can say about it is the take down and reassembled procedure, what a pain in the ass.

Lol, it is a pain in the ass until you get used to it. I can't tell you how many times I tried to put the slide back on the same as a Glock/Smith/Colt and so on. Now it is no issue, just had to retrain my brain and hands.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Da/Sa Fan on September 01 2018 10:15:32 AM MDT
I have come up with another minus for the Grand Power. Extra mags are like hen's teeth. I'm on notification lists from a bunch of mag sellers and haven't had any luck so far. I need more mags!
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on September 01 2018 11:53:01 AM MDT
Good thing to know
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on September 02 2018 03:19:31 AM MDT
Quote from: Da/Sa Fan on September 01 2018 10:15:32 AM MDT
I have come up with another minus for the Grand Power. Extra mags are like hen's teeth. I'm on notification lists from a bunch of mag sellers and haven't had any luck so far. I need more mags!
All you have to do is buy full size Witness magazines and drill the hole in the front for the magazine catch. One small hole is the only difference. And they are half the price. I think I bought some from J&G.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on September 02 2018 07:39:25 AM MDT
Thanks, that works for me!
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on September 02 2018 11:02:42 AM MDT
Quote from: Kenk on September 02 2018 07:39:25 AM MDT
Thanks, that works for me!

P/N and such

[attachment deleted by admin]
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on September 02 2018 11:42:11 AM MDT
Thanks PC!
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on September 03 2018 10:00:36 AM MDT
Quote from: Kenk on September 02 2018 11:42:11 AM MDT
Thanks PC!
My pleasure. I wouldn't be surprised if they bought them them at the factory and just drilled the hole.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Intercooler on September 22 2018 07:15:05 AM MDT
   How is everyone's GP pistols running and have any of you made changes to it?
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on September 22 2018 10:31:55 AM MDT
For sure PC, I could totally see them doing something like that : )
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on September 22 2018 01:29:06 PM MDT
Quote from: Intercooler on September 22 2018 07:15:05 AM MDT
   How is everyone's GP pistols running and have any of you made changes to it?

Runs great. I carry it in cooler weather daily. I have put night sights on it and love it. Had the mod done for the magazine drop and have not had a single issue since. Great, well designed gun. Definitely a fan. Somewhere near 10K rounds through it now.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Intercooler on September 23 2018 06:18:15 AM MDT
When I search YouTube I don't see any new videos good/bad. Someone needs to put one on!
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Intercooler on September 23 2018 06:23:01 AM MDT
   Has anyone other than myself put on the grip tape? It really made my K100 very nice in the hand and I bought a second kit for the Springfield XD!

http://tractiongrips.com/catalog/i213.html

Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on September 23 2018 09:24:35 AM MDT
I didn't see the need, but I may just to try it if shipping isn't too bad.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on September 23 2018 09:39:18 AM MDT
On sale for $8.99 and $2.79 for shipping. Ordered.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Intercooler on September 23 2018 10:01:49 AM MDT
Quote from: PCFlorida on September 23 2018 09:24:35 AM MDT
I didn't see the need, but I may just to try it if shipping isn't too bad.
Try Amazon! That's where I picked mine up.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Pale-Faced Bear on December 12 2018 04:36:20 PM MST
Hello,
I'm really enjoying the P40.

Has anyone tried a red dot on one of these yet?  I have a Burris Fastfire3 sitting in my garage that was free, wouldn't mind trying it on this pistol if I could find a mounting plate.  Is the rear sight dovetail a standard type or would it have to be custom piece?  Forgive my ignorance, I don't know anything about handgun sights.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: 10Tens on December 13 2018 10:48:55 AM MST
Mine is still 700.00 paperweight. Ughh.. Looking at XD now.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Bluefish on December 14 2018 04:48:08 AM MST
So I havent been on here in awhile, really wondering what makes these and the xdm better than my old g29 and g20?
   other than a lone wolf barrel on the 29 they are stock and they shoot when I pull the trigger,
I dont currently reload and I have not noticed any brass issues except one box of 165gr hp underwoods that I honestly believe were over stuffed.
     I am itching for another 10mm but when I look at my delta elite, limited pro, and my 2 glocks I have a hard time finding a "niche' that needs filling.
      At this point, those polymer match and match pro look as fun as anything.

     Russ
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: sqlbullet on December 14 2018 08:34:24 AM MST
The big difference in the Grand Power is the rotating barrel locking system.

The concept of rotating barrel locking was originally patented, i believe, by JMB himself in 1897.  However, early implementations were finicky and reliability depended on lots of good lubricant.  More recent designs that use this system include the Beretta Px4 Storm and the Boberg XR9.

GP Designer Jaroslav Kuracina has a fresh look at the concept and controls the barrel rotation with a large, wide cam surface in the barrel interfacing with the top of the slide stop pin.  Other designs have typically used some kind of pin or post running in a groove milled in the barrel.  The GP's larger engagement area spreads the friction out in a way that positively impacts reliability.

Rotating barrel designs typically take more energy and longer unlock time than a tilt link system, while at the same time traveling less distance to the rear.  This reduces felt recoil and allows the designer more room in the action, or a shorter action (See the Boberg).

Additionally, the GP40-10mm has a interesting take on the thumb safety that I think I like.  Up is safe and supports condition 1 carry.  Middle is off safe and traditional SA fire, or DA/SA if the hammer is down for the first shot.  De-cocking is possible by sweeping the safety lever down, and the lever can be left down making the gun operate DAO.  As far as I know this is the only gun that allows this DAO operation mode in conjunction with condition 2 and condition 1 carry.

Shooters of the P40-10mm suggest that felt recoil is more in line with a 9mm shooting +p ammo.

The Grand Power designs have been badged by STI in the past as the GP5 and GP6.  I am not sure what lead to STI moving away from Grand Power.

The Glock vs XD is an old debate, and IMHO there is no compelling reason for someone invested in the Glock eco-system to look to the XDm.  I have an XD in my safe in 9mm and it is a great gun.  But before he arrival of the XDM 10mm, like you, I have a Glock 20 SF and a Glock 29, along with 9X25 barrels for both of them, and 15-20 magazines, including 4 that are altered to use the KRISS mag extensions making them 33 round mags.  Fully loaded out I think I could shoot 300+ rounds from my G29 before I had to re-stuff a magazine.

If I were shopping today for a polymer full size striker fired handgun as my only 10mm gun, I would very likely end up with the 4.5" XDm.

The Grand Power is the gun I would be most inclined to take a chance on right now.  I have been shopping them on Gunbroker and trying to decide how to break the news to my SO.

Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Bluefish on December 23 2018 02:23:13 PM MST
Quote from: sqlbullet on December 14 2018 08:34:24 AM MST
The big difference in the Grand Power is the rotating barrel locking system.

The concept of rotating barrel locking was originally patented, i believe, by JMB himself in 1897.  However, early implementations were finicky and reliability depended on lots of good lubricant.  More recent designs that use this system include the Beretta Px4 Storm and the Boberg XR9.

GP Designer Jaroslav Kuracina has a fresh look at the concept and controls the barrel rotation with a large, wide cam surface in the barrel interfacing with the top of the slide stop pin.  Other designs have typically used some kind of pin or post running in a groove milled in the barrel.  The GP's larger engagement area spreads the friction out in a way that positively impacts reliability.

Rotating barrel designs typically take more energy and longer unlock time than a tilt link system, while at the same time traveling less distance to the rear.  This reduces felt recoil and allows the designer more room in the action, or a shorter action (See the Boberg).

Additionally, the GP40-10mm has a interesting take on the thumb safety that I think I like.  Up is safe and supports condition 1 carry.  Middle is off safe and traditional SA fire, or DA/SA if the hammer is down for the first shot.  De-cocking is possible by sweeping the safety lever down, and the lever can be left down making the gun operate DAO.  As far as I know this is the only gun that allows this DAO operation mode in conjunction with condition 2 and condition 1 carry.

Shooters of the P40-10mm suggest that felt recoil is more in line with a 9mm shooting +p ammo.

The Grand Power designs have been badged by STI in the past as the GP5 and GP6.  I am not sure what lead to STI moving away from Grand Power.

The Glock vs XD is an old debate, and IMHO there is no compelling reason for someone invested in the Glock eco-system to look to the XDm.  I have an XD in my safe in 9mm and it is a great gun.  But before he arrival of the XDM 10mm, like you, I have a Glock 20 SF and a Glock 29, along with 9X25 barrels for both of them, and 15-20 magazines, including 4 that are altered to use the KRISS mag extensions making them 33 round mags.  Fully loaded out I think I could shoot 300+ rounds from my G29 before I had to re-stuff a magazine.

If I were shopping today for a polymer full size striker fired handgun as my only 10mm gun, I would very likely end up with the 4.5" XDm.

The Grand Power is the gun I would be most inclined to take a chance on right now.  I have been shopping them on Gunbroker and trying to decide how to break the news to my SO.
Great post, packed with stuff I did not know. I will have to look into the grand power in the near future.

   Thanks, Russ











Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Keiichi on December 23 2018 02:40:16 PM MST
Bluefish, it sounds to me like you need a change of pace, rather than another 10mm pistol. How about a carbine?

There are actually a lot of options on the market, from the MechTech accessory to the RONI to the Kriss to the HiPoint to a myriad of AR-type rifles.

A 10mm carbine is a joy to shoot.

Food for thought.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Kenk on December 23 2018 05:18:14 PM MST
Yep, will be picking up a MechTech or HiPoint myself, really looking forward to a 10 Carbine 😀
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on December 29 2018 04:51:03 AM MST
Quote from: 10Tens on December 13 2018 10:48:55 AM MST
Mine is still 700.00 paperweight. Ughh.. Looking at XD now.
So why is yours still a $700 paperweight? Did you have the mag drop issue, or was it repaired and still happened, or...?
Thank you!
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: Zathras on January 17 2019 11:37:11 AM MST
New to forum (and to 10mm).  GP40 is my first foray into the 10mm world.

I do like my CZ DA/SAs, and wish they made a 10mm.  The GP40 looked like the closest thing I'd find to that, so I gave it a whirl.

I like mine - grip bite is a bit too aggressive, but I'm managing.  As others have said, the disassembly / reassembly takes some practice.  I've not had the mag drop issue, but I haven't tried anything over 180gr or any hot loads.  Bought mine in late Nov, so maybe I have the 'magwell fixed version'.  Mag release spring is very stiff.

I've only shot factory so far - maybe 150 rounds, with about 100 in FMJ (S&B and Magtech) and 4 different defensive loads.  I have some 200gr projectiles that I was going to handload.  Used to loading .40.  Now that I have some fired brass, I can give it a shot.

135gr Corbon (1400+ fps) is very fast and very loud.  It shot the most consistent (for me, of the 4 HP brands I tried), tested at 7 yards yesterday.  Large, clean holes.  Apart from the initial flyer that surprised me, it was good.  The Fed Hydrashock was pretty consistent as well, but a lot quieter and the brass mostly landed at my feet.  In any case, I have some more testing to do.

Anyone had the issue of the last round in the magazine failing to chamber reliably?  I've had this a couple times, and is currently the only issue I find disconcerting, to where I'd not trust it in a defensive situation yet.  I only have 2 mags, and it happened only 2 times yesterday, which is less often than the first range trip (mostly with Magtech FMJ).  It might be a breaking-in thing.

Holster is still up in the air - would appreciate recommendations.  If I did carry it, it'd likely be OWB camping/in bear country - not CC.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: 10Tens on January 27 2019 09:05:40 PM MST
Quote from: PCFlorida on December 29 2018 04:51:03 AM MST
Quote from: 10Tens on December 13 2018 10:48:55 AM MST
Mine is still 700.00 paperweight. Ughh.. Looking at XD now.
So why is yours still a $700 paperweight? Did you have the mag drop issue, or was it repaired and still happened, or...?
Thank you!


Yes. My P40 still drops mag now and then when firing hot loads. Been back twice for repair work. Could never trust it for a carry gun. Carry my tried and true S&W 1076.
Title: Re: likes / dislikes on the GRAND POWER P40 10MM
Post by: PCFlorida on January 28 2019 03:57:54 PM MST
Man, that is unfortunate. Have you contacted Eagle Arms for a replacement? Who did the warranty work?