CCW Ammo for G29 w/KKM Compensator Barrel

[BillR]

Underwood is having a sale and its time I stock up on some good 10mm for my G29 that has a KKM ported barrel.  This gun rides with me in the car and I carry it most of the time.  I currently use Hornady critical duty but I want to go with something a little hotter.  Anyone have a favorite Underwood load?  I have never had any of their ammo before.  I was thinking the 180 gr XTP Jacketed HP.  Thanks

[The_Shadow]

What recoil rod and spring weight are you running?
The Underwood is a higher impulse and will increase the slide speeds, this can lead to FTF's unless controlled

[BillR]

Sorry I'm new to Glock, I have no idea, whatever came stock from the factory.  I've been using the critical duty with the stock Glock barrel up to this point.  I just bought the KKM barrel and it also has no problem with the CD.  I really don't see much difference between 10mm CD and .40's thru my P226 which is why I want something a little faster.  If I go to a hotter load what rod & spring should I get?  Thanks again.

[The_Shadow]

That depends on which G-29 you have, those before the gen 4 can use a host of recoil systems.  I have a pre SF model and use the Wolff Gun Springs two piece "non captive" recoil rod with their 21lb spring set.  I also have 19lb and 23lb set of springs that I can use for testing of other ammo.  However the 21lb spring set has worked with the 10mm mild to wild and the 40S&W,357Sig and 9x25Dillon conversion barrels.

The newer gen4's look to the Lone Wolf recoil system which is new to the market.

[4949shooter]

Here is the custom G29 spring from Glockstore. You can choose the spring weight you want from 15 to 23 pounds/

http://www.glockstore.com/custom-parts-amp-accessories/tungsten-competition-recoil-spring-for-glocks-w-dual-spring-2

That was the tungsten RSA. Here is the stainless version:

http://www.glockstore.com/custom-parts-amp-accessories/stainless-steel-competition-recoil-spring-for-glocks-w-dual-spring-1

[BillR]

Thanks again guys.
And again pardon my ignorance of Glocks.  It's a G29SF it doesn't have the removable back straps and doesn't have a double spring, does this make it a Gen 3?  I'll order the 21 lb and give it a try.  I bought this used, but like new, less than 100 rounds thru it.  It has, all installed by previous owners gunsmith, the 3.5 Ghost Ultimate, extended slide stop and lock, polished trigger parts, and Trijicon night sights.  Anything else that you guys would advise that I should get for it?  I've always been a revolver guy except for a few Sigs.  Any Underwood advise would be appreciated also, I want to get a couple hundred rounds of one kind to carry and practice with. 

Happy Thanksgiving, getting ready to hit the road.

[4949shooter]

It is a Gen 3, but with the G29 and G30 (.45 aCP) the springs are the same for Gen 3 and 4.

Underwood....everything they have is good stuff.

[ninja]

...a favorite Underwood load?...  I was thinking the 180 gr XTP Jacketed HP...

That's a good start.  My stock gen 4 likes them best.  Just ordered the captive 21# springset 4949 suggested that might tame the heavier loads better...

[Dave84]

155 grain XTPs are quite stout.

[BillR]

Thanks all
I ended up ordering the tungsten guide rod and 21 lb spring from the Glock Store.  I also ordered 550 rounds of the Underwood 180 gr JHP for carry and practice, plus one box of each of the 135gr, 165gr, and 200gr to try out.

[Centimeter]

155 grain XTPs are quite stout.

I second that. Underwood definitely makes them pack quite a punch. I have no apprehension about them for my personal defense in my 20, even through heavy clothing and so forth; I expect they perform almost just as well out of the 29.

[BillR]

What a disaster, stopped by the range on the way home yesterday to shoot the G29 with the KKM barrel and new tungsten guide rod and 21 lb spring.  I wasn't prepared, I didn't have my original barrel and spring with me.  Literally 3 out of 4 rounds failed to feed, the rounds were not even close to chambering.  I tried shooting Hornady critical duty, Underwood 180gr and Underwood 200 gr and I used 4 different mags.  They were all JHP's, could these be the problem?  I need to go back with my original barrel and spring and see if I can sort this out.  Any ideas what the problem could be?

Thanks all
I ended up ordering the tungsten guide rod and 21 lb spring from the Glock Store.  I also ordered 550 rounds of the Underwood 180 gr JHP for carry and practice, plus one box of each of the 135gr, 165gr, and 200gr to try out.

[The_Shadow]

BillR you wrote

Thanks again guys.
And again pardon my ignorance of Glocks.  It's a G29SF it doesn't have the removable back straps and doesn't have a double spring, does this make it a Gen 3?  I'll order the 21 lb and give it a try.  I bought this used, but like new, less than 100 rounds thru it.  It has, all installed by previous owners gunsmith, the 3.5 Ghost Ultimate, extended slide stop and lock, polished trigger parts, and Trijicon night sights.  Anything else that you guys would advise that I should get for it?  I've always been a revolver guy except for a few Sigs.  Any Underwood advise would be appreciated also, I want to get a couple hundred rounds of one kind to carry and practice with.

I highlighted this in your statement doesn't have a double spring

The Glock 29's all came from the factory with a captured dual recoil rod spring setup.  Do you have the original Factory RSA?  This is what they look like...

Have you tested the factory setup?  Did you encounter issues?  If so what issues?

It also seems that many items were non stock, not necessarily a bad thing.
You say that the rounds were not even close to chambering...if you pulled back on the slide slightly and let it go would they chamber?  You also mention you are using

new tungsten guide rod and 21 lb spring

This seems like a single spring RSA.  Try to take note if the recoil spring is binding up and causing a short stroke issue.  Look for full slide travel to the rear.  You may need some dummy rounds to hand cycle, testing the pick up and feeding of the rounds as you study the issue.  Did the previous owner experience issues?

The KKM chambers are usually tighter than the Factory barrel chamber.
You may want to test the rounds using the factory recoil system using the KKM barrel to see if it will function properly.

I have not had any issues with my G-29SF chambering in the Factory or Storm Lake aftermarket barrel using the factory RSA or Wolff RSA.  What made me change to the Wolff non captive RSA, with the 21 lb spring set, was the factory spring and guide rod allowed the larger spring to slip past the capture button. (Glock did send me a new one)  However, I like the Wolff non captive setup, because I test many types of ammo and have aftermarket barrels for 10mm, 40S&W, 357Sig and 9x25Dillon.  Although all of these cartridges will chamber and function using the 21lb spring set, as mentioned I have a 19lb and 23lb set to work with also.

[BillR]

It did come with the dual recoil spring, I was mistaken.  It shot fine before I added the new spring and barrel but I was using really tame loads, PPU, Georgia Arms, even the Hornady CD are pretty tame.  I didn't try the factory spring or barrel with the Underwood ammo because I didn't have it with me.  It would chamber a round every time by just cycling the action by hand.
Thanks


This is what I bought, having problems with.


This is factory.

[captaintrips]

I don't know nearly as much as others on this board....but I will say I have a bone stock gen3 29sf that has seen a lot of Underwood with no problems whatsoever.   Personally don't see the need for a bunch of aftermarket parts.