What kind of velocity are you getting? Is faster speed obtainable by using a 6" aftermarket barrel in a G20? Any of you using 7" barrels, and if so what kind of velocity are you getting with that?
My 29SF is still my favorite gun. I've polished the barrel, the pins, the slide stop lever. I swapped the serrated trigger out for a G20 smooth trigger. I FINALLY got the plastic sights off of there. I replaced them with a set of Meprolights. I really wanted TFO's, but would you guys have passed up new Meprolights for $50 ? I'm running a Lonewolf 3.5# trigger, and she is a joy to shoot. The only piece I have left to get is a 19lb spring. I carry it with Underwood's 200gr Noslers. I've been debating on switching to the Xtreme Defenders.
Anyway, I've been absent for awhile. How are all you guys?
I am replying here rather than continue the XDm thread hijack.
I have one aftermarket barrel for the G20, but it is a 9X25 in stock length, not a longer barrel.
My G20 tracks about 10-15 fps slower than my 1911's in 10mm, and is about the same as my Witness' guns. About what you would expect from .5" less barrel.
I would expect a 6" barrel to buy you about 30-35 fps over the stock 4.6 length, and a 7" barrel about 50 fps over stock length. Several guys here have longer barrels and they can chime in with real world experience.
Most of the time I shoot my G-20 SF using the factory 10mm barrel and velocities are close to the 5" velocities my of other guns.
I do have a Lone Wolf 5.5" 10mm barrel for it but haven't tested with it yet.
I will say the 6" 9x25 barrel has a good performance gain over the shorter barrels.
Quote from: The_Shadow on October 23 2018 04:38:28 PM MDT
Most of the time I shoot my G-20 SF using the factory 10mm barrel and velocities are close to the 5" velocities my of other guns.
I do have a Lone Wolf 5.5" 10mm barrel for it but haven't tested with it yet.
I will say the 6" 9x25 barrel has a good performance gain over the shorter barrels.
My only 9x25 barrel is a Lonewolf 3.8" . I should have went with a 4.6".
7 inch barrel, 1300+ fps with various 200 grain bullets using published load data.
Quote from: Ridgerunner665 on October 24 2018 10:23:06 PM MDT
7 inch barrel, 1300+ fps with various 200 grain bullets using published load data.
That is amazing! I bet a G40 looks bad ass with a 7" in.
(https://i.postimg.cc/QCzdM4R4/IMG-20170526-181735877-zpsfl0uuv68-1.jpg) (https://postimages.org/)
Load = 180 grain Montana Gold JHP
New Starline brass
CCI Large Pistol Primer
9.3 grains of Longshot
COL 1.257
Gun #2 Glock model 20 SF stock except 20lb spring and tungsten guide rod .
5 Shot average velocity -1287 FPS
Gun #3 Glock model 40 with a 7" KKM barrel
5 shot average velocity 1510 FPS
All guns had low STD deviation all loads were accurate at 25 yards.
Outside Temprature was 6 deg F
No smiles and primers looked good.
Chronograph was 15 feet from end of the BBL
Quote from: Ramjet on October 25 2018 06:13:20 PM MDT
Load = 180 grain Montana Gold JHP
New Starline brass
CCI Large Pistol Primer
9.3 grains of Longshot
COL 1.257
Gun #2 Glock model 20 SF stock except 20lb spring and tungsten guide rod .
5 Shot average velocity -1287 FPS
Gun #3 Glock model 40 with a 7" KKM barrel
5 shot average velocity 1510 FPS
1510?! Geeez that is impressive!
Yea the velocity in the my carbine is only slightly higher. But I love the 7" BBL in the 40 and it not tough to carry in cheast rig for hunting.
Ridgerunner, who manufactures that 7 inch barrel?
KKM
Quote from: Ridgerunner665 on October 25 2018 04:50:21 PM MDT
(https://i.postimg.cc/QCzdM4R4/IMG-20170526-181735877-zpsfl0uuv68-1.jpg) (https://postimages.org/)
That looks bad ass. Some people dont like the look of the G40, but I do. I'm trying to decide if my next pistola will be a Delta Elite, G40, or a G20SF with a 6" barrel. Any of you chrono a G20 with the Glock 6" hunting barrel?
1276 FPS average with 20 rounds chronoed 14 feet away.
200 gr WFN moly coated from Montana Bullet Works and casted from the mihec mold.
13.2 gr of AA#9
Stock Glock G40
New starline brass
S&B primer
1.250" seated length.
Very nice!
My 4.6" Lonewolf barrel has a bit of free bore. I need to get back into handloading. I'd like to set the bullet out against the lands to make more room for powder. Can extra speed be achieved, such as 1300+ for a 200 from the 4.6, or does pressure put a stop to it?
Hey Overkill, one thing that comes to mind is by increasing the COL you tend to loose some bullet case neck tension to aid in powder ignition and burning.
I have seen 1265 from the G-20 factory barrel when developing loads for the Speer 200 grain Gold Dot that were sold as pulled bullets from a contract of 40S&W.
Started to see a little primer smear with that load of 9.4 grains of Longshot.
Quote from: Overkill338 on October 28 2018 06:43:33 PM MDT
Very nice!
My 4.6" Lonewolf barrel has a bit of free bore. I need to get back into handloading. I'd like to set the bullet out against the lands to make more room for powder. Can extra speed be achieved, such as 1300+ for a 200 from the 4.6, or does pressure put a stop to it?
Your gonna run into issues with a long OAL with the Glock magazine before you ever reach the lands.
Other WFN bullets with a meplat larger than 0.30" have to be seated deeper in order to work in the mag. The larger meplat actually makes the rounds bind because of the geometry involved. You can actually strip rounds off the magazine with your thumb and feel the loss of tension after the 5th or 6th round. This obviously causes jams when the mag is full.
However, earlier this year I got the mihec mold from a group buy from the castboolits guys. This design has a 0.30 meplat so now I can load to 1.250" and not jam. I recently sent the mold to Montana Bullet Works and now Bruce is casting them but they are not on the website yet. Just give him a call and ask for them.
I think it's possible to get a little more velocity but I'm not obsessing over it. It's very likely that even out of a 4.6" barrel the 200 gr bullet will still be north of 1200 FPS.
What about from the Ruger Redhawk? What do you think could be ahieved?
Quote from: MyAlias789 on October 28 2018 09:31:54 PM MDT
Quote from: Overkill338 on October 28 2018 06:43:33 PM MDT
Very nice!
My 4.6" Lonewolf barrel has a bit of free bore. I need to get back into handloading. I'd like to set the bullet out against the lands to make more room for powder. Can extra speed be achieved, such as 1300+ for a 200 from the 4.6, or does pressure put a stop to it?
Your gonna run into issues with a long OAL with the Glock magazine before you ever reach the lands.
Other WFN bullets with a meplat larger than 0.30" have to be seated deeper in order to work in the mag. The larger meplat actually makes the rounds bind because of the geometry involved. You can actually strip rounds off the magazine with your thumb and feel the loss of tension after the 5th or 6th round. This obviously causes jams when the mag is full.
However, earlier this year I got the mihec mold from a group buy from the castboolits guys. This design has a 0.30 meplat so now I can load to 1.250" and not jam. I recently sent the mold to Montana Bullet Works and now Bruce is casting them but they are not on the website yet. Just give him a call and ask for them.
I think it's possible to get a little more velocity but I'm not obsessing over it. It's very likely that even out of a 4.6" barrel the 200 gr bullet will still be north of 1200 FPS.
Theoretically I suppose it's possible but why bother. If I had to cross over to a wheel gun then it's time to switch calibers and go with 44 mag or larger where the ballistics are better for the same weight gun.
A four inch S&W 686 (357) or 629 (44 mag) weighs about 42 oz unloaded.
A Glock G40 is 44.62 oz with a loaded mag.
The overall length for all three guns are practically the same so they all carry about the same on the belt.
You carry the Noslers just for the woods or normal human defense?
Quote from: SPDSR on October 29 2018 09:58:48 AM MDT
You carry the Noslers just for the woods or normal human defense?
I carry the Noslers for human defense. I carry the XTPs for woods defense.
Quote from: Ridgerunner665 on October 25 2018 04:50:21 PM MDT
(https://i.postimg.cc/QCzdM4R4/IMG-20170526-181735877-zpsfl0uuv68-1.jpg) (https://postimages.org/)
That 10mm Glock must pack a sharp recoil whack, I have the G22 and it's my least favorite semi shooter. My G22 packs a sharp recoil slap, and for some odd reason I get an annoying trigger slap after about 3 mags fired. My wife on the other hand enjoys the G22 so it's a keeper.
No...
That added weight of the long slide tames it right down.
I have a 5" ruger 10mm and a glock 6.6" alphawolf barrel setup i ran some heavies through.
220gr ackerman cast over 9.0g blue dot, 1108fps in ruger, 1189fps glock
220gr ackerman cast over 10g blue dot, 1171fps in ruger, 1246fps glock
220gr Ackerman cast over 11.5g enforcer, 1023fps ruger, 1122fps glock
220gr Ackerman cast over 12g enforcer, 1057fps ruger, 1178fps glock
1.260" oal
220 grain at 1246....that's thumpin' !
Quote from: Overkill338 on November 10 2018 09:58:10 AM MST
220 grain at 1246....that's thumpin' !
(http://i64.tinypic.com/51xzl4.jpg)
In this monstrosity theres next to no recoil either. Ive pushed the 220s much harder with 800x but ill refrain from posting my crazy loads because a comp is truely needed at that level.
Gorgeous rig!
I truly love the 10mm. I know the revolver cartridges are more powerful, but it's hard to beat the 10 in practical size handguns. It can truly be a 357 Mag in semi form.
As some of you know, I just got the 41 Magnum Blackhawk, 6.5 inch barrel.
I just ran some Hornady factory rounds (210 XTP's) over the chrono and thought the results might be interesting to put in this thread.
The 6.5 inch 41 Mag averaged 1,300 fps with the 210 grain bullets.
My G40 with the 7 inch barrel...... averaged 1,300 fps with 200 grain bullets, using current published load data, and could have been pushed a little harder.
If that is not proof that a properly set up 10mm can genuinely get into 41 Mag territory then I don't know what is.
I know there are hotter 41 Mag rounds to be had, but I consider Hornady to be pretty decent ammo, and not just range fodder like WWB or Walmart Remington.
Underwood 10mm is a good bit hotter than my reloads.
41 GNR which is a 44-mag brass reduced to 41 will run much faster, my Blackhawk from Reeder is a real boomer in 41 caliber. I like the gun I like the power but not near as much as my 10mm.
I will agree you want 41 mag power then buy a 41 magnum. I remember years ago I had one in a S&W Mountain Gun it was nice carring handgun but hard to handle full power.
I am actually looking to go the other way heavier lower velocity Hardcast for hunting.
High velocity lower projectile weight for self defense. (commercial loads)