Loading for G23 Gen 4

Hartblood · February 14, 2014, 02:32 AM

Loading .40 with AutoComp at starting load with 165gr. Plated FP. With a over all length of 1.135".

Barrel Chamber: .430"
Resized case: .417"
Live round: .420" at case head and mouth.
Spent round: .425" - .428" in middle of the case.
The small part of brass over the feed ramp did not change it stayed at .420".

Am I looking for a KB with this much movement back and fourth?

Would like to get a aftermarket barrel if it would help. I looked at the Lone Wolf but it had twice as much feed ramp intrusion. Can anyone tell me about the feed ramp intrusion of a KKM barrel or any other barrel? Pictures would be very helpful.

WESHOOT2 · February 14, 2014, 02:32 PM

If not hot-rodding your brass is fine.

KKM offers superior Glock barrels; recommend.

Rico567 · February 14, 2014, 03:30 PM

Is your powder charge within the manual spec? If so, you should be fine. I shoot a reasonably warm .40 S&W load, 5.9 gr. of Hodgdon Universal, Win. SP primer in a Win case, Rainier 165 gr. plated. This develops 1150+ in my G24 longslide. I get no trace of a bulge, either in the G24 (as it happens, it's running a KKM barrel) or in my other .40 Glocks.

totaldla · February 14, 2014, 05:30 PM

I don't think so. Usually we worry about a bulge at the unsupported part. Btw, are you loading on a Dillon sdb? Rounds sound a little coke_bottled.

Hartblood · February 16, 2014, 01:23 PM

Not hot rodding just want to get 165 power factor and that is it. Loading on a Lee press with lee carbide dies and yes they are coke bottle shape.

Ruger45LC · February 16, 2014, 05:38 PM

You don't NEED an aftermarket barrel to load for it, I've ran some rather warm loads through my Gen4 23 (and 35) including some AutoComp. I like KKM and pretty much have one for every Glock, but for "normal" loads it's not a must have. If you want a KKM great, but don't buy one just because you think you need it for a simple 165PF load because you don't.

February 14, 2014, 02:32 AM	#1
Hartblood Member Join Date: May 11, 2013 Posts: 28	Loading for G23 Gen 4 Loading .40 with AutoComp at starting load with 165gr. Plated FP. With a over all length of 1.135". Barrel Chamber: .430" Resized case: .417" Live round: .420" at case head and mouth. Spent round: .425" - .428" in middle of the case. The small part of brass over the feed ramp did not change it stayed at .420". Am I looking for a KB with this much movement back and fourth? Would like to get a aftermarket barrel if it would help. I looked at the Lone Wolf but it had twice as much feed ramp intrusion. Can anyone tell me about the feed ramp intrusion of a KKM barrel or any other barrel? Pictures would be very helpful.

February 14, 2014, 02:32 PM	#2
WESHOOT2 Senior Member Join Date: February 20, 1999 Location: home on the range; Vermont (Caspian country) Posts: 14,324	If not hot-rodding your brass is fine. KKM offers superior Glock barrels; recommend. __________________ . "all my ammo is mostly retired factory ammo"

February 14, 2014, 03:30 PM	#3
Rico567 Senior Member Join Date: October 19, 2005 Posts: 162	Is your powder charge within the manual spec? If so, you should be fine. I shoot a reasonably warm .40 S&W load, 5.9 gr. of Hodgdon Universal, Win. SP primer in a Win case, Rainier 165 gr. plated. This develops 1150+ in my G24 longslide. I get no trace of a bulge, either in the G24 (as it happens, it's running a KKM barrel) or in my other .40 Glocks. __________________ "Dear reader, suppose you are a member of Congress. Now, further suppose you are an idiot. But I repeat myself." - Mark Twain

February 14, 2014, 05:30 PM	#4
totaldla Senior Member Join Date: August 10, 2009 Location: SW Idaho Posts: 1,295	I don't think so. Usually we worry about a bulge at the unsupported part. Btw, are you loading on a Dillon sdb? Rounds sound a little coke_bottled. __________________ Lee Auto Bench Prime Castor Oil Case Lube

February 16, 2014, 01:23 PM	#5
Hartblood Member Join Date: May 11, 2013 Posts: 28	Not hot rodding just want to get 165 power factor and that is it. Loading on a Lee press with lee carbide dies and yes they are coke bottle shape.

February 16, 2014, 05:38 PM	#6
Ruger45LC Senior Member Join Date: July 24, 2005 Location: Kentucky Posts: 768	You don't NEED an aftermarket barrel to load for it, I've ran some rather warm loads through my Gen4 23 (and 35) including some AutoComp. I like KKM and pretty much have one for every Glock, but for "normal" loads it's not a must have. If you want a KKM great, but don't buy one just because you think you need it for a simple 165PF load because you don't.