Reloading for Glocks

T

Truckdrivingman

Inactive
Hello all,

In 2 weeks I'll get my Glock 20, and I want to reload the ammo. Now I've heard that the original barrel with its unsupporting chamber may cause trouble with reloaded ammo. Anybody around who reloads with the original barrel? I'd like to learn about your experiences, positive and negative ones

Tom
 
If reloaded is within specs how would your Glock or any other gun for that matter know the difference?
 
I got a 1995 Glock 20 in 1998 just to overload and see what happens.
The case support...

10mm brass has a 0.180" thick case web.

1) My stock Glock barrel has a feed ramp 0.288" deep making for 0.108" of unsupported thin case wall. This is good enough for any published load, just barely for Hodgdon's 180 gr 9.5 gr LONGSHOT. A bulge starts with 3% extra powder. Much better with other powders.

2) My Bar Sto aftermarket barrel feed ramp at 0.230" making for 0.050" of unsupported case wall. This is good for considerable overloads until the primer falls out due to weak 10mm case head design with deep extractor groove and large primer pocket.

3) My KKM aftermarket 40sw barrel with feed ramp at 0.200 [40sw also has a 0.180" web and is stronger with small primer pocket] should be more powerful than the above, but needs to be throated first to use the full 1.28" OAL with 200 gr bullets that will feed from the Glock 20 magazine.

4) This is how I built a 22 pound recoil spring assembly for the Glock 20

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My 9mm Glock does not suffer from case support problems like my 10mm and 40sw Glocks.

My Glock 19 9mm has a 0.190" feed ramp compared to 9mm brass with a 0.160" web. That is 0.030" of thin unsupported case wall, which might as well be nothing.

I made a 48 pound triple spring recoil spring assembly for my Glock 19. That is not enough recoil spring to keep up with the loads that barrel will support. That IS too much spring [too fast a slide] for the trigger to reset or the magazine to push up another round. I have to use a New York trigger and double mag springs in parallel. So not only does it take Superman grip to chamber a round, but takes Superman finger to pull the trigger and Superman thumb to load the magazine.
 
I don't shoot a Glock so my post mebbe just FWIW; I've read a lot about Glocks when I was contemplating getting a "plastic" striker fired gun. From what I gathered, the only problems with "unsupported" chambers was in the 40 S&W, with the 9mms and 45 ACPs doing fine...
 
Anybody around who reloads (for the Glock 20) with the original barrel?
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I do.

The short story is that I load for the original barrel just the same as for my Lone Wolf barrel. The only difference is that the brass comes out with a little more bulge from the stock barrel as opposed to the LWB. But the loads are the same.

Just to let you know however, I only occasionally shoot with the stock barrel. Most range trips are with the LWB - that's why I got it. Put the "mileage" on the aftermarket and preserve the stock.
 
I load my Glock 23 to match Winchester Ranger 155s. Speer GDHP 155 go 1,196 average out of mine. No bulge, no problem. Stock barrel.
 
The problem with unsupported glocks was only with the 40 s&w because it has such high pressures and only with brass that has been fired several times. Just make sure you check your brass and if it has bulged , discard it.
 
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