Reloading for Glock 21sf

[alan98]

I think I've read different things regarding glocks and reloads, especially cast bullets. Are there any special precautions to follow when reloading for a glock 21 .45 cal? I won't be using any cast bullets. I'm buying one soon and was gonna get some components on the way for reloads. Seems I could save a decent amount reloading these.

Thanks,

Alan

 

[jrpilot]

Re: Reloading for Glock 21sf

I have shot lead in Glocks for a long time. I clean it at least every 200 rounds, and dont have any problems. I dont hardly even get any lead in the barrel. From what I have heard, the people who get in trouble with lead are shooting really soft lead and not cleaning the gun often.

 

[Victor N TN]

Re: Reloading for Glock 21sf

My G21 has had literaly thousands of cast lead bullets shot through it. I don't cast that much now. But with any bullet weighing 230 grains, Vit N-340 at around 6.0 grains will get you close to 1,000 fps. That's above Mil Spec for that bullet. But it isn't too very hot for that gun. It is a bit hot for a 1911 though. But that's the cleanest burning load for a 45 I have ever shot.

If you are concerned about leading the barrel, check with Brownells and get a "Lewis Lead Remover". They are easy to use and you'll never have a doubt if it's clean.

I clean it after each outing to remove any possibility of doubt that it may or may not jam or have feeding problems. Since it's my main carry pistol I clean it a few times a year to get the lint and dust out of it. That gives me a reason to lube it again before I put back in the holster.

 

[alan98]

Re: Reloading for Glock 21sf

What is a good brand of jacketed bullet you have found for the Glock for training use?? Looking for a decent priced with good accuracy.

Thanks again,
Alan

 

[Victor N TN]

Re: Reloading for Glock 21sf

The Ranier coated bullets work really well in mine. I use their 230 grain FMJ. For carry purposes I carry a staggered magazine of Winchester silver tips and factory FMJ rounds.

 

[jrpilot]

Re: Reloading for Glock 21sf

For plated bullets try Ranier, and Berrys plated bullets. Both work very well.

 

[M855]

Re: Reloading for Glock 21sf

I like montanna gold or precision delta bullets,berrys and raniers in 9mm and 40 have more of a cone/point shape to them and are a bitch to seat in my press/dies

 

[chops_are_in]

Re: Reloading for Glock 21sf

For the extra piece of mind, and a little more accuracy, I install KKM Precision barrels in all of my Glocks, including my 21. Having conventional rifling and a more fully supported chamber leaves a lot less to be concerned with. In my experience with IDPA matches and various training courses of fire, I haven't given up any reliability with KKM barrels. Of course I'm not dumping handfuls of sand into them either.

I have several kinds of .45 ACP factory ammo leave "smilies" on their brass when fired in Glock 21's. I don't like it. So I fix it my guns. JMHO.

Chops

 

[jet_lagged]

Re: Reloading for Glock 21sf

http://www.precisiondelta.com/

Precision Delta has the best prices that I have found.

As mentioned, cast lead is supposed to cause problems with the Glock polygon barrels. So I use plated or jacket and really never clean the thing........

 

[Tangodown911]

Re: Reloading for Glock 21sf

jacketed...roze distributing.

And KKM is the Bals. My threaded Barrel was worth the $223.00.

 

[mdmp5]

Re: Reloading for Glock 21sf

For .45, I usually buy 500 or 1000 lot boxes of hornady 200 C/T or 230 enc flat nose. They both shoot great when my gun is clean.

 

[Niles Coyote]

Re: Reloading for Glock 21sf

As I recall, the only problem using reloads was with the unsupported chamber in the <span style="text-decoration: underline">40 cal</span> Glocks. You should be fine with all the others.

 

[jrpilot]

Re: Reloading for Glock 21sf

I think the 40 cal problems were with the older gen glock. I have a 3rd Gen 40, and reload cast with no leading or any other issues. I dont shoot more than 200 rounds with out cleaning. I dont want to chance a build up and peasure spike.

 

[Tangodown911]

Re: Reloading for Glock 21sf

As a certified (up to date) Glock armorer, Glock is very much against using reloads because of the unsupported chambers. So this at least still exists.

 

[Clark]

Re: Reloading for Glock 21sf

I got an old used Glock22 40S&W 10 years ago that had a feed ramp intruded .235" from the breech face. With 40sw case webs 0.180" thick, that leaves .055" of thin unsupported case wall.

I could only over load ~ 25% more powder than maximum book loads. When I got to 25% extra powder, the ejected cases had a guppy belly case bulge that is a precursor to a kaboom blow out.

Also, the chamber diameter was too loose.
The SAAMI registered chamber for 40sw is from .4274" to .4314", and I would expect it to be on the small end, but it was over the top on the big end at .4400".

I TIG welded up the chamber mouth and re cut the chamber and the feed ramp so the feed ramp intrusion was only .180".

After I improved case support over the feed ramp, I have been able to shoot with 146% extra powder:
Book load max: 6.3 gr 800X 200 gr bullet
Over load with good chamber support: 15.5 gr 800X 200 gr
That overload kicks way to hard to be practical and requires double compression to fit the powder, but proves something about case support.

What does it all mean?
If a guy wants to handload hot overloads for a Glock, he should consider an aftermarket barrel with better case support.

 

[RECKON SO]

Re: Reloading for Glock 21sf

Reckon what it matters if your just matching factory loads and not getting crazy with pressures? Does the barrel know who put the rounds together? I aint being short, but when I get setup to load for my G21SF I'm just gonna try to match a good 230gr ball load the best I can and call it a day. I cant find where that should cause a problem, If Im wrong Im all ears.

MUCH OBLIGED