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  #1  
Old 10-19-2009, 10:51 PM
Combat Diver's Avatar
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Glocks and lead bullets?


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This week I've been offered a deal on a Special Forces special addition on a Glock 30 (SF,C,RTF) in .45 ACP. Now, I'm not a Glock fan as I've shot them and never like the feel, granted they work and always seem to. My question is how does the Glocks handle reloads and especially with lead bullets? I cast 95% of my 45 ACP bullets for my M1911 and would continue to shoot lead through the Glock if I get it.

Thanks in advance.

CD
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  #2  
Old 10-20-2009, 03:20 AM
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While there are shooters who use lead bullets in their Glocks, it is generally not advisable to do so. The polygonal rifling in the Glock barrel is not kind to lead bullets and evidence has it that lead build up and pressure rise can occur quickly.
Here's an excerpt from a book review of "The Glock in Competition" which I copied from Dillon's Blue Press. It addresses the leading issue:
Quote:
As far as I’m concerned, the chapter on Glock
blowups alone is worth the price of the book.
Blowups, also known as Kabooms, KB malfunctions,
etc., are analyzed in a
methodical, easy-to-comprehend
way. The short
answer is: Don’t double
charge, beware of out-ofbattery
firing and the resultant
need to use correctly
dimensioned ammunition,
and NEVER NEVER NEVER
use lead bullets in a factory
Glock barrel.
Mark Passamanck goes to
great detail into the design
of Glock polygonal rifling. A
design meant to optimize
accuracy with jacketed bullets;
the polygonal rifling
swages the bullet into essentially
an octagon shape.
Copper withstands this
swaging quite well, so that
even jacketed bullets with
inconsistencies perform very
well. However, lead tends to
tear away and is left as
deposits in the barrel; therefore,
firing as few as five
rounds of lead ammunition
will cause significant pressure
increases in polygonalrifled
barrels. Mark
describes a Glock 19 barrel that KB’d after firing
approximately 1500 rounds of commercial lead
ammo. Because of excessive lead residue, the bore
diameter at the front of the chamber was .323,”
causing pressures of more than 60,000 PSI. The
end result was a cracked frame and a split barrel.
Pete
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  #3  
Old 10-20-2009, 04:47 AM
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Thanks Pete.

CD
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  #4  
Old 10-20-2009, 05:58 AM
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Glock barrels with their polygonal rifling are not for use with lead bullets as Pete D. has documented. However, there are aftermarket drop-in barrels made by Bar Sto and others with conventional rifling that work fine with lead bullets in a Glock. So if you want a Glock and want to use lead bullets (both quite sensible decisions, by the way) consider getting an extra barrel for use with lead.
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  #5  
Old 10-20-2009, 10:48 AM
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Keep in mind Glocks don't handle case head separations well. Or at all, basically.

We have had a bunch of arguments, er, discussions on the subject. Before I knew it "couldn't be done" I did load good hard cast bullets in several Glocks. Since I don't have the guns any more, I no longer reload for them.... but I probably would if I did.

The real keys are ensuring that you don't get a bunch of chamber / throat fouling at from your loads, whether or jacketed. Glocks do occasionally come apart with factory loads, but it seems to be the higher-pressure stuff like .40 S&W that does them in. No doubt the very obscenely generous chamber dimensions in factory Glock barrels are contributing to the problem.

If you want to reload, the .45 may be the best one to start with as pressures are the lowest. Good luck and be careful if you go that route.
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  #6  
Old 10-20-2009, 11:13 AM
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Thanks guys, If I do got the Glock its more for a commentitive/retirement piece then a carry gun. Seems I'll have to pick up a spare barrel for the lead use. I'll still stick to my M1911 and Smith 58 for carry.

CD
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  #7  
Old 10-20-2009, 01:59 PM
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Glock solution get an aftermarket kkm or other barrel shoot led. Ive shot several thousand rounds of led bullets through my glock 30. However ive always shot hard cast bullets through it and cleaned it every 150-200 rds. However I got tired of doing this so I just purchased a kkm barrel for it. I dont buy into the whole glocks are dangerous kB! thing. Eventhough ive done it id suggest staying away from led bullets in a glock barrel. Any gun by any manufacture can let loose ive personaly witnessed a few and have held in my hand several that have let loose. If you reload just do as always be carefull and pay attention to what you are doing.
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  #8  
Old 10-20-2009, 04:48 PM
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I Usually.......

.......like the Dillon stuff but.......GOLLY !!!

Facts are this ---->
* use all the lead you want in a Glock bbl,as long as it is hard cast.
*shoot soft lead thru your Glock bbl,as long as you clean after every 100rds or so.
*make sure to clean your bbl after shooting any amount of lead(even hard cast) BEFORE you shoot jacketed bullets

I have shot quite a bit of hard cast(200gr WFNGC Hard cast from Double Tap) thru my Glock 20 without a problem. This from both, my standard G20 bbl and my OEM Glock 20,6" hunting bbl.

The only problem that you could have with a Glock OEM bbl is the reload-ability. With Glocks unsupported chamber(to some degree) you get some case bulge that is unsightly,but re-loadable. If I were to tool up to reload my G19 or my G20 I would buy an aftermarket bbl.

Be aware though,that the Glock OEM bbls are designed with chambers that somewhat do not fully support the case head for a darn good(GREAT!!) reason......superb reliability.

In summation.....shoot all the lead you want,just don't be afraid to clean afterwards. -----pruhdlr
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  #9  
Old 10-20-2009, 07:01 PM
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I do shoot lead...but under special circumstances. Generally it's hard cast and loaded to no more than it takes to reliably cycle the action. Gun gets cleaned ever 100 rounds (for that matter, it gets cleaned even if i shoot just 50rounds... while they can handle a lot of abuse, haven't seen a decent argument that a dirty gun is somehow "better" than a clean well lubed one). For lead bullet practice, see no reason to load any hotter than a reliable, accurate lead bullet load... if I want to go fast/duplicate the feel of hot defence ammo, will go to jacketed.
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  #10  
Old 10-20-2009, 07:27 PM
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drop in cut rifling barrels usually fully support the case head, so reloading isn't an issue. factory glock barrels DON'T fully support the case head and, while this isn't a problem for new ammo, causes fired cases to bulge near the head. this weakens the case and can lead to head separation...or worse. for the definition of 'worse', do a google search on glock kaboom.
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  #11  
Old 10-21-2009, 04:09 AM
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Well it seems I'll be sticking to my M1911 for the .45 Cast loads. However, my son did order himself a Glock 30sf with the bells and whistles and he ordered for me a Glock 19rtf, OD frame, night sights and the custom engarving. I went with the 19 for I've got a bunch load of mags in my kit (picked them up down range). The Glock will be the bedroom gun replacing my Smith 6904 for me to finally carry during the summer (used to carry a 6906 for years).

Thanks for all the relpys guys, I'll be sure to pick up another barrel for the Glock when she and I meet.

CD
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  #12  
Old 10-21-2009, 04:29 AM
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"Only" One More

The "KA-BOOM's" that have occurred with Glock pistols in any caliber are due to the incompetence,ignorance,or complete lack of common sense of the shooter/owner.

Take a Glock(any Glock), use OEM parts,use SAAMI spec ammo,operate the weapon as per the owners manual,you will NEVER have a "KA-BOOM".

People like to frig with their Glocks. Tinker,upgrade,enhance,personalize,even beautify might be a better word. It's kinda like a Ruger 10/22,a 1911,or any of the other customizable weapons out there. Glock owners start changing bbls,springs,guide rods,and the inner guts,then wonder why their Glocks don't shoot with the reliability that it should have.

Unlike a Wilson,Baer,STI,or other custom pistols,the Glock is made to be reliable.....NOT to shoot 1" groups at 25yds. First thing that anybody that knows Glocks will tell you, if you encounter problems with a Glock is,"return the weapon to the way it was when you opened the box".

A Glock is a "working "pistol.....NOT a BBQ pistol. Colts and Kimbers are the weapons you show your friends. Glocks are the weapons you show your enemies.

I have modified my Glocks BUT......I will never assume that I am smarter than Gaston Glock or his designers. Other end users of Glocks shouldn't be guilty of this either. -----pruhdlr
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  #13  
Old 10-25-2009, 03:05 PM
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Quote:
Originally Posted by Combat Diver View Post
Well it seems I'll be sticking to my M1911 for the .45 Cast loads. However, my son did order himself a Glock 30sf with the bells and whistles and he ordered for me a Glock 19rtf, OD frame, night sights and the custom engarving. I went with the 19 for I've got a bunch load of mags in my kit (picked them up down range). The Glock will be the bedroom gun replacing my Smith 6904 for me to finally carry during the summer (used to carry a 6906 for years).

Thanks for all the relpys guys, I'll be sure to pick up another barrel for the Glock when she and I meet.

CD

Sometime ago I purchased a Lone Wolf barrel for my 19. It has a very tight chamber and is very finicky about reloads. I am trying to learn to make my Dillon squeeze brass down enough to fit. However, that failing, the fine folks at Lone Wolf will take my barrel back and ream the chamber at no charge.

My son in law may work for the same company as you. He is always bring back goodies from "downrange". I finally asked, what and where the devil is "downrange". He explained that it was a duty free shop only open to certain select service members in Afganistan or Iraq. I guess I won't qualify, but I sure like the high speed goodies that he "buys" there.
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  #14  
Old 04-17-2010, 11:33 AM
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My son finally sent me some pics of my NIB G19 RTF OD Frame w/night sights and SF Crest. I still think he is getting a better deal with me giving him my old Smith M29-2 6.5" P&R, presentation case and Old El Paso Saddlery #2 holster.





CD
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