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Running moly coated lead thru your OEM Glock barrel, especially 9mm going over 1,000 fps can be bad business. Copied from the USPSA magazine Front Sight.
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Pics? I would like to see the results.... -
not this again.Comment
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I'd like to know what size the bullets were sized to, alloy, hardness test and lube used.Politicians should only be allowed one term in office, then one term in jail.Comment
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Don't worry, I predict that next year lead in bullets will be outlawed completely in Kalifornia."I think, therefore some people make me laugh"Comment
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My glock loves lead. Can't seem to eat enough. I know I have put close to 1k through it and no boom.
LatesvakComment
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A whole 1,000 rounds? And what bullet type, weight and caliber and what did it chrono at?
I ran over 125,000 rounds thru a G21. 230 gr hard cast, no molly, no issue. Why? because they were only going 780 fps, well over the major floor of 165, wouldn't even clean the barrel for 2,000 rounds or so. When I stopped shooting .45acp, and started running 40S&W 180 gr Bear Creek, I put more than 40,000 thru, but still only going about 940 fps for major. When I switched only to 9mm, and ran over 25,000 147 gr Bear Creek going about 890 fps, for a minor floor of 125, still no issues. Then when I switched to 125 Bear Creek, strictly for price point, going 1,180 fps, with serious lead build up after about 200 rounds. Once you pass the 'Lead Floor' of 1,000 fps it builds rapidly. And it is a huge PITA to clean, basically only the copper Chore Boy pads work, and it's allot of work. So switched the two G17 competition guns to stainless steel cut rifled barrels, no worries. Plus it's easier than pie to clean with the old, old recipe of 50/50 hydrogen peroxide and white vinegar, no work at all.
This post is not for experienced competition shooters, but rather for the first time Glock buyer, especially the G17 and G19, who buy lead reloads and then ask "Can I shoot lead thru my 9mm Glock?" Yes you can, but be aware that it builds up very, very quickly. Run what you want, it's your Glock, not mine,,,Comment
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Don't be dirty. Run fmj and sleep well at night.sigpic
PIMP stands for Positive Intellectual Motivated Person
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Don't let your history be a mysteryComment
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...but their exists also in the human heart a depraved taste for equality, which impels the weak to attempt to lower the powerful to their own level, and reduces men to prefer equality in slavery to inequality with freedom.Comment
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Really, why do you think guys that shoot Open Division USPSA 9mm Major run full metal jacketed bullets? Talking about a 125 grain 9mm going over 1,320 fps. If it was a lead bullet, half the weight would end up in the barrel and compensator. Velocity IS the dependant variable. DO you shoot lead bullets in your .223Rem or .308Win? I think YOU should try it, I mean it's only going about 3,200 fps...
obdurate that.Comment
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Compensator have their own effect. Funny, though we were not talking about compensators but polygonal rifling. Also we were talking glocks not rifles.
But since you want to talk rifles, people do shoot bare lead in rifles. Some use paper patching others use some mystic voodo lube.
I will get back to you when I get the setup complete for running 8x57IS lead-tin without gas-checks. If we go by the book it should not stabilize. I am betting it will. At the worst I will have to gas check them to lessen deformation since I have yet to find any burnthrough on the polyester coatings. Some people are reporting stable bullets in harder alloys with poly going through 7.62x54.
Mind you, I don't shoot bare lead. I plate mine but copper fouling is annoying so I also use powdercoat instead, which is a polyester coating. It adds no integrity to the bullet.
To wrap this all up, I've shot lead into the 1450+ range and can't yet claim 1600+ because I didn't have the chronograph setup while shooting those heavy loads.
But I cheat with polyester bullet coatings and super soft lead-tin alloys. I would like to try the polyester through a compensator some time to see if it "shaves" as my alloy obdurates heavily and is likely to still be deforming on barrel exit when it encounters the compensator cuts. But alas I don't have anything with those silly things.
Get off yer high horse mate. You can't change the subject from glock polygonal to high powered custom compensated pistols using custom +P+ loads in competition.Last edited by meaty-btz; 09-29-2013, 7:50 PM....but their exists also in the human heart a depraved taste for equality, which impels the weak to attempt to lower the powerful to their own level, and reduces men to prefer equality in slavery to inequality with freedom.Comment
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"Bruen, the Bruen opinion, I believe, discarded the intermediate scrutiny test that I also thought was not very useful; and has, instead, replaced it with a text history and tradition test." Judge Benitez 12-12-2022
NRA Endowment Life Member, CRPA Life Member
GLOCK (Gen 1-5, G42/43), Colt AR15/M16/M4, Sig P320, Sig P365, Beretta 90 series, Remington 870, HK UMP Factory Armorer
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I instruct it if you shoot it.Comment
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what do you think gas checks are for??? Why do you think they are made out of copper? Leading is a function of velocity for both pistol and rifle. But it is most critical with hammer forged rifling (polygonal). The freebore diameter reduces rapidly in the test that Mark Passamack, PE, pointed out. But you probably have more testing background than he does.... or know more about Glocks than Robin Taylor does.
Last edited by HighLander51; 10-02-2013, 1:59 PM.Comment
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I exchanged the stock polygonal barrel with a Storm Lake barrel and lead, coated, and jacketed ammo works fine. Buying a glock is like buying software with a known bug, then getting a patch to make up for the manufacturer's shortcoming.Comment
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I've never had this problem in my 9mm glocks, but I don't compete with them so I haven't put nearly enough rounds through them to say anything with certainty on the matter. I haven't seen anything that would change, however, since 125gr bear creek bullets haven't left any significant deposits after about 5k rounds in my G19.
I will say that I've shot enough bullets under 1000fps to say that any blanket statement that glocks can't shoot lead is simply untrue.Comment
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