Lead out of a Glock?
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ljnowell
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Thats true of any firearm. Thats why you make sure it doesnt lead up. My G21 can shoot my lead loads all day at the range and not have a problem.
LiveLife
Member
IMHO, lead buildup will more likely affect accuracy first.
The reason why I endorse inspecting factory Glock barrels after 200-300 rounds of lead reloads and cleaning as necessary is that due to the increased high pressure gas leaking around the bullet, more gas cutting/bullet base erosion, liquefied lube blown off bullet surface and more fouling/leading smearing may occur near the chamber end (see post #23). If this smearing deposit near the chamber end becomes substantial with less than desired neck tension (due to several reasons outlined on this thread), bullet being chambered may hit the smeared constriction and the force of the slide returning to battery from recoil may push the bullet nose/ogive against the constriction/obstruction and cause bullet setback/seat the bullet base deeper in the case neck. And depending on the powder/charge used, this may result in varying degrees of compressed charge/increased chamber pressure load.
If/when this happens, the shooter will not know that a compressed/increased chamber pressure load is chambered and ready to fire as long as the slide returns to battery. If the slide does not return to battery due to the bullet hitting this constriction/obstruction, the shooter may unknowingly tap on the back of the slide to headspace the case mouth with the chamber which all may result in a KaBoom ranging from simple case failure (especially if the case wall has been weakened/thinned)/gas leakage down the pistol grip/ejection of magazine and breakage of magazine catch with just a stinging of shooting hand (one nice aspect of Glock plastic mag catch and polymer magazine as a safety "breakaway" feature to relieve escaping high pressure gas
) to something more serious - http://www.thehighroad.org/showthread.php?t=646086
Of course, this can happen in any pistol as I have seen several KBs with non-Glock pistols before I started seeing KBs with Glocks. Most shooters experiencing minor KBs with just the magazine blown out with breakage of mag catch is often perplexed when a double-charge condition is ruled out and reduced neck tension/bullet setback is not factored in their "root cause analysis" inquiry/investigation.
I often shoot a lot of rounds during each of my range sessions (300-500 typical to 1000+) and got tired of inspecting factory Glock barrels with increasing worry as the round count increased (you see enough people injured from KBs and you'll also worry too ... I like my hands just the way God made them ... intact). So I bought aftermarket barrels (Lone Wolf/KKM) with traditional square cut land/groove rifling. The primary benefit I experienced that differs from factory Glock barrels is that even after 500+ rounds of lead rounds, there is much less fouling build up with no leading and I usually only see residual lube smearing along the rifling without significant constriction that may increase chamber pressure (the worst extent of lead deposit is light smearing at the chamber end which comes clean with old copper bore brush wrapped with copper strands). Another benefit is that accuracy is maintained throughout the entire range session (start to finish) and they shoot more accurate than factory Glock barrels. If you don't shoot a lot, you don't need to use aftermarket barrels, but if you do, they are highly recommended.
G27 40-9 Lone Wolf conversion barrel after several hundred rounds of Missouri 18 BHN 125 gr RN and W231/HP38 loads - what you see is just residual lube that'll help seal/lubricate subsequent rounds fired and this IS NOT leading.
G22 40-9 Lone Wolf conversion barrel after a quick clean up with Hoppes #9 and old copper bore brush wrapped with copper strands (Chore boy)
G27 40S&W Lone Wolf barrel showing leade/start of rifling
The reason why I endorse inspecting factory Glock barrels after 200-300 rounds of lead reloads and cleaning as necessary is that due to the increased high pressure gas leaking around the bullet, more gas cutting/bullet base erosion, liquefied lube blown off bullet surface and more fouling/leading smearing may occur near the chamber end (see post #23). If this smearing deposit near the chamber end becomes substantial with less than desired neck tension (due to several reasons outlined on this thread), bullet being chambered may hit the smeared constriction and the force of the slide returning to battery from recoil may push the bullet nose/ogive against the constriction/obstruction and cause bullet setback/seat the bullet base deeper in the case neck. And depending on the powder/charge used, this may result in varying degrees of compressed charge/increased chamber pressure load.
If/when this happens, the shooter will not know that a compressed/increased chamber pressure load is chambered and ready to fire as long as the slide returns to battery. If the slide does not return to battery due to the bullet hitting this constriction/obstruction, the shooter may unknowingly tap on the back of the slide to headspace the case mouth with the chamber which all may result in a KaBoom ranging from simple case failure (especially if the case wall has been weakened/thinned)/gas leakage down the pistol grip/ejection of magazine and breakage of magazine catch with just a stinging of shooting hand (one nice aspect of Glock plastic mag catch and polymer magazine as a safety "breakaway" feature to relieve escaping high pressure gas
) to something more serious - http://www.thehighroad.org/showthread.php?t=646086Of course, this can happen in any pistol as I have seen several KBs with non-Glock pistols before I started seeing KBs with Glocks. Most shooters experiencing minor KBs with just the magazine blown out with breakage of mag catch is often perplexed when a double-charge condition is ruled out and reduced neck tension/bullet setback is not factored in their "root cause analysis" inquiry/investigation.
I often shoot a lot of rounds during each of my range sessions (300-500 typical to 1000+) and got tired of inspecting factory Glock barrels with increasing worry as the round count increased (you see enough people injured from KBs and you'll also worry too ... I like my hands just the way God made them ... intact
). So I bought aftermarket barrels (Lone Wolf/KKM) with traditional square cut land/groove rifling. The primary benefit I experienced that differs from factory Glock barrels is that even after 500+ rounds of lead rounds, there is much less fouling build up with no leading and I usually only see residual lube smearing along the rifling without significant constriction that may increase chamber pressure (the worst extent of lead deposit is light smearing at the chamber end which comes clean with old copper bore brush wrapped with copper strands). Another benefit is that accuracy is maintained throughout the entire range session (start to finish) and they shoot more accurate than factory Glock barrels. If you don't shoot a lot, you don't need to use aftermarket barrels, but if you do, they are highly recommended. G27 40-9 Lone Wolf conversion barrel after several hundred rounds of Missouri 18 BHN 125 gr RN and W231/HP38 loads - what you see is just residual lube that'll help seal/lubricate subsequent rounds fired and this IS NOT leading.
G22 40-9 Lone Wolf conversion barrel after a quick clean up with Hoppes #9 and old copper bore brush wrapped with copper strands (Chore boy)
G27 40S&W Lone Wolf barrel showing leade/start of rifling
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LiveLife
Member
I think my morning coffee just kicked in. Just reread your post and I agree.
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