The Lone Haranguer
Member
The type of rifling in my barrel is in the bottom of the cellar on my priority list of features.
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Where did the "You can't shoot lead through polygonal barrels" myth originate?
I have both a Glock and a H&K in my possession. The H&K has a polygonal barrel, the Glock has an oddly rifled barrel - but not a polygon in cross section. Neither owner's manual says anything about lead bullets. The Glock book says only commercial ammo.
I've shot a bit of lead bullets down the H&K without ill effect.
So who started the 'no lead in polygonal rifling' myth? Anyone know?
Q: Why can't I shoot lead bullets in my Glock?
A: GLOCK rifling is hexagonal or octagonal for better bullet-to-bore seal. Lead builds up more quickly in these types of rifling and the lead build-up will increase chamber pressures to an unsafe level.