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December 14, 1999, 02:09 PM
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#1 |
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Senior Member
Join Date: June 8, 1999
Location: Tucson, Arizona Territory
Posts: 715
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A friend asked me this question. Glocks have what they call a "polygonal barrel" and cast lead rounds should not be used.
First, What does "polygonal barrel" mean? Second, I see folks pushing lead with Glocks all the time, so is this statement about not using lead bullets a wive's tale? Thanks! ------------------ Joe Portale Sonoran Sidewinder Tucson, Arizona territory |
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December 14, 1999, 02:45 PM
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#2 |
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Senior Member
Join Date: July 1, 1999
Location: Iowa
Posts: 2,135
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Polygonal: A two-dimensional form having more than four regular straight sides.
Doesn't really help much, does it?!? This is an instance where a picture is worth a thousand words. Grab a bore lite and take a look at your friends Glock. You'll see the difference between it and a regular cut rifling right away. The Glock barrels tend to build up lead fouling quicker than a regular barrel. The lead fouling if let go too long can cause pressures to rise to unsafe levels. Many folks do shoot cast bullets in a Glock, but they keep their bores clean. Good Luck... Joe ------------------ Go NRA |
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December 14, 1999, 05:39 PM
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#3 |
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Staff Alumnus
Join Date: February 23, 1999
Location: Denver, CO
Posts: 4,272
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The reason Glock barrels lead up faster is because their rifling grabs the bullet, instead of cutting in, like regular rifling. Personally, I don't use unjacketed ammo in any of my guns; I just don't like working that hard.
 ------------------ "The evils of tyranny are rarely seen but by him who resists it." -- John Hay, 1872 |
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