Glock打铅弹问题

dengdengdeng

今天Cabelas有便宜的9mm铅弹. $69/300发
我买了600发.旁边一乌克兰老乡说你有Glock吗?我说不是.他说那就没事.
Glock不喜欢铅弹,枪管容易积铅,因为来福现不同.

回来Google了一下,好像是有这种说法.
哪位大佬详细解释一下?

PhilipJ

据说Glock这样多边形膛线的枪管打铅弹头容易积铅。还是打被铜的吧。

thelittleone

的确有这个说法。我暂时还没打算测试一下。不想弄坏枪。。
glock想打铅弹可以，但是弹头硬度要高。硬度高的铅弹还有一定成分的tin，antimony和lead。例如5%tin，5%的antimony和90%的lead。或者更高。例如18BHN的。
但是，还是可能会造成glock barrel出现问题。所以。。需要自己自行定夺

Friediceman

Wiki的解释覆盖了我听说过的所有说法：

http://en.wikipedia.org/wiki/Polygonal_rifling

The manufacturer Glock advises against using lead bullets (meaning bullets not covered by a copper jacket) in their polygonally rifled barrels, which has led to a widespread belief that polygonal rifling is not compatible with lead bullets. Firearms expert and barrel maker, the late Gale McMillan, has also commented that lead bullets and polygonal rifling are not a good mix. Neither H&K nor Kahr explicitly recommend against lead bullets in their polygonal rifled barrels, suggesting that there might be an additional factor involved in Glock's warning. Kahr's warns that lead bullets can cause additional fouling[7] and recommends special attention to cleaning after their use. While H&K doesn't insist on a copper jacket, at least one well-documented catastrophic incident in an H&K pistol[8] may be related to this issue. Furthermore, Dave Spaulding, well-known gun writer, reported in the February/March 2008 issue of Handguns Magazine that when he queried H&K about their polygonally rifled barrels that they commented: "It has been their experience that polygonal rifling will foul with lead at a greater rate than will conventional rifling."

One suggestion of what the "additional factor involved in Glock's warning" might be is that Glock barrels have a fairly sharp transition between the chamber and the rifling, and this area is prone to lead buildup if lead bullets are used. This buildup may result in failures to fully return to battery, allowing the gun to fire with the case not fully supported by the chamber, leading to a potentially dangerous case failure. However, since this sharp transition is found on most autopistols this speculation is of limited value. The sharp transition or "lip" at the front of the chamber is required to "headspace" the cartridge in most autopistols.

Another possible explanation is that there are different "species" of polygonal rifle and perhaps Glock's peculiar style of polygonal rifling may be more prone to leading than the particular styles employed in the H&K and Kahr barrels.

thelittleone

铅弹的准度并不差，其实许多bullseye选手还喜欢用铅弹。因为某些铅弹的形状的问题，打在靶纸上有一定优势。但是，现在来说。。我觉得除非你有特殊需求来用铅弹。如果都是戳靶纸，那么还是平常的FMJ和HP的弹头更好一些。

graycat2006

纯铅的弹头最好少用，即使没有安全问题，这种弹头也很脏， 尤其是它们带蜡，打起来烟大，蜡也会沉积在枪了。copper plated的铅弹头也很便宜，比较干净，看起来象FMJ。上次在Glock 19 里打了200发，没发现什么问题。

akula

我觉得奇怪，多边形膛线比较光滑，照理说更不容易挂铅啊。。。。。

graycat2006

到底什么是多边形膛线 （polygon rifling）？我的理解是象CZ-82那样，整个枪管内壁是扭曲的多边形，看不到“膛线”。不知道Glock是什么样子？至少Glock 19的看起来和普通的枪管没什么区别。