is this Luger taking too much battering?

[Sieger]

Originally Posted by rhuff

If your lead bullets are leading your barrel, they may well be undersize for your bore. Have you slugged your bore to determine the exact bore that your Luger has ? Many/most of the original luger barrels were over the .355in that they were quoted as having. Many were .357-359 in. and if you are loading .355-356in bullets, then you can expect leading, especially with light loads that will not upset/obturate the bullet base.

I load lead in my 30 Luger brass, and try to use .002-.003in over the bore measurements. If you already knew this information, I apologize for repeating it.

Hi,

Everything you say here is true for normal 9mm chambers, however, the Luger has a stepped chamber that will not allow for a bullet diameter larger than .356. Anything larger will jam in the chamber, or worse yet, cause the breach block to not quite close. This is very dangerous, as you can fire a Luger this way without complete action lock-up.

By the way, your 7.65 Luger should have a groove diameter of .312. The original DWM FMJ bullets were just at .309. Are you loading .314 bullets in your 7.65mm?


Sieger