MilGunsmith
Registered User

As an apprentice Toolmaker I had to make a pair of V-blocks that matched all with hand tools. The USMC 2112 Gunsmith school at Quantico makes you...

I was at that plant in 2008 looking at the problem. So brass produced before then up to around 2010 for the US Gov, stamped PMJ. They might have...

We had many M2 machinegun barrel extensions break due to excessive bolt thrust. This was caused by soldiers lubing the ammo before firing. The brass...

The Greenhill formula was originally developed around lead core flat base round nose bullets for big game. It will give odd results with boat tails,...