October 3rd, 2016, 07:21 PM
Join Date: Aug 2015
Originally Posted by GardenValley
All T291 and M72 MATCH is non-corrosive.
A word about your LC 52 .30 Carbine ammo. If you do not know with absolute certainty where your ammo came from you may not want to shoot it. All U.S. GI .30 Carbine ammo is non-corrosive. Some thirty or so years ago the Chinese manufactured a quantity of .30 Carbine ammo and used the LC 52 headstamp to deliberately deceive buyers. The headstamp appears to be a U.S. GI headstamp but it is just a clever copy and the ammo is corrosive primed.
I pulled apart 2000 rounds of this stuff for the bullets. Not only is it corrosive I know of a couple of KB's from using this stuff, including a registered M2. Corrosive ammo in the short stroke gas system like the carbine is bad juju as there's no way to clean without busting the staking around the gas piston nut.
The dead giveaway on this stuff is it's packed in cheap grey cardboard boxes that look like they sat waterlogged for awhile then dried. The boxes are also stamped 7.62 instead of .30 caliber carbine.
Just my humble opinion: I don't think they copied the LC 52 headstamp to fool American shooters, I think they simply reverse engineered .30 carbine from captured Korean War ammo, likely for use in captured carbines used in Southeast Asia, right down to the headstamp.