I think this information is out of date. Last I heard they had changed to solid copper slug, as the bismuth/tin core didn’t handle heat well. Which is good, as bismuth is incredibly rare — nearly as rare as gold. Uranium is over 100 times more abundant.
Anyone want to set over/under on M4 feedramp life with steel tipped ammo?
July 2nd, 2010 at 10:17 am
At the price of tin and bismuth, those are going to be pricey.
Stranger
July 2nd, 2010 at 3:07 pm
I think this information is out of date. Last I heard they had changed to solid copper slug, as the bismuth/tin core didn’t handle heat well. Which is good, as bismuth is incredibly rare — nearly as rare as gold. Uranium is over 100 times more abundant.
Anyone want to set over/under on M4 feedramp life with steel tipped ammo?
July 8th, 2010 at 2:47 pm
Anodized aluminum is harder than steel.