Again- one of those posts noobies should read and think about. "Hard" means nothing. Bhn doesn't really tell you much. Smacking it with a hammer give more info than Bhn IMO.Welcome to copper-enhanced alloy! Now, smash one of those bullets with a heavy hammer and observe the results. There's glass-hard and there's plastic-hard and the Brinell test is absolutely useless in determining which you have for the purposes of making bullets.