Years ago, I bought a bucket full of pulled 30 cal. hard ball bullets. Have finally used up almost all of the 150 gr. Have about 200, 165 gr bullets left. I would call them semi boat tail, hard ball. Only problem is, they are steel jackets. You can pick them up with a magnet. They are about 1.425" long. Will it hurt my old M1 Garand to shoot these bullets ? Or should I just dump them ? What were they originally designed for? Thanks Boomer