Went to and shot my 30-06 yesterday to try something new. I got some Hornady 30c ( 308") 86 gr. sp/rn. . Put 60.0 grs. of IMR 4320 in. Shot it at 25 yds. and it looked good. But when I shot it at a 100 yds. thing went down hill. The bullet was braking up in the air before it was getting to the target. Had to be over 3800 FPS. I just never seen a bullet do this before. I'll just have to slow it down.