RE: WHAT IS THE HIGHEST GRAIN BULLET FOR A 7MM08 ?
You can load any 7mm bullet you want. My Speer books lists 115 grain all the way up to a 175 grain. Now whether the rifle will shoot them accurately may be a different story. You just have to play around and find a load your rifle likes. If you have to shoot heavier 7mm bullets, you might be better off with the 7mm Rem Mag. (Never thought I would say that)