I've got a .30-06 that will ONLY shoot the 180gr PP Partition. And I mean ONLY!! Anything else I've tried in that thing makes me want to wrap the thing around a post! I tried Accu's, Interlocks, interbonds, SST's, GMX's, Barnes TTX, Speers, and had just about given up and made a fence post out the dang thing. Couldn't get anything better than a 2.5 inch 5 shot group and that was with the Accu's. Loaded up a round of those PP Parts. and got me a 4 leaf clover with a center hole! I have a couple of pretty particular rifles but DANG this thing drove me flat out bat crap crazy! If it wasn't a pre 64 Mod 70 I wouldn't have worked so long to find a winner.