I can see heavy LSWC or LFP, 300gr-320gr, for hunting really big game, but for deer, any decent bullet from 180gr-250gr is more than enough. The Lyman Dev, about 250gr, would be a good choice. I had mine modified to cup point instead of HP. About 270gr, expands really well @ 1200fps & penetrates enough for an deer or hog shot, any angle.