It depends on what game you will hunt with it and what type of bullet you intend to use.For deer sized game 140gr or 150gr bullets work very well.They will also work well for moose elk and bear if you use a premium bullet such as a partition,barnes x,failsafe or grand slam.If you want to use cheaper bullets like factory corelokts or powerpoints you would be better off using heavier bullets such 160 gr bullets for elk,moose and bear.