I see all the time that people say "pick gun XXX because you can run 35 gr to 80gr bullets or you can run 100gr to 220gr bullets". I also see "I use 150gr bullets for XXX game and 180gr bullets for XXX game". For all the guns I shoot I pretty much find/load a round that works well in my rifle. i adjust my sights for that round and stick with it. So the question is how do you guys that shoot several different rounds in a single gun stay accurate and proficient with it? Do you have dope charts? Do you actually see a difference in game when using different bullets? Why not just use the heavier bullet all the time. I can understand if you normally run 150gr 30-06 bullets for say deer but one year you decide to hunt elk so you load up some heavier bullets, go out and sight it in with that. Then if that was your infrequent elk hunt going back to your "normal" load.