Re: deer and shooting range caliber?
Since you are talking use of a bigger rifle for elk and such I would go a little smaller than many have recommended. I've shot a couple of dozen deer with my Sako 6mm Rem. I've shot them broadside, running away, in the head, behind brush from 2 yards to 200 yards. Killed them all with one shot using 100 grain Sierra Game Kings. I have also taken the rifle after p-dogs with 75 grain Hornady's. It is very accurate and has a 65,000 psi max pressure which gives added flexibility to the handloader compared to say the 243 Win.