I use a .270 for deer. That being said my next rifle will be a scoped 30-30 with see through rings. In my experience iron sights are better at under 100 yards. The see through rings make it so you can use a scope for a long range shot but still be able to use the rifles iron sights if you stumble across a buck at close range. Nothing worse than missing a 20 yard shot because you can only use the scope and you didn't compensate enough for such close range.
"Suck on my machine gun" (Ted Nugent)
Originally Posted by Fishslayer
"9mm is for killing Europeans. For truly dangerous people you need a .45."