RE: How accurate do you feel you need to be?
Now I want 1" or better at 100 off the bench. I know to 100 or so offhand it just isn't a problem making a shot, but I always try to use a lean or some rest if possible. I hunt on the ground exclusively with elbows on my knees&feel very confident. I also use home made carrybi-pods for areas where elbows on the knees doesn't work as well. (stoney points access. also work and are easy to tote).
This works for me but each individual should evaluate their rifle, skills and situation to come up with what they feel they need!