There has been numerous discussions on the merits/demerits of 223 on deer in the various forums. IMO a 223 is ok for an experienced shooter who will wait for the right shot or take a pass. For a rookie, I'd go with a bigger caliber. My own experience with a younger recoil sensitive shooter who is getting ready for his first deer season this year, and watching his shot placement at the range, tells me not to let him carry the 223. Instead he'll be packing his 7mm-08 loaded with 140 grains. If recoil is a concern at the range (it won't be in the woods), there are many good options to tame a rifle for smaller/recoil sensitive shooter.