Here are my picks. This will mainly be used for longer range at least up too 300 or 400 yards. Maybe for hunting but also for range shooting, either one would use a scope at least at 4x both semi-auto. Ammo price doesn't seem nearly that bad for the difference of .308/7.62 x 51mm or .223/5.56mm The main difference I have noticed are AR15's are significantly cheaper than M1A's but I am leaning towards an M1A because it could be used at semi-long range and a lot further ranges. Also the difference between AR 15's and newer M14/M1A's particularly the SOCOM's and the SOCOM II's besides the ridiculous amount of modifications you can put on AR's and M14/M1A's picks? Choices? I love my .22 semi-auto to death, but I wanted a larger caliber that is semi-auto and ammo (even for how much it is now) that won't break the bank. Thanks.