I've had bushmasters and colts. I've also had Norinco's and Yugo's. Personally, I prefer the Kalishnakoff action. The AR's like to stove pipe under rapid fire. Also, rainy conditions can act as a catalyst for that. Go chineese or russian AK and load it up with wolf ammo and go have fun.

I don't want to hear about tolerances either... I can iron sight a AK at 100yds and still have a good grouping.

If you want target shooting neither of these would be my choice. I'd go with a 308 FNFAL.