Easy..:mk12. Tho, since I am a purist, I vote to go with the "real" thing from high caliber sales or maybe centurion. The 1:7 stainless barrel from Douglass is quite awesome. I'm far from the best shooter and squeezing out 1/2" at 100 and less than 1" at 200 yards has been relatively easy.

I suppose I an biased, but I also feel the contract mk12s look better than the custom jobs....just my opinion.