I've also heard that as the bbl. heats up, the groups start to open up. However, based soley on my experiences shooting a Mini-14, I cannot say this is true.agalindo said:AR's are more accurate, from what I've read Mini14 barrels are too thin and once they heat up they lose accuracy.
Verm said:In the meantime, I would go with an AR. More options to fit what you want to do with it, more accessories if you want to modify it, much better accuracy if you want to do long distance shooting. You can build your own AR for a little more than $500 bucks if you do some good shopping.