Love the .223 I have, use it for coyotes.....have not sighted in the .260 Rem yet, gonna do that this week I hope. 120 grain ballisitic tips and 120 Fusions......22llr has not fired much either but hope to get to that this next few weeks also.
All that being said, I have never fired one to see the groupings or cycled a box of rounds through one. All the reviews are favorable for the most part, and at the price it seems like it is a good value.
If you can find a Mark 77 in your caliber used buy it. I wouldn't sell mine for twice the price of an "American".
my 3 cents, mac