Made it to the range yesterday for some more ammo testing. Fired some AE 55g FMJ, Nosler VM 55g, Hornady Superperformance 75g BTHP. Liking this rifle more and more with time. Nosler Varmeggedon still its favorite, but the groups from the other two seem to be tightening up after 160rds through it. No reliability issues and the ATRS mags I have work and look great. They dropped out slowly at first, but now fall freely. Only a 40 yd indoor range, no chance to do formal accuracy testing so won't report on that. FYI - I have the Proof Carbon barrel, haven't tried the ATRS brake yet either. Not really a fan of brakes in general, especially indoors. But should be just the ticket for gopher and coyote hunting!
Have previously used/owned XCR-L's, an M. Have unfortunately never owned an AR. While I love their ergonomics, the MV is more accurate in my hands. The trigger in particular is significantly better. Ergo's on the MV are good and I'm very happy thus far.
Last I heard, ATR was still playing with some prototypes in other caliber's. Really hoping they do decide to do a 6.8 (preferred as I have another rifle in this caliber) or a 6.5. While I like my bolt actions, I was thinking at the range yesterday that I do prefer shooting a semi-auto and would start using it for hunting if I could get it in a legal big game caliber. Will wait and see I guess. Once ATR decides if they will or won't offer other caliber's for the MV, I guess I'll have to decide if I'll switch to a MH in Creedmoor or be happy with my 243 or 7 mm rem mag.
I have a birthday in June, so if they happened to make a decision by then I could decide what I'm going to do
. Nudge, nudge...