I have the 6-7/8" Hunter. Wow, have those prices jumped!
I use an ATN red dot on it. The gun is (as I guess all are) better than me, too. This one is superb. I can live with the takedown quirks.
As with any firearm (and, it seems, especially .22s) your results will vary from ammo type to ammo type, and depend on the target distance, as well.
Lapua Midas is ludicsrously expensive --- if I could afford it, I'd buy about 100k rounds. In my Ruger, this stuff consistently --- from a sandbag --- shoots tiny groups; frequently one hole, at 50 feet. Eley Biathalon Match, and a couple of other Eleys, are close, shoot a little more open, but not much, cost less. Again, in mine, Federal Premium Gold are the best for the bucks. Of course, shooting off-hand will show you the difference between you and the gun.
AT fifty feet, I don't find the higher-velocity stuff either necessary or as accurate: Aguila SuperMaximums (insane velocity), Stingers (up there), Velocitors (also up there), YellowJackets, Thunderbolts. If you're hunting or varminting (I don't, but would like to), or you're shooting 50 yards or more, you might want to check the "zippier" rounds.
When I say 50 yards or more, that's not being overly-optimistic. I've used a Bushnell 3200 on this thing. Holy smokes! With a rock-steady rest (any kind of rest), I think squirrels or rats at 50 or more yards would be toast.
I'm yakking too much. The thing's like a baby-baby carbine. Spend a month with it, you'll rapid-fire everything into a 3" bull at 50'. Off-hand. Enjoy!
PS
I put Hogue "fingers" on mine. I have thumbrest grips, etc., but I like the grips for
my hands. Looks neat, too.