I think the Anshutz guns beat it by a ways, and they are availible around $800.  The Savage would be my recommendation too, but FYI I bought one and then learned the trigger only drops to 2 lbs, and other savage triggers as low as 2 ounces.  So it's a type of accu-trigger, but it's not the varmint or competition accu-trigger just the std.  

I used to have an Anshutz 64 with the trigger adjusted so low I could tap the butt-plate on the ground and the firing pin would drop if the safety wasn't engaged.  That rifle consistently grouped 5/8" with 5 rounds of Federal Champion brick ammo at 100yards (no suppressor)

My brother has a CZ452 that will do 1/2" at 100 with a Checkmate QD on it.  He uses some spendy odd brand premium target ammo that he says is the best.  

My 504 with Lilja barrel I only briefly fired, but on that occaision immediately following zeroing, I put 3 rounds of subsonic target ammo into on hole measuring about .311 edge to edge at 50 yards, punching the X out of a NRA smallbore rifle target with a Checkmate QD.  I didn't fire 2 more rounds because I didn't want to see it open to something slightly more mundane.  That's like .09" CTC.  

My savage is a 22magnum and I haven't had time to take it out and accuracy test it.

All the above guns, except the Anshutz 64 were ADCO threaded.  

In your price range, go with a Savage.


If you want to spend a little more, look at a CZ or Ruger 77/22.