There may be others but in my opinion the Tikka T3X is hard to beat especially in the heavy varmint model.
Pluses: Smooth action, excellent extractor system, excellent factory trigger, stock is stiff enough for precision shooting, out of the box accuracy with tailored reloads sub 1/2 moa (at least mine is).
Negatives: None
Improvements: Not crazy about the polymer magazine - had one on a Browning X Bolt wear out after one season of heavy field use but maybe Tikka's are better made - time will tell. Would like a three position safety to unload on safe. Would like if they offered the 12" twist 223 Rem in the US since I like to shoot 50 and 55 grain bullets for varmint and predator hunting.
I don't understand why you feel the need for a 12 twist for 50 and 55 gr bullets. I have two Tikka t-3 Sporters, one with the 1-10 twist and the other with a 1-8 twist, and I primarily shoot 40 gr Nosler BT or Hornady V-Max and they both will shoot 5 shots into a half-inch 100 yard group. A few years ago I had a 1-12 and it shot the same sized groups with the same bullets. - never an issue.
Actually it should be easy to pick up a T-3 with 1-12 twist easily since the tactical crowd has convinced everyone that it is not cool unless your rifle has a fast twist to shoot heavy bullets.
drover
P.S. - to the OP,
Just buy a Tikka and save yourself a lot of time, money, and frustration in trying to find something else in the under $1000 market that will shoot as good as a Tikka that only requires mounting a scope on and you are ready to go.