My current choice is a bit odd but worth a thought.
RRA ATH in an 18 inch barrel without the flash suppressor (I think NY style).
Gives you a very nice target rifle, reasonably short and RRA has a great trigger and can get the chrome bolt group for easier cleaning.
You can upgrade the stock and it has good rails where you need them but also a great hand grip. 3/4 MOA guarantee with match grade ammo