Take a look at East Ridge Guns "State Arms". They utilize a Shell Holder bolt, and are very accurate. I have a highly modified "Shorty", the only original shorty parts are the action, bolt, trigger assembly.
It is bedded in a Manners Carbon Fiber Stock. Has a 34" Federssen Chrome-moly Barrel, with an Armalite AR-50 Brake. It also sports a 30 MOA Steel 1913 Rail, made custom by State Arms.
Best group so far at 1000 yds is 2.438" shot at the FCSA WC this year. I like the stock chassis it comes in, but I'm disabled and unable to shoot from the prone position. So, it is made into a Bench Gun, and I shoot it in Heavy and Unlimited Classes.
I'd post a picture but cannot find a way to upload it here.