If you set up your rifle to take the correct detachable mags something like 2.990" MDT minus center plate, will feed through a standard Rem short action...available on line everywhere.
With a little inletting on your part, presto you too, can have the same setup.
This will help with the 200 gr and heavier to seat out past the ogive.
These are 208 Bergers at 2700 fps in $600 rifle build with a new Bartlein 5R 9 twist 22" barrel, bottom metal, magazine, and muzzle brake ....used parts on a trued Rem 700.
The rifle was a previous factory Rem LTR, with a shot out barrel.