Some have been made & they did not do very well for the most part. The case diameter is a little
too large relative to the frame size & high pressure reloads especially will cause the frame to stretch.
60,000 PSI for example in a 300WM case for example as opposed to the same pressure is easier on the frame of the Encore than the same pressure with the WSM, totally different because the belted
case is smaller in dia. & less back pressure. This same principle explains why the smaller Contender Frame does not except a belted mag.
TC makes it easy for us with the Pro Hunter offering. If you like the 270cal. then you can get the Pro Hunter with the 28" tube. Most 270WSM bolt guns have a 24" barrel & with the 270PH & warm
but safe loads you can be very, very close & do so with a gun that is the same length as a 24" bolt gun.