I bought a DEAD AIR SANDMAN K. It can handle up to 300 win mag, it uses a muzzle break adapter to attach the suppressor. you can buy more muzzle break adapters, install them on multiple rifles. Then the suppressor is a quick disconnect, it ratchets down tight on those adapters. This is my first suppressor, very short and light can. you can shoot a high power without hearing protection, but it still has a pretty good bark. They also have the S and L model which have more length and baffles, which should suppress the sound even more, but for a hunting rifle I opted for the shorter model.
bought it through a local dealer, that has a SILENCER CO. kiosk machine. I would suggest finding a dealer that has that machine, order it directly from SILENCER CO. Then go to that dealer, the kiosk will do everything you need to do, finger prints and apply for the tax stamp etc. Also definitely set up the trust, you can add people that you trust that would be allowed to use that suppressor.