Encores are made to take high pressure cartridges only if the cartridge diameter is less that a given amount. The larger the case diameter, the lower the pressure has to be. The 416 Rigby can be chambered in an Encore only because the pressure is relatively low. For instance, some custom barrel makers will not chamber most of the the Weatherby cartridge line or the "short magnums" because of pressure and/or case diameter concerns. I don't know exactly where the 7mm STW fits in but J. D. Jones of SSK Industries could certainly tell you.RicMic said:What would be your main concern about the 7mm STW?
Well, actually, the 7mm STW is the only choice I have. You see, some "gunsmith" reamed a 280AI chamber in about 0.050" too far and now the 7mm Rem Mag and 7mm Weatherby Mag will not clean-up the chamber. And because the chamber is too deep the brass stretches too much and separates. I suppose that the brass could be made to work by pulling the bullets and re-seating them so the base of the case is flush with the end of the chamber. Would that make the new round a 280AI Improved?Grumulkin said:If a 7mm STW isn't possible, a 7mm Remington Magnum certainly is and should get you almost as good velocity.