Quote Originally Posted by Hotolds442 View Post
I did some research, it looks like the 7STW is gonna be a little long for the magnum magazine. You're probably gonna need the Ultramag length action if you want a repeater.
Long actions are all the same length. STW/RUM rifles did have a longer mag box, which is no longer in production, and was still only 3.6" long.


Easiest solution(if you can't find a STW/RUM mag and/or 3.6" is too short), use a modified center feed mag box. Cartridge OAL of ~3.9" is possible without too much trouble.