Father-in-law just gave me a Winchester XTR Featherweight in .257 Roberts AI. With the spacer in the magazine box, one is limited with SAAMI OAL. If loading higher bc boat tails, the bullet really has to jump to reach the lands.
So, I want to lengthen the action to accept loaded cartridges to the length of the parent case, the 7x57. To do this, would it just be replacing the magazine box with one for the 7x57 and installing the proper bolt stop?
Thanks,
Jim
