I have a Model 70 SC gun in 338 Win Mag. The mag box is too short for the COL I want to use. I've sourced an H&H length box, ejector, and bolt stop. I can't find a follower for the H&H box. I'm wondering if my standard mag follower will still work. I notice that it is already shorter than the standard mag box with the spacer, so maybe feeding will be okay. Maybe someone else has done this?