Quote Originally Posted by Blue Avenger View Post
he has 2 long actions, thus the how long is a short action question.

Not having one handy, I can not give you a measurement at the moment. The mags will be made to fit .308 / .243 "2.80" overall length cartriges. 7x57s are in the "3.07" range. Port can be opened a bit, but mag length is fixed.
Going single shot, you would be mostly ejecting shorter empty cases.
Read over that. Thank you for clarifying.