I have a friend that wants me to swap barrels on his 30A. He wants to convert it from 30-30 to 44mag. Will an 1894 Marlin barrel fit a 30A action? Are there any problems that will need to be addressed if we try this? I have built several Mausers, reconditioned both M1 Garands and carbines(in the late Eighties and early Nineties), so I do have some experience, but this will be my first Marlin. Thanks in advance.