I have a rifle that was built from a .270 REM700 donor action. It was built for F T/R in .308. Currently, it is a single shot with the floor of the action bonded. The stock is a McMillan A4. I was wondering if there is anyone that makes a long action magazine that is design to carry the short action .308 cartridge (I realize that if there is, it will be a specialty item and may not be readily available). If there is, who makes it and what bottom metal would be required for its use. I did a search here and only came up with one thread but it wasn't very useful. I would greatly appreciate any help. Thanks!