I have brand new ACIS Detachable bottom metal for savage short action for 4.40 action spacing. Comes with 10 round 223 ACIS magazine. Paid over 260.00 for it would like to get 225.00 shipped. Lisited on mutiple forms first PM takes it gets it.
It should fit just fine you may have to trim the inlet a little with a dremel tool but other than that it should fit fine. You can get a magazine to fit the 243-308 cases and I believe all ACIS magazines are interchangeable between all rifle models so you could sell the 223 magazine or buy a 223 barrel and switch between it and your 223.