Hi Larry, Saw your post Mark They are fun gun . I have a striker like yours . I have short barrels 22-250 7-08 308 223 and 6 BR All my small skank savage barrel's fit. Sounds like you a Striker expert! I found a striker I would like to buy. It's been rebarreled without using the barrel nut. If I wanted to swap out the barrel could I and use barrel nut?