I have a 98 action with a 24" 03 barrel on it. I also have a sporter stock I want to put it into. When this mod was common, it was SOP to have a band that went around the barrel, with a threaded female rectangle on the bottom of the band that excepted the forward action screw. I need one of those bands. Please let me know if you have one or know where to get one.

Also: When the chamber was changed from 30-06 to 30-40 it left a ring about 1/3rd the way up from the rim. After I fire a round, I see the ring on the brass. The mark stays after I resize the brass. It seems that the chamber is just a little bigger at the base than a standard 30-40 should be. But like I said it does not size out. Whaddya say? Am I asking for a head separation if I keep using the brass? Should I just neck size the brass and be happy? Is  this common when going from an 06 to a 30-40?