Gary Reeder
a couple of companies have done them but
Monday, March 14, 2022, 11:01

as in most switch barrel systems they work loose after a few times switching barrels. Years ago Browning came up with a take down system on their 22 rifle that worked until the 4th or 5th time you took the gun apart, then it became loose.

We came up with an idea for one in an XP-100 a few years back using a screw in the side of the barrel thru the threads. We would screw the new barrel in until it locks in at the end of the threads and using a large screw thru the threads lock the barrel in. It worked OK for a few shots but the recoil battered the screws and after maybe 25 shots the barrel began to wobble. I am sure it could be done with a better system than the one we came up with but every switch barrel system I have seen has had the same problem.