09-04-2013, 02:52 PM
If the gun is not a pristine collector's piece and you just want to shoot it.
Consider having the barrel drilled and lined with 22 barrel liner.
It gets drilled with a long piloted drill, a 22 barrel sleeve gets soldered or epoxied in.
Then the barrel gets chambered and machined for any extractor cut-outs and such.
The firing pin will probably work as is.
Or, perhaps you could make up sleeves that adapt to fit a .22 rimfire into the 25 chamber.
It would be a pain to pick them up and re-sleeve though, I expect they would be delicate.
Consider having the barrel drilled and lined with 22 barrel liner.
It gets drilled with a long piloted drill, a 22 barrel sleeve gets soldered or epoxied in.
Then the barrel gets chambered and machined for any extractor cut-outs and such.
The firing pin will probably work as is.
Or, perhaps you could make up sleeves that adapt to fit a .22 rimfire into the 25 chamber.
It would be a pain to pick them up and re-sleeve though, I expect they would be delicate.