Originally Posted by
oling
The Umarex S&W 586/686 revolvers are capable of .25 calibre conversions. It requires some drilling of both the breech and the mags as well as a custom threaded barrel but it is doable.
No offence, but why would you want to? My CO2 pistols in 177 push out the pellets less well than any of my old Webley pistols in 177/22. as someone else said, you might as well throw the pellets at the target.
Webley Mk3 x2, Falcon & Junior rifles, HW35x2, AirSporter x2, Gold Star, Meteors x2, Diana 25. SMK B19, Webley Senior, Premier, Hurricane x 2, Tempest, Dan Wesson 8", Crosman 3576, Legends PO8.