hi paul you would have to change the thread bush cost about £25 fitted contact jakson rifles 01644470223 our your local gun smith. i wll let you have it for £180 to go towards the cost of a new bush.
Hi am looking for a set of ruger high scope mounts in 30mm to take my scope of 8x56... its for the 77/17 varmint ..the rifle comes with 1 inch mounts ..........hope you can help