Quote Originally Posted by trajectory View Post
Just encountered a stuck BSA piston & was thinking about how I might go about unsticking it.

After removing the stock & telescopic sight i placed the action on a padded surface covered it with a single layer of fabric & then simply placed a hot water bottle over the area where the piston head would be. After 40min or so the piston could be drawn back with what seemed like normal effort. I don't know if this method will work in every case but that was much easier thsn I expected.

Had visions of hot water soaking, solvent blends & all sorts of of things.....
Was the hot water bottle full of acetone though

ATB, Ed