Hi

I bought a second hand .22 HW45 a couple of years ago and it has always sent out a light spay of oil when fired but it has been reasonably accurate so I let it be. Recently it has got worse and accuracy is suffering so time for a strip, clean up and re-lube.

Got the top barrel section off ok - then tried to undo the 2.5mm alen key bolt which retains the cylinder at the muzzle end. Got a good fitting key but have tried till the long arm of key starts bending but the bolt won't shift. I am worried that if I turn it too hard the hex in the bolt will strip then no way to get it out?

Has anyone have a solution to this problem - would some heat from a hot air gun be ok to try?

Regards
Zyg