They call me scopewrecker at my club because I have gone through a number of makes and models in my time. Hawke always replace them without question. That 10 yr guarantee cannot be faulted. If the shop gets funny brush up on your Sale of Goods act!
I have had no problems on PCP's - it has always been on spring guns/gas ram and I used these type of guns more than other club members. I really recommmend a Dampa mount - expensive but had no trouble since using them. This is a mount that absorbs the recoil effect on a scope by the use of rubber bushes in the mount. JSR do them - 1 piece mount £38.95. You should always use a one piece on a springer in my opinion.
Steve
Floccinaucinihilipilificator.