My HW55t is fairly Standard at <>6ft/pds, it takes approximately 15lb to cock nice and smooth, the barrel lock-up is tight without any movement even before engaging the lock-up lever.
It sounds as if someone has upped the power with an aftermarket spring, this puts a lot of strain on the barrel when cocking so therefore it can result in a bent barrel, although it can be restored to standard and the barrel straightened you really need to test fire the rifle before committing a purchase.
Lovely rifles to shoot in standard form, very accurate with very little recoil that, afterall was how they were intended to be.

DaveM.