Originally Posted by
BigDuncs
Judging by the tone of your question, my answer is not what you're looking for.
Both guns will out-shoot you so neither is easier to get good scores with - it's all down to how good a pistol shot you are although you will probably enjoy shooting and owning the HW75 more. (Unless you can do something better with the money you could save by buying Gamo vs a HW.)
But you will only achieve scores that relate to your ability to shoot. The choice of pistol is, at least, secondary.
Good luck, 10m pistol shooting is not easy.