Hi there i have had a few guns, so here is my thoughts for you to consider. Personally first of all you need to decide what the gun will be used for !! what type of vermin are you wanting to shoot. Do you have to carry it long distances, how often are you going to be using it, and so on... I absolutely love the bsa scorpion T-10 tactical stock, multishot give you the chance to take a follow up shot quickly, in the event of wounding the target. I have had both the .177 and .22 . The .177 gives you a flatter trajectory and slightly increased range, the .22 having a larger cross sectional area gives more stopping power, but at closer range. You can pick up these models reasonably cheaply, i have just sold the .22 gun on its own for £300. Hope this is of some use to you
regards
Jon