If the Revere is like the Regal design, you can adjust the hammer spring tension for more or less preload to adjust the velocity. Here's how.
Remove the action from the stock by using a 5mm key in the screw underneath the stock. Make sure the Revere has no pellets in the magazine or chamber. Cock the action using the sid elever and then click the safety on. Insert a 3mm allen key in the hole in the rear of the action behind the safety and feel when it is place. With the action upside down looking in front of the trigger guard, turn the 3mm key until the set screw appears in the opening on the hammer. Use a 2mm allen key to loosen this set screw partially until turning the 3mm key in the rear of the action rotates the set screw until it is stopped from rotating in its slot. Do this carefully so you don't lose the set screw by loosening it too much. Now you just turn the 3mm key in the rear which is shortening or lengthening the striker travel. This adusts the velocity. I suggest working in 1/2 turn increments, taking note of your starting point. Each time you make an adjustment, don't forget to tighten down the set screw to hold your setting. Check your results with a chronograph and fine tune your velocity in smaller turn increments once you get in range of your desired pellet speed. It's very easy to do once you get the procedure understood. It's not as easy as adjusting an FX but it is not that difficult to do. Hope this helps.