Originally Posted by boren93
You might as well buy the velocity reducing shells.
An easy fix yes but they don't leave you with adjustable fps.
The power-down shells reduce the velocity by over 50% which means you'll be shooting anywhere from 200-250 fps depending what length barrel you chose.
Originally Posted by ljohns35
So I put in some rubber and metal washers on the hammer spring. If my theory is correct then the more tension on the spring, the lower the fps will be? correct?
Really?... On second thought maybe you should just get the shells, it will be much simpler for you.