what size are barrel breech o rings in FX Royale 400 and 500?
also is there a best or long lasting brand?
The o ring in my 500,25 cal, is skinner than the one in the 400,22 cal, is this correct?
thanks
also is there a best or long lasting brand?
The o ring in my 500,25 cal, is skinner than the one in the 400,22 cal, is this correct?
thanks