I went for 25 caliber to 177 in standard, Just adjusting the hammer spring I went from 1200 back down to 900 FPSI thought the gun was going to shoot all over the place at 1,200 FPS with the JSB 13,43 gr pellets , It impressed me at 48 yards and a slight wind , It would take a sparrow every shot, shot count is just crazy high
Anyone want to trade a 25 caliber barrel for a 30
Mike