Today I shot some Crosman red flights , and some Gamo red fire pellets out of my M4 .177 multi-pump. It was a bad experience I can't believe how these pellets preformed. Very light , so higher speed , but awful accuracy. Have you ever filled a balloon , and let it go they fly all over the place just like these pellets. I have learned the good ol lead pellets design is , so much better for my little pumper. JamieUK I took 4 years of machine shop in highschool , and the details of your work is quite beautiful.