Hiya I'm shooting a BSA super sport in 177 reAlly good gun but I'm finding it hard to find a good pellet for its i tryed spitfires and I can get good groups so I fort I buy sum good pellets I got sum acupell and they fire all over place so It's put me off buying any other pellets I no spitfire is a crAp pellet I wounded if it was wait diffants any help plz