These are available only with barrel purchase and will be discontinued when HBBS ammunition is available. HBBS 410 Uncrimped Compressed Loads General Instructions HBBS 410 Uncrimped Compressed Light Load Data 1250 fps HBBS 410 Uncrimped Compressed Heavy Load Data 1500 fps HBBS 410 Roll Crimp 1200 fps HBBS 410 Star Crimp 1085 fps