I saw that too on my .22 FX Hybrid slug box. Am waiting patiently as a slug from a .177 would probably give us a little more range and lessen the effect of wind. In the meantime you can get .177 slugs from NSA and Griffin. NSA slugs are less expensive than both FX and Griffin. Griffin has a very, very wide selection of types and weights in .177 & cost a little less than any present 100 pack of FX Hybrids. (120 Griffin vs. 100 FX) I have both Griffin and NSA and am still trying to find the perfect .177 slug. I put a .22 barrel kit on my .177 Crown & haven't messed with it for a while. My .177 Streamline shoots pellets lights out but hates any slug as was warned about and expected.