Well, a few nights ago, i thought I’d made a big discovery, turns out i was wrong! I unknowingly “pre-ordered” a 700mm slug liner thinking they were in stock. Along with 400 slugs of different types, and well, after finding out my liner wouldn’t be here until after the new year i had to do something will all of my new projectiles so i ran them through the standard STX barrel and boy..... was that a bust! After seeing many questions on here asking about if they would perform through the STX, my answer after testing is no. At 35 yards, i don’t think I’d bet on any of the 4 to hit a coke can every time. BUT, i will say i didn’t change any settings on my gun because the JSB’s are pounding. So maybe someone else can try it out and bring better news to the table, but for now, it’s going to be pellets until the slug liner arrives!