I just purchased a used redwolf on here and received it yesterday, shot it all day yesterday using jsb 18gr and loved it, accuracy was awsome, took it out today shot the same pellets for awhile then i decided to try some slugs because i heard they do well with them, so i proceeded to try the fx hybrid 22g slugs shot 3 round and terrible groupings then on the 4th shot it was a loud pop, shot another one and same thing. Is it a blown breech seal? i hope its something simple like that because if its not im going to be pissed.