I thought about that after i went to bed, forgot to mention bullet weight. They are 180s I believe 4.5gr. Is o. The light side. I think I saw 5gr listed as med./high? Swc22 you can shoot lead through stock glock barrels I bought the lone wolf to prevent bulged brass from factory loads. It seems that factory loads are full on power, the tighter chamber of the LWB prevents ALL bulging.