Comment: Bought this ammo to support a nice handgunning weekend and was really looking forward to shooting it. But Locked up my cylinder almost every time. Tried it again on another revolver this weekend opening a different bag hoping for a better result, this was when shooting with a friend at his house, this locked up this other revolver as well. ...cylinder would not turn once again after shot 1. - That Saturday evening I hand selected out the most questionable looking rounds ( pressure lines in brass, dents in brass) . This removed about 20% of rounds of the next 2 bags. Again next morning I was still unable to shoot a single 6 shot drum... revolver locked up halfway thru the trigger pull. an expanded case was clearly obstructing the turn of the cylinder. Likely cause , using too many times reloaded brass. Company owner says its "the guns fault" says GP100s are "unreliable " ( snicker) and the dents i spotted in some rounds are FEDEx fault .. This allthat despite the fact that my GP has shot 100 s of trouble free rounds the previous weekend and then locking up with this ammo and his ammo only. My buddies ancient 38 SPC functioned perfect as did my newer Fiocchi 125gr. I was completely unable to complete even a single drill with this ammo This Ammo is badly faulty.. I have never experienced something like this before and to think I almost cached it.. Verdict.. not even nearly good enough to be training Ammo. Since the company is not taking it back I will give the remaining 960+ rounds to a buddy to pull bullets and powder for reloading.