Last spring I got a stainless mil-spec Springer .45 and love it. Have not had a single ftf yet. I have used Wolf, S and B, Remington, Ultramax reloads and WWII surplus. The WWII surplus sometimes needs to be fired twice, but has always gone bang the second time. since it is probably ultra-corrosive, I would advise against it unless you religiously clean your guns thoroughly after every firing. I got the stuff for like 5 bucks a box but will not buy it again, even though it does seem to have quite a bit of pop. And of course, it would be useless for home defense since one out of every 10 rounds has to be refired to go bang. I will also never buy American brand ammo for any of my guns ever again. That allegedly Miami made ammo is junk. All in all, the Springer was recommended by my gun shop over the new and more expensive Colts he had to sell. (I consider him to be quite honest as they also recommended the Henry .22 rifle over the Winchester .22, losing a more expensive sale but reinforcing in me their reputation for honesty.)
Recently I used a hammer and drift to move the Springer's rear sight a bit. Mine was consistently grouping some 6 inches left at 15 yards and I bench rested it to make sure. Have not fired it since moving the sight a tad- but should still be more dead on then it was. I was also firing low, but not when bench rested so obviously that part of the problem is ME.