I have a Ruger 22/45 and it works great . It does have some issues with some ammos . Anything CCI works great . Federal not so much . I've noticed if the bullet is loose in the case what ever ammo it is , It will have feeding problems .There are some ammo's out there that you can move the bullet 20or 30 degrees back and forth . Yea like those are going to feed well ,I think not . All CCI are solid in the case and I never have a problem with them .
Now on the other hand I also have a Jennings Model ----something . It sucks so bad I don't even care to Know what its called .It's a semi auto and has a 7 or so round mag and its very small ( smaller then a wallet ). Im lucky if I get 2 shots off before it jams .