Welcome to the forum!
Regarding the feeding issues, it could be several things, but you should try replacing the magazine before you go any further. I like the Wilson 47D magazines myself.
A stock 1911 in reasonable condition should at least shoot into 4" at 25 yards. I suspect that your 1911 doesn't have as fine a trigger as your Ruger, and obviously it recoils considerably harder which may induce a flinch, so it will be more difficult to shoot well. Continue to practice and bring the target in closer while you sharpen up with the new gun. If you have developed a flinch, some ball-and-dummy exercises should help clear it up, and of course continue to shoot with the .22.