RE: .22 ammo...Is it all the same??
The .22 bulk federal for me works well, no jams, very few duds, maybe one or two out of 550 rounds. Not very consistent though, the powder charge seems to vary and you'll notice one round may not be as loud and the point of impact will be lower.
The remington I haven't shot enough of yet, so far feeds reliably for me, but my model 60 marlin seems to shoot everything, still some consistency issues there though.
CCI minimag hollow points in my marlin 60 shoot very accurately, thats what I use on squirrels. I try to shoot only jacketed bullets, no wax coated lead bullets.