there is a new style and an old style #60, the old style is 22lr ONLY.
i don't know much about the new one, if that's what he has...

on the old one, cycling the action manually is not going to help. you will still have to dig some (if not most) of those empty cases out. low power "quiet" ammo just doesn't have the power to push the action all the way back. when it snaps back forward, it tends to crush them in place like pop cans.

i also try to avoid cheap "dirty" ammo, mine gets gummed up pretty fast from that stuff.

trust me, get yourself some cci mini-mags...
gander mountain had a good deal on them recently. i don't remember how much, but i stocked up while i had the chance.