I'd buy a collection of high and hyper velocity rounds and see what runs best myself.
CCI mini-mags, velocitors, SGB, etc
Federal makes some hunting stuff
Aguila makes some screamers, not sure if they'd be happy running in a Marlin60
If it were me, the words "Remington" and "rimfire" don't go together, either, but I've had too many sour tastes left in my mouth by Remington stuff to even consider trying their better lines.
The answer to your question lies in a big pile of ammo, not on the 'net, go forth and increase your ammo stash, then expend some of it!