When I still had a 30-30, a MArlin 93, I loaded most all with 3031. I did make some light cast bullet loads up with bullseye and I think red-dot. The rifle is long gone down the road.
I do load 30Remington for Model 8 semi auto. The charge weights are just about identicle between the 30-30 and the 30Rem,as they are betw the 32WCF and the 32Rem.
I use both 3031 and more recently H4595 in the 30Rem. Both work nicely with even the starting loads operating the action. Accuracy is what I expect from these old autoloaders the ballistics mirror their WCF counterpart cartridges.
One thing about the 30 and 32 Rem bores is that they are supposed to be about a .000 or 2 under standard groove dia (.306/7 as opposed to .308 and .319/20 as opposed to .321 in the 32Rem. I've never slugged them to verify on my rifles and never had any problems with either factory jacketed or cast.