Mine is a winchester instead of marlin, but ...
Yeah, Hornady 220 grain flat point and RL7 shoot at least as well as I can see iron sights. Max charge was listed at 37 grains I think. Even with a drop tube I wasn't able to get past 36 grains and I may back off to 35 just for ease of loading, accuracy is under an inch at 50 yards from 35 grains up.
Tom
