Mine tightened up with factory jacketed ammo too. Sold it before buying jacketed .44 bullets. I wanna say I was using plated or cast, tough to remember.I have a more recent 44mag R92 that has the “CBC” roll mark on the barrel. Mine has the same issue as Ark’s in that the bore diameter is oversized and cast bullets tumble when shot. I fixed that issue by switching to jacketed bullets and it shoots great now. Mine also has a slight cant between the barrel and mag tube, but that doesn’t seem to affect accuracy.
I’d still buy a Rossi even with the mentioned issues, as they are more cost effective vs. Marlin/Henry. I use mine in the woods, which means it will have scratches, dings, and dents. I’d hate to do that to something that is +$1000.
Bought a Henry 45LC and it was a major trade up, except no vertical eject.