Rossi, not made in the USA...repair times are LONG.
Marlin, Made in Ilion, NY nowadays...they moved from New Haven, Connecticutt recently.
SHORT repair times for the most part...and cheaper shipping.
Biggest thing that tells you which to buy...go look at an S.A.S.S. Cowboy Action Shoot...
95% of the top 10 at any given shoot will be using Marlin 1894C's.
If you take the time to carefully select your ammo for the best precision, Marlins Micro-groove barrels act like Match Barrels.
12-lands & 12-grooves makes quite a difference!
A gun should be a tool in the hands of a deadly weapon, not a deadly weapon in the hands of a tool.