Thanks for all the info! Ive been doing some reading. Think I might keep it. Its a beautiful gun, seems like I can be accurate to 150 yards and its good for any big game in North America. Perfect brush gun! Only downfall is the Ammo is pricey...
I own 2 of the exact marlin .444's like yours and one of the win. ported short barrel guide model. I have always hand loaded my own ammo and have a very good reliable load worked up they love to spit Hornady 265gr FP's. I have no hesitation to take a shot out to 300yds on any big game with my .444 and load. I can punch 3 leaf clover holes at 100 meters and keep less than 2" at 200 meters that about 220yds. My load is pretty hot but still within limits. I zero 4" high at 110yds and It smacks dead on at 220yds.
I have shot deer and elk with them, contrary to most people's chatter it does not blow massive chunks of meat away. I have shot elk in the vitals punching thru ribs on both sides dead center of the bone and it looked just like a perfectly clean 1/2" hole like it was done by a drill, that was at around 75yds. Also people tend to over dramatize the the recoil......"Oh!!! No!!!" look it's it's a big bore it's gonna hurt me!!!

As far as range is concerned? Consider how many people hunt with the .44mag pistols with scopes ect. Most of them have no problem shooting out to 100yds+.....well the the .444 marlin round is basically a .44 mag on roid rage
For sure you need to keep the gun and love it especially in maine.
Never ever underestimate the power of the lever guns.
There an old saying about the lever action " It's killed more deer and *.......* than any other.