you really can't go wrong with a marlin, marlin/ruger, chambered in 45/70 or browning BLR 450 marlin caliber rifle.
the vast majority of the big game I hunt has been in rolling hill, and aspen or conifer filled canyon country where shots over 150 yards are very rare!
I've used both cartridges and rifles on and off for several decades, I purchased my first marlin 45 /70 in the late 70s and my BROWNING BLR chambered in 450 marlin in 2000,
I've found the hard cast gas check 350-400 grain bullets, or jacketed bullets of similar weight, work very well in either rifle.
the BLR has consistently had marginally better accuracy, but nothing you hunt or you will ever know any difference , I just sight in to hit 3.5" high at 100 yards and go hunting, its proven to be devastating on ELK and hogs and a few deer.
mid range powders like IMR 3031, H4895 and WW 748, and imr 4064 have all proven to produce good accurate loads,
I might be in the minority but I prefer the BLR, over the marlin as its a tiny bit more accurate and to me just feels better in my hands.



https://www.accuratemolds.com/bullet...bullet=46-405B

btw
50 grains of IMR3031 under a 405 grain weight gas check bullet (linked)and a 215 fed primer in my 450 marlin chambered BLR has proven to be exceptionally consistent and accurate in my BLR