How so?
But that is an option, at least a year from now (giving Ruger some wiggle room to get Marlin back up per them by late this year of 2021), just do not bother with a .44 Magnum and jump straight to .45-70. The .45-70 can be loaded from 900 FPS to whatever pushing ginormous bullets with easily twice the FPE of a little bitsy little ol'. 44 Magnum. The HMS "Cowboy" is about 1300 FPS with a HCL 405 grain bullet replicating the buffalo loads of yore and the recoil is pretty mild.
The reason there are so many cartridges and so many types of rifles is that everyone has unique or at least personal reasons for choices they make. That being said, up against any sort of critter that bites, claws, stomps and eats people for crunchy fun and sport I will take my Marlin Guide Gun and +P bear loads over any .44 Magnum revolver, not even in the same class. Let's see, let me drop my 3,000 FPE rifle and grab my 1,500 FPE revolver, why?
There is also the Ruger American bolt gun in .44 Magnum, and you might look at some of the new .350 Legend bolt guns like the CVA Cascade for example. The recoil energy of a .44 Magnum is in about the same range as .30-30. A Model 336 Marlin is a good investment and is in many parts of the world for decades the deer rifle. And a Marlin .30-30 (and possibly the bulky Henry) is a more svelte (than some break actions and bolts), multi-shot capable rifle with a 200 to 250 yard range if needed.