I've owned both the .348 and .444, in addition to the .45-70.
As far as trajectory, the .348 is a laser compared to the .444 and especially the .45-70.
All are bone crunchers on big game. I sold the .348 and .444, not because of the cartridge but more due to the platform, my .45-70 is a Guide gun and is simply better handling than the other two rifles were with the longer barrels.
That M71 Browning Repro shore was pretty, too.
Everyone is different. To me the Win 71, 348 has a balance and ergonomic design that makes my own guide gun feel as handy as fence post in my hands in comparison.
