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.
