Yep lots of guys use them. They dont need to be driven hard either IIRC. The jacket is fairly thin and a lot of 45/70 data/bullets are a good match for ML speeds.

This was some data i found comparing a few 45/70 458 bullet jackets.
Speer .030 estimated because its bonded
Sierra Pro-Hunter FNHP base: .020 tip: .018
Barnes Original FN .045 Barnes SS .032
Hornady HP base: .020 tip: .015
Reminghton HP base .020 tip: .015

Use a MMP Orange or a Harvester black crushrib depending on your bore.