Got a 6.8 SPC on a Model 10. Not much info about the 6.8 on a bolt gun so I built one. Most everything on the AR platform. And I couldn't see rechambering a good AR to 6.8 so I stuck to the Savage. I single feed so no feeding/extraction issues. Never considered loading from the mag. Maybe single stack? Open up a bolt head, spin on a chambered barrel and go shooting.
Went with the SPC chambering rather than the SPC II. Shorter throat so I could jam my loads. Five shot group from the bench at around 1/2". With no scope adjustment and a little holdover, ringing steel out past 440 yards with ease. BIG bullet selection available but I start out lite and go heavier as the throat wears.