American Rifle Company
Nucleus: All
Mausingfield: All
The Coupe De Grace can only use magnum case barrel chamberings. The smaller cases use a conical bolt head and barrel breech.

Zermatte Bighorn
TL3
SL3
Ti3
Origin

Aero Precision
Solis

Deadline
Ultimatum

Some folks outgrow Savage issues so there are alternatives if you have good barrels. If you know of another one let me know and I can add it.