I have savage, remage, winage, howage, mossage and mausage in the safe.
All but the Mauser, the barrels come from Columbia River Arms/Black Hold Weaponry. The Mauser barrel is from Troup Systems.
Remage is nothing special, just a .308 I literally never take out of the safe, much less actually shoot. Don't remember where I got the barrel nut.
Winage is a Win M70-post. I believe it was the first post-70 Winchester to get a barrel nut system. CRA used my original M70 barrel as the template. It's a 7mm RM. CRA/BHW barrel nut.
Howage is a Howa 1500 converted from .308Win to 6XC. McGowan barrel nut.
Mossage is a Mossberg MVP varming .223. I just burned out the original barrel with bimetal bullets and abuse so I replaced it with a CRA unit with a PTG barrel nut.
Mausage is a Swedish Mauser m38 converted to .45ACP with a Troup Systems conversion including their own barrel nut.