Rem 783 and Savage barrel
Picture of a friend's Remington 783 with my McGowan barrel installed. The Remington didn't have the correct bolt face, it's a .308, and the barrel was a .204 Ruger. I didn't see any reason why it wouldn't work with the correct bolt head. The Remington doesn't have a pinned recoil lug so you would need to hold it in the correct alignment. I used a model 700 type lug jig. The Savage barrel nut wrench fits the Remington nut perfectly.
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