So far none of the above.
well, its definitely a round body with a Rem trigger.
Is it a production or semi-production?
Rem. 700 converted "slightly". John303.
It would be pretty close to one of a kind.
You are so close it isn't fair to keep you in suspense any longer?
Of all things it is a LH 700 that has been extensively reworked by Butch Searcy. Including, as you pointed out, that lug being welded to the bottom of the receiver ring.



























