Bubba'd or customized to fit his needs.
Original stock more than likely too much drop to be useable with a scope, then scopes weren't the scopes we have today, see through mounts were common since fixed 4x or 6x scopes had quite narrow FOV's and slow target acquisition, prone to fogging and see-thru and swing aways were very popular. Remember they were FREE bring backs no matter how fancy they were.
My ex-FinL had a beautiful commercial Mauser built in Germany, octagon barrel, double set trigger, nice walnut stock with cheek piece that he liberated. He got home and decent hunting ammo was non-existent for the rifle, he wanted a scope. So it received a Buhmiller barrel in 250-3000, D&T'd, he bought a beautiful piece of presentation grade walnut from Herters and had it custom stocked and hunted it from 1950 to 2015 when he died, so was it Bubba'd or was it a donor for custom rifle?
