You could create a wildcat.
Rebored and rechambered.
Fireform 303 brass to, 338-303 Savage Ackley Improved. You'd likely be pleased with performance, and own something very unique.
If not, I'd sure make an offer, budget permitting.
Somebody somewhere could ream a 303 Savage to a 303 Savage/.35.
People have been opening up the bores of 30-30s to .35 for a long time.
