Didn't know Stevens made a 110E but Savage did with flat top rear reciever. If memory serves the serial number started with either an "E" or "F" letter prefix. Every one that I've modified used the same parts as todays models. Bolt heads may be different due too firing pin diameter but never had too modify one so don't have first hand knowledge. By the way the "E" models that I've changed also were 30-06 originally.
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