It's advertized as a "short rifle" but has a curved rifle buttplate like a standard 1899A or B.
Most other companys supply a curved butt plate when you ordered a "short rifle", maybe Sav did the same.
Anybody have pics of the front sight dovetail boss on their rifle.
I also have a 22" octagon barrel with a raised boss for the front dovetail to be cut thru. It looks like that was the only way to provide enough meat to cut a dovetail as the barrel also has what looks like a rapid taper.