The tang looks to me like a transition between the first series "clover-leaf" and the second series, as per Rule's book on the M70-beautiful metal and stock work. And you are right as the mail about the "in general" basic utilitarian look of most match target rifles. not familiar with Warner aps-- but may have both the front and the rear Parker-Hales from a BSA 12/15 in .22L- and the extra discs as found in the brass round drum mounted on the forestock, ahead of the receiver- Nice gun, sweet trigger, 29" barrel heavy walled, wood looks like a high grade orange crate- will refinish that and re-set BP, cut barrel back to 26" and re-crown, and I have a 1" dia. 10X Lyman scope I'll mount on it- I'd prefer an 6X or 8X for sniping squirrels, but us farm boys have to use what we have on hand--I'd love to head shoot some "tree rats" with that sweet M37 Remmie, and that's a fact!!!