Ratnik: Sorry for the delay. Decided to join "team gunnutz" for easy photo uploading. So, if it worked, the attached photos show the non-standard notch on this '42 Tula. Obviously either field conversion or aftermarket? Of posssible significance is a shallow "C" above the date and a small "C" on the left side of the rear of the receiver. Have put a hundred rounds or so through this and it functions very well but isn't terribly accurate. In addition to your knowledge about sniper conversions, do you have any thoughts about how SVT's were originally stocked up? Of my dozen or so, the majority have some contact with measurable up-pressure at the tip of the forend although I do have a couple that with virtually free floating barrels. Thanks again for sharing your knowledge.
milsurpo
I think the notch is too far back for the mount to work as it should.