>>135
知りたがっている事と違うが、前述の後追いで調べたらこんなのが出てきた。
ドラグ用にはSpecial Purpose 7.62x54Rとして7N1(旧)と7N14（新）があるようだ。
詳細データはないがType L/Type LPSより2.5倍の精度ということらしい。
ウラン弾の記事は、この元ネタのロシア資料の解釈ミスかもね。

＞The last special purpose cartridge that we know of was developed for use in the SVD sniper rifle and known as the 7N1 and 7N14.
＞These rounds were designed by Sabelnikov, Sazonov, and Dvoryaninov to be more accurate than the conventional ball ammunition
＞then in service.
＞According to Russian sources the round proved to be 2.5 times more precise than the Type L or Type LPS in use at the time.
＞It has no special markings, but can be distinguished from regular cartridges only by writing on the ammunition case.
＞
＞The 7N1 has a steel jacketed projectile with an airpocket, steel core, and a lead knocker in the base.
＞
＞The 7N14 is a new load developed for the SVD.
＞It consists of a 151 grain projectile which travels at the same 2723 fps, but　it has a lead core projectile and is supposed to be
＞the more accurate of the two. Nikolai Bezborodov, head of R&D at Ihzmash, stated that it was the most accurate load for the SVD.