I recently purchased some 7.62x54R ‘7N1’ ammunition and pulled a few bullets to sample them.
Here are the three I pulled, one whole, one partially sectioned, and one disassembled(lead core, steel core, and jacket).
I was surprised to find bullet construction of this type(small air pocket, then a short steel core on top of a lead core). I have always heard comparisons which lead me to believe that the 7N1 bullet was basically and enlarged copy the 7n6 bullet(with a rather long air pocket over a lead sleeve covering a steel core that extends to the base), while it actually appears to have more in common with the SS109 projectile. …Or perhaps, to some degree, even the FN P80 .30caliber AP projectile.
Maybe someone more knowledgeable can enlighten me about this bullet design and its origin/influences.
For instance, which projectile type was designed first, the 7N1, the P80, or the SS109?
Were the designs of either of the later two projectiles influenced by the one that was designed first?
Were any of them influenced by the composite core of the .303 MkVII bullet?