Please, help me to understand the situation with German 7,92x57 SmE bullets.
The information of the beautifull book Brandt, Hamann, Dr. Windisch. DIE MILITÄRPATRONEN KALIBER 7,9MM IHRE VORLÄUFER UND ABARTEN, 1981 indicate that there was 3 types of SmE geschosses:
Type A - core with flatened tip, bullet with triangular cannelure
Type B - core with sharp tip, bullet with triangular cannelure
Type C - core with flatened tip, bulet with rounded cannelure.
But during inspection my collection, I was not able to found SmE bullets with rounded cannelure. I also don’t understand the differencies between type A and C Geschosses - as per BHW, they differ only by cannelures (triangular for type A and rounded for type C).
In the same time, some of SmE bullets in my collection have a flatened core with small cavity (as I show at the picture below). The depth of this cavity is about 0,5 mm.
So I have some questions, and, hope, somebody can help me with them:
- Did SmE Geschoss with rounded cannelure really existed?
- What was the differencies between SmE Geschosses Type A and C?
- Does my alternate solution, shown on the right side of the below drawing, is correct? May be the core with flattened tip and small cavity is Type C?