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Getting scolded last night got me re reading the 8 x57 on the terminal ballistics research site.
I found it fascinating.
What’s interesting about these two cartridges is the 7 x 57 ( which is an original cartridge design) wildcatted into the 257 roberts.
The 8 x 57 (whose parent cartridge is the original rim less cartridge invented ) wildcatted to bigger diameter bores.
It’s fascinating also how the actual diameter of the 8 x 57 changed over time and the variation in performance between the Mauser model 98 s used.
Now I gotta study the 7 x 57 more.
But I believe the more a column of powder is bottlenecked before the bullet. The less efficient that column of powder becomes.
Last edited by Angus1895; 08/27/22.
