4 ms·
That's inaccurate at best. The shell size is mostly unchanged. The powder inside, the materials and the manufacturing have progressed. Just looking at the diag
by user5994461 8y ago
That's inaccurate at best. The shell size is mostly unchanged. The powder inside, the materials and the manufacturing have progressed.
Just looking at the diagrams in that page, I doubt that measurements were defined with a 0.001 inch accuracy in 1921.
- iguy 8y agoWell, not an expert, but have you got any information here? The technology was pretty mature in 1921, there were a few rounds of refinement before that. Machinists definitely talked about "one thou" back then. The same M2s which fire these things have been in production for over 80 years. I'm sure there have been small tweaks, special versions, etc, but basic compatibility has remained.
- Treblemaker 8y agoVernier calipers capable of measuring 0.001 inch were available in 1851. Agree on your first point, however.
- CydeWeys 8y agoThe powder really isn't that different. The max pressure allowable is part of the cartridge specification, which hasn't changed since the original design. Otherwise you'd have newer ammunition blowing up older guns, which clearly would be unacceptable. You can take modern .30-06 ammo, which is still a very popular hunting cartridge, and fire it in an M1903 Springfield with no issues.