Gun Data of the Day – Day 14
Today, we look at the .45-70, a cartridge that still sees use for sportsmen after over 140 years.
| Parent case |
.50-90 Sharps |
| Case type |
Rimmed, tapered[1] |
| Bullet diameter |
.458 in (11.6 mm) |
| Neck diameter |
.480 in (12.2 mm) |
| Base diameter |
.505 in (12.8 mm) |
| Rim diameter |
.608 in (15.4 mm) |
| Rim thickness |
.070 in (1.8 mm) |
| Case length |
2.105 in (53.5 mm) |
| Overall length |
2.550 in (64.8 mm) |
| Rifling twist |
1-20″ |
| Primer type |
Large rifle |
| Ballistic performance |
| Bullet weight/type |
Velocity |
Energy |
| 300 (Trapdoor) Lead PB |
1,597 ft/s (487 m/s) |
1,699 ft·lbf (2,304 J) |
| 405 (Trapdoor) Lead FN |
1,394 ft/s (425 m/s) |
1,748 ft·lbf (2,370 J) |
| 300 (Standard) JHP |
2,069 ft/s (631 m/s) |
2,852 ft·lbf (3,867 J) |
| 300 (Strong) JHP |
2,275 ft/s (693 m/s) |
3,449 ft·lbf (4,676 J) |
|
| Test barrel length: 24″ |
Posted by daddybear71 on June 22, 2015
https://daddybearsden.com/2015/06/22/gun-data-of-the-day-day-14/
DaddyBear’s Den 
John in Philly
/ June 22, 2015I still have a liking for the .45-70, and I wish I had bought that Ruger Number 1 in .45-70 quite a few years ago.
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