Originally Posted by
waffentomas
I finally got a decent day to take the akitas out into the woods with me for some chronographing. So here are some results, a mix of hand loads and factory for anybody who cares. I'll update the thread when I get chance to do more testing.
First: The tool.
Sunny, 35 degrees, 1200 feet elevation, Barometer 29.60, Humidity 75%
All strings are 10 rounds, fired at 15 feet from device.
Nosler 80gr BTHP 25.1gr TAC
Avg: 2542
SD: 57.3
Spread:129
Kinetic Energy: 1148
Sierra 77gr BTHP 22.0gr AR COMP
Avg: 2427
SD: 43.8
Spread: 136
Kinetic Energy: 1008
HPR 75gr BTHP
Avg: 2549
SD: 44.1
Spread: 93
Kinetic Energy: 1082
HSM 55gr FMJ 5.56
Avg: 3001
SD: 42.7
Spread: 138
Kinetic Energy: 1100
Herters steel case 55gr FMJ
Avg: 2817
SD: 53.4
Spread: 130
Kinetic Energy: 970
PMC 55gr FMJ
Avg: 2755
SD: 97.2
Spread: 275
Kinetic Energy: 927
55gr SP 26.0 gr Varget
Avg: 2366
SD: 41.2
Spread: 117
Kinetic Energy: 684
Are those SD's about par for the course with 5.56? I thought I recalled reading that the .mil rejection criteria were something like >15 FPS...
"You can't be a real country unless you have a beer and an airline - it helps if you have some kind of football team, or some nuclear weapons, but in the very least you need a beer."
— Frank Zappa
If the gun goes dry I use my knife. If the knife breaks off I use my teeth. I have only one rule - Start one job and see it through - The universe will have to offer someone else the leftovers. Multi tasking doesn't work in business or in gunfighting.
- Michael de Bethencourt
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