Chrono Data for Prvi M193, Igman M855, and more

[EricCartmann]

Got to play around with the chrono today. I only shot 20 of each round. 10 rounds of each @25 yards to get chrono data... and 10 rounds at 100 yards just to see groupings. When I shot for groups, I only had enough time to do ONE ten-shot group for each type of ammo.
For the Bushmaster 450, I was only able to get a 5 shot group because the scope mount came loose and I ran out of ammo before I realized what had happened.
I plan to go back tomorrow to test for more groups on the bench.
Rifle: Noveske N4 Light Lowprofile 14.5" Barrel, 1/7 twist barrel, ACOG TA-11F




Rifle2: Bushmaster .450, FF Forend, 16" Barrel, Millet 1-4x



Here is the ammo I will be chrono'ing.


Ready to start.


.223 Load4, 69gr Sierra MatchKings, 24.6 gr H-Varget, Lake City 06 Brass, CCI 400 Primer, OAL: 2.25"
Mean Average (feet per second): 2549
High (feet per seconds): 2561
Low (feet per seconds): 2523
Standard Deviation: 15.52
10-shot-group mean diameter (inches): 1.5"


Igman M855, SS109 62gr FMJ
Mean Average: 2909
High: 2930
Low: 2874
Standard Deviation: 17.56
10-shot-group mean diameter: 2.62"


Prvi M193 55gr FMJ, 2007 Headstamp
Mean Average: 3041
High: 3063
Low: 3012
Standard Deviation: 16.19
10-shot-group mean diameter: 2.5"


Prvi .223 75gr HPBT Match
Mean Average: 2424
High: 2510
Low: 2325
Standard Deviation: 73.29
10-shot-group mean diameter: 2.87"


Silver Bear .223, 62gr HPBT
Mean Average: 2822
High: 2869
Low: 2786
Standard Deviation: 25.73
10-shot-group mean diameter: 2.52"


Wolf .223, 55gr FMJ, Black Box
Mean Average: 2872
High: 2914
Low: 2839
Standard Deviation: 36.19
10-shot-group mean diameter: 2.35"



Hornady Bushmaster .450, 250gr FTX
Mean Average: 2097
High: 2162
Low: 1856
Standard Deviation: 96.18
5-shot-group mean diameter: 2.1"

[PackerfanXD]

Great report.

[Knight-SG7]

Where did you find your ACOG?

[EricCartmann]

Originally Posted by Knight-SG7

Where did you find your ACOG?

Give shootforless.com a call. They will hook you up.