Originally Posted by
1168
81*F
12.5” Hodge/Velos
Federal XM855
2819 fps
39 es
13.6 sd
12.5” BCM Kino/Turbo k
XM855
2825 fps
69 es
20.3 sd
12.5” Criterion Core/.264MG7k
XM855
2824 fps
31 es
9.5 sd
69gr Norma .223
2620 fps
38 es
11.1 sd
These barrels are all pretty early in their lives, with the Hodge having the highest round count at like 1k or two.
Thanks for data dump, I hope this debunks a lot of the numbers being thrown around on TOS regarding the velocities of their 12.5 Criterions. Somehow people are getting into 2700's fps with mk262 clones and 3000 fps with XM193 and they are all using the new Garmin chrono. I would be highly suspect of the numbers coming out of their chronos from now on. Not to mention Garand Thumb was just using one to chrono the hybrid .227 fury and the numbers on that seem pretty fantastical.
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