6.5 Creed velocities outta 18” barrels

[ClayDirt]

What kinda velocities are you all getting out of them 18” gas guns? Shot my gasser over the chrono using 140 els-m w/ 41.5 grs of h4350, chrono said 2400 fps.
That being said, plugged my data into the calculator and shot out to 400 yds, I was shooting over a moa high ( closer to 1.5 ) I adjusted my numbers, the calculator seems to think velocities are closer to 2550. Is my chrono poop?

 

[260shooter]

I'm getting 2725 fps out of a 18" bbl using 130 ELD-m's and RL-16.

 

[ClayDirt]

That’s respectable, I also shot 120 els-m over 43.9 grs of h4350. My chrono said 2625, it’s really got me questioning the accuracy of it.

 

[drwood96]

Not a gas gun but i'm getting 2668 with Berger 140, 43grs H4350, cci450, and Lapua brass.