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What does FGMM 168gr. chrono in a 26" barrel?

jrbet83

Sergeant
Full Member
Minuteman
Jan 31, 2009
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Pasco, Washington
It should be around 2690, but the stuff I've been shooting has been shooting a lot flatter (going off of the online ballistic websites), just curious if anyone chrono them before, since I haven't been able to yet or if anyone had a similar problem; being that their FGMM shoots flatter when compared to JGM etc.
 
Re: What does FGMM chrono in a 26" barrel?

From my Bartlein 5R barrel (25") it chronos around 2700fps. Flatter shooting may also have to do with altitude above sea level and the thinner air the higher you go. Things fly farther up higher, or another way of stating it, they shoot flatter.
 
Re: What does FGMM chrono in a 26" barrel?

Sorry about that, looking for 168gr ballistics. JGM takes into account altitude, air pressure and humidity. Thanks for the info though, 2700 out of a 25" may mean a 26" is up around 2720.
 
Re: What does FGMM 168gr. chrono in a 26" barrel?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jrbet83</div><div class="ubbcode-body">It should be around 2690, but the stuff I've been shooting has been shooting a lot flatter (going off of the online ballistic websites), just curious if anyone chrono them before, since I haven't been able to yet or if anyone had a similar problem; being that their FGMM shoots flatter when compared to JGM etc. </div></div>

Here is what I got,

Fed GMM 168 at 60 degrees, Density Alt 5571, Rem 700 P 26" barrel.

1. 2638
2. 2624 L
3. 2652
4. 2672 H
5. 2651

<span style="font-weight: bold">Average 2647 fps </span>
ES 48.67
SD 17.86