6.5 creedmor semi-auto bullet selection - what are you shooting?

[gilk]

building a 6.5 in AR10 (20"). Im planning on shooting the Hornady ELD. What weight bullet works best in a semi auto platform to achieve the most efficient ballistics? Is the extra velocity with the 130gr worth the loss in BC over a 140 or 147. I can't find any info on velocity of these bullets in a gas gun to do a ballistic comparison. What are you guys shooting and what velocities are you getting?

 

[SupressYourself]

Seems like the platform (gas vs bolt) wouldn't usually dictate bullet selection. I would think the only issue would be mag length. With the longer bullets (140 & 147) and a hefty load of powder in the case, you may either be seated too long or compressing the load too much trying to make mag length. All I can say is my brothers AR10 in 260 seems to like 120-class bullets best, which probably means nothing to you.

 

[padom]

260 vs 6.5cm in a gas gun are different animals. You aren't mag limited with 6.5cm, 260 you are. Well as long as your running KAC mags. I run 130 eld and 140 eld in my 6.5cm.

 

[PhOnEpHrEaK]

I run 140 RDFs at mag length.

 

[supratt96]

Been using 140gr ELDs with pretty good results. The 130 ELDs have been less consistent for me but I only tried one load with them so far. My rifle (JP LRP07) seems to like the old 123gr Amax, but can't get them anymore. May try some 123gr Sierra next.

 

[samb300]

Berger 130gr AR Hybrids were designed specifically for calibers like 260 out of a gas gun. They're more expensive than the ELDMs, but should be worth a try.

 

[HemiPowrd]

I'm using the 140gr ELDs and am not that great a shot, but when I do my part I'm averaging around .75 MOA out of a 6.5 CM JP LRP-07. I'm pretty sure the limitation is me and not the round or the rifle. Velocity averages 2650 fps - 22inch barrel.

I finally got ahold of some 130gr Federal Berger GMM and hope to test it this weekend.

 

[AR805]

Run factory loads- 140gr ELDM and 130gr PRIME. reloading my own w 140gr ELDM bullets.

 

[AR805]

Shooting submoa in my gasser, 22" krieger/mega build

 

[bobke]

140 Amax-have a bunch fm single lots. 139 Scenars are exceptional in several 6.5 CR barrels fm 21-24". Bartlein, Lilja and Criterion barrels all pretty tolerant and relatively easy to work up loads for.

 

[AR805]

140 Amax-have a bunch fm single lots. 139 Scenars are exceptional in several 6.5 CR barrels fm 21-24". Bartlein, Lilja and Criterion barrels all pretty tolerant and relatively easy to work up loads for.

got any groupings w the scenars? Going to order a few of those and bergers for reloads

 

[VegasHKShooter]

I have shot multiple groups around .510-.525 with Lapua 120's. They definitely get pushed around in the wind more though.
If I just want to buy off the shelf and go shoot, I can consistently get .70 out of the Hornady 147 ELD-M ammo. Very solid out of my GAP-10. 10.6 mils to hit steel at 1250 with very solid regularity.
Ive shot 143 ELD-M and the ELD-X as well. My gun likes them all just fine.
I love the 120 Lapua's for out to 500, but the 147's just hammer out at distance.

 

[runningbear]

My JP barrel loves Hornady 120gr ELD match, but hates the 140gr Match. Might try Prime soon