Been gathering parts for my AR-10 6.5 Creedmore for a long time. Put it together and fired 60 rounds of factory ammo at some gongs a couple months ago. Midwayusa sent me a notification that the 147gr ELDs were in, so I ordered 2 boxes to try. Loaded up a latter test (565yds) for 39-44gr of H4831, because that's all I thought was suitable with the powders I had.

Found a node at 43-43.5... Loaded up 7 with 43.2grs

Shot 1 through the Chrony for 2580fps... Seems slow, but I think I'll live.

Fired the next 6 at the 4x4 sheet @ 565yds just to check a group. Can't get that picture to load, Group was 3 inches high, and spread 6.5 left to right.

Happy enough to go back and make a drop chart and load up some more.

Things started to go south after 600. But I have many excuses, Like I haven't cleaned the barrel since installed. I'm standing shooting over the hood of a truck with bi-pod. I never shoot over 565yds, because I have to put a target on the neighbors place. Yet I'm still happy with the results, and I think Mr. Wile E. Coyote will be in trouble at any reasonable range.

Here's the first 10 at 820yds. All hit paper, the hit in the bullseye is hard to see.



I did buy a pound of RL17, I might give that a go, But this load seems reasonably accurate for an AR-10.
Now I just need to time the muzzlebrake, Find the screw I lost for the rear scope ring, and paint it so it doesn't look so stupid. At the rate I work on these projects, Maybe it'll be ready by deer season.

What I did learn today was a lot of the little things I don't pay attention to at my normal 565-600yd mark, start to really stand out at 800. Like that group of ten I had 6 Hornady brass and 4 Winchester brass. It's pretty easy to tell which 4 were Winchesters from the picture. So if I sorted and stuck to hornadys I still have about 27MOA of elevation left in the scope. Might wait for a calmer day and give it hell at a bit further... I better get it done before the neighbors corn gets very tall though.

Sounds like you're having fun, LJ. Hope you get your load down before deer season.

Looks like fun.

Is it me or is the compensator not timed? Looks like the ports are close to being vertical.

I screwed up on timing it. I bought a lathe the other day though, so I'll get that sorted, the screw for the scope ring and some paint before long. Might look decent when I get done. Might still look half-assed. Hard to say.