Long Range 16" Build

I wanted to learn distance shooting, and my CL 14.5" barrel wasnt giving me the results I needed.

I have weekly access to a 700yd range with 1000yds available once a month or so. I built the following to push the limits of a 16" 223/5.56 and develop my LR skills.

Tip-to-butt:
FCD brake
Harris hbrs with badger mlok adapter
Larue Stealth 16"
Giessele Mk8 15"
Aero upper
Bcm bcg
Bcm mod4
Anvil arms lower
Bcm gf3 grip
Larue MTB
Reptilla AUS
Brownells MPO 3-18
Arrendondo magwell
B5 bravo

Called flier opens the group to 1.5"
Shot with bang bag and bipod off wooden bench. I believe the higher shots are something Im doing. Still learning:

I was TODAY years old when I found out that the words Long Range & 16" could be used in the same sentence.
Brother thats fine shooting right there, NICE rig. What ammo?

Haha, yeah… im using the term in a 223 context.
69gr handloads. Ill be trying these and also working up some 75s for 1k.

Very nice looking carbine.
I find I shoot better from a bag or back pack than with bipod, just if you haven’t tried it.

Thanks, ill try it. Im definately doing something wrong. I was messing with trigger pulls and bipod tension (how hard the stock is in my shoulder), and it moves my poi up and down. The three high shots were “looser”.

I should be on the 700yd tomorrow.

Very nice. Flyers or not, those are good real world results. I look forward to seeing your work with this build.

Most impressive, thank you for the specs noted, may adapt and try a new build to start doing distance shooting as well.

Had a great day. Had repeatable hits out to 650 on c-zone (5 in a row). Followed with a first-attempt hit on a 4" plate at 600. (First round on that target, but had windage from 550 &650). Not super repeatable, but a good confidence boost.

I’m going to work this load and try new primers and boosting the charge. It cycles but does not lock back on empty mag (69gr x 2725fps). Im getting random, unexplainable shots around .3 mil off, always seems to be high/left. Trying to determine if its me or the load.

Almost forgot, dude I met had a USO 6-36x(iirc), very nice. My scope absolutely works at these distances, and I love the reticle, but i see where the 3x price goes… clarity was noticably better, and no noticable chromatic abarration. The brownells has blatent abbaration on 18x but the reticle is crisp and tracks very well. Image is clear enough to see what I need to at 700. The image clears up a bit just dropping down to 15x. He also showed me up with his 20" AR on the headhunter… time to put more work in!

In pic: l->r truck=675, yellow head-hunter around 630, large and c-zone ipsc 650, large ipsc and KYL 700

Nice!

Well that’s a good time. Well done!

You shot that group at 700 yards?

If so, holy crap dude, that’s awesome!

That’s a hundo group. If he shot that at 700 yards, I’d quit shooting.

I ****ing wish lmao.

That’s your 100 yard group?

YOU SUCK!

Just kidding!

Lol. I do though! See below, i feel like this is a 1" gun easy, might have to get some fgmm to rule out or confirm ammo.

Any idea whats going on here? Got my velocity SD down to <12

Is this a trigger press/followthrough issue? Could inconsistent stock pressure/placement do this? Parrellax was correct. I keep getting 2 distinct groups:
1- 6 shots about .8"
2- 4 shots i. .7"
3- 5~1.1 (top shot was cold bore)
4 - 5 shots in .46"

I would get some good, solid match ammo, setup a bipod and rear bag, and take your time shooting.

It took me a long time to get anywhere near the groups i get now. I started in to the long rang PRS not too long ago (getting out of it now). It took me about a year to hold a 1” 10 round group with match ammo that costs 2.50 a round.

I know I’m late to the party, but nice rig!

Put a harmonic balancer on the end of the barrel, see if that closes up the groups. If that works then you might need a different barrel.

I’ve had some Larue barrels shoot lights out and some just ok. They all needed a little break in though.

Ditch the bipod, get good sand bags fore and aft.

69s will go trans-sonic between 800 and 900 yards. You’ll need a heavier bullet to stay supersonic at 1,000 (typically a Sierra, Berger, Hornady, or Nosler – 70+ Very Low Drag, or an 80 / 80+ grain Match, usually loaded long for single-shot feeding).