Jul 21, 2018 · You could do a narrower OCW from 23.9-24.2 but I'm fairly certain that playing with seating on 24 will give you good results. I'd say you are probably 15-20k away from the seating node. Once you find that then I'd play with the Chrono on a 10 shot or take it to 300-500 and see how it holds as Gustav said then do a Chrono string.

May 28, 2007 · OCW is a charge weight that shoots good and impacts in the same spot despite variances. For example, an OCW of 45 grains of Varget under a 168gr Amax shoots the same as 44.8 grains or 45.2 grains. So if you set your crappy powder measure to throw 45 grains, your load will shoot well even if the measure throws charges all over the place.

Feb 21, 2021 · Spent a few hours at the range today breaking in the new Bartlein barrel on my AR and running thru the “Optimal Charge Weight” OCW load test. For those not familiar, the process was developed by Dan Newberry. It’s a very simple and quick way to determine the most accurate load for your rifle.

Feb 28, 2017 · During the OCW test, you'll see how slight changes in pressure/velocity will cause wild fluctuations in POI, but if I'm in the accuracy node, several charge weights (read: SEVERAL DIFFERENT PRESSURES AND VELOCITIES) will have very little effect on my point of impact!

Oct 6, 2020 · I tried a Round Robin OCW test yesterday on a new load for my .223 JP AR-15. I already have a good load for it now with XBR and 77 SMKs. But I wanted to work up a Varget and TAC load as I'm running out of XBR and it seems unobtanium at the moment, but I've got lots of Varget and TAC on hand.

Oct 7, 2012 · I recently obtained some CFE 223 for my AR and some 180 Interbonds for my 300 Win Mag. With the recent OCW chatter I figured I'd give it a try. Target photos below.

May 6, 2012 · Started my OCW on my DPMS Oracle today found what might be my low and high nodes but I need to go back out and verify before I can say for sure. Started at 46.6gr and ended at 48.2gr because at 48.8 primer was cratered and recoil impulse was very sharp. I'm using ppu brass with WLP primers with a...

Mar 11, 2023 · Did a rough OCW on my recently built 6.5 creedmoor. Alpha spp brass Berger 130 ar hybrid CCI 450 Reloader 16 All fired at 108yds. The one that went high...

Nov 17, 2012 · But I haven't gotten back too the 178's yet, I have an itch to load up some OCW with those, though, and test them next time also. I've shot a lot of Varget under 168 AMAX lately and I like it, best groups so far, by far.

May 23, 2015 · This morning I decided to start working on loads for an AR chambered in 5.56 that I built a few months ago. After reading a lot about the OCW (optimal...