some load data, help? (.223)

[dastt]

so I've been doing some load testing in my gun. i'll just get right to the data.

i'm working at the moment with sierra 60gr varmint tips, hornady brass, cci br4 primers and benchmark powder, COL of 2.260"

for my ladder I kinda messed up, I read on mystics website, but must have missed the part about trying it at 200 because its easier to see the variations at a further distance. so I shot the first 4 charges at 100 then the remaining at 200. here is the data: 2 shots loaded at each charge
21.5 - 0.831 (100yd)
21.7- 0.551 (100yd)
21.9- 0.377 (100yd)
22.1-0.678 (100yd)

now heres where I shot the remaining at 200, and no, theses aren't typos, refer to pictures

22.3- 0.110
22.5- 0.101
22.7- 2.058 (my error, I knew something got away from me here)
22.9- 0.947
23.1- 1.649
23.3- 2.098

so seeing this data, I loaded up 2x 3 shot groups in the following charges: 22.1, 22.3, 22.5, 22.7 (I KNOW THE PICTURE SAYS 21GR THAT WAS MY MISTAKE IT WAS CORRECTED IN MY LOG BOOK)

heres the results from that test at 200yds

22.1- 1.465 - 1.376
22.3- 0.733 - 1.351 (felt something on this one)
22.5- 1.545 - 1.818 (not the smallest but it had the least vertical spread)
22.7- 0.906 - 1.047

this is the same ladder test starting with sierra 53gr MKs and 53gr hornady match. same powder charges for each of them, again at 200yd

today the weather was dead calm, not even a slight breeze. here is my gun, you can see the target at 200yds in the treeline.
rifle is a rem700 varmint in 1-12 twist stock barrel. stock is custom by me, pillar bedded, bedded with devcon.

from today:

any imput would be greatly appreciated

 

[ShaunM]

I'm a far cry from an expert, but in your shoes, I would load up 12 of each, of the two or three most promising loads. Then shoot 4 seperate 3 shot groups. This will help to reduce those 'oh, that was me' moments, because you can look at the averages of them. Looking at your numbers, the ones that I like the most are the obvious 3.
22.3- 0.733 - 1.351 (felt something on this one)
I like this one because it has potential, if it was you pulling it on the 1.351 group, that 0.733 is very impressive. I think it could deserve 12 more tugs on the press.
22.5- 1.545 - 1.818 (not the smallest but it had the least vertical spread)
Same story as the other load, vertical spreads the name of the game.... however, that being said, my favourite load out is the last one
22.7- 0.906 - 1.047
This one just screams consistency to me. If you only want to load up another 24, instead of 36 rounds, focus on 22.3 and 22.7 imo.
That being said tho, do you have a chrony to set up for these to see the max spread in fps between them?


End of the day, impressive shooting, hell of a stock, and it looks extremely promising two thumbs up

Also: thought about it after, but overlay the point of aim on all 4, three shot groups, of each load so you see a 12 shot group also afterwards. Should make it pretty easy to see which load is the most consistent.