Accuracy is your friend. Speed, while friendly, doesnt always help us.
Today at 200 yards with the 223 and 69 gr sierra match king's.
I usualy save a few good targets and log all the infor on them.
With Varget power I think that I was pushing them a little
faster this time,as the accuracy went to hello in a hand basket.
with 24.5 grains I was getting groups of around 3/4 inch at 200 yds.
and the bullet into the rifleing...I uped it to 25.2 grains and the groups
opened to about 1 1/2 to 2 inch...
So whats some of your suggestiong on this..Is the speed over rideing
your accuracy as well.
I guess I let the wind do my thinking..As I thought that if I went
faster I would do better in the wind..Well,I do not think that works.
At least,not for me today..
Accuracy is your friend. Speed, while friendly, doesnt always help us.
Who cares how fast they're going as long as they're all going in the same hole.
I have found in the 223 that .0003 of a grain can make a big difference in group sizes,at least with Varget and 8208.
I have never found varget in my 223 to be that sensitive to small powder charge differences.
im going 25.2 of varget with the 69,s....works well thru my 24" 1/8 tube
Start with controlling neck tension (consistent neck tension) and as close to 0 runout on loaded rounds.
Really???? Three-Ten thousands of a grain? A single kernel weighs more than that. Got to be a misprint.
"And you shall know the truth, and the truth shall make you free.” John 8:32 (New King James Version)
most of the time i find 2 nodes where speed and accuracy is good then i take those 2 and shoot side by side and which ever produces the best groups (i take them out 3-4time just to make sure it wasnt a fluke) and go with that .
I was usually getting the best accuracy form Varget between 24.5 to 25.0gr.
Another example of accuracy vs. speed, when I was running a 6.5-284 a while back using the 139gr Lapua Scenars the best accuracy was at a MV of 2850fps but the round was capable of 3200fps.
I had the chance to shoot some of my rifles through a chronograph yesterday. My wifes 308 shoots ok
With a SST's going 2900. Its what she hunts with. It shoots one hole with another load going 2660. In her mind wont kill anything.lol. but my 7mm mag always shot around an in. Going 3075 with rl22. Changed to h1000 groups droped to under a half moving 3235. Never know about them. I think they're all different.
Think of a bullet like a race car.... funny car dragsters are the kings of speed. BUT when things go wrong, it gets bad fast.
You have moved out of your accuracy node...and only testing will show if you can achieve the next higher node above 24.5gr without pressure.
I'd load up 3 rounds each at 24.8, 25.1 and 25.4 and shoot an OCW...see where the groups tighten up again.
Then, load up a bunch to verify accuracy if you find another node with pressures you can live with.
Get the bullet back out of the lands, find where it likes to be, try .015, .030, .045, .060, there will be a VERY obvious optimal jump distance about .010" wide, and there will be more than one, often in multiples of the smallest.
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