I agree that if the node is wide enough then smaller changes in vel won't make as much of a difference, which is the whole idea between finding a good node.I have not noticed that that relatively small changes in velocity from changing seating depth or jump are even visible when using average group size as the measuring goal.
Of course, like many of us, my shooting skills mask many of the nuances in reloading that we spend so much time trying to investigate and discuss.
As I get older and older, I tend to depend what I can measure and let all the other nuances be.
That doesn't mean that the nuances aren't causing an impact, only that I can't measure their effect.
from what i have read, and found, high es on .223 is not at all unusual. since .223 is not an elr round anyway, i started ignoring the high es more while also enjoying the shooting more. it has still taken plenty of pdogs out to the 400+ range for me.A while back I shot the .223 and had consistent 1/2MOA groups at 300yd. Back then I had a chronograph with screens. I set it up one day and measured es/sd to be in the 50/25 range!
ROFLMAOCharlie......Dive a little deeper in that rabbit hole. Ya' might run across
a tuner, and hate me some more.....LOL
I have heard that, but, I have gotten better. I think part of it is no one expects any better from it. Most FTR folks don't use it since the little bullets have 'issues' at 1000yd. Benchrest guys tend to go to 22PPC, 6PPC, etc. A few might go for the 222. There seem to be some who can work with it. I REALLY like mine at 600yd with heavier bullets. It is a challenge in the wind, but, I used to shoot cast bullets at that range so this is 'easy'from what i have read, and found, high es on .223 is not at all unusual. since .223 is not an elr round anyway, i started ignoring the high es more while also enjoying the shooting more. it has still taken plenty of pdogs out to the 400+ range for me.
FWIW, in 223, I've found the difference between being on a node to being not on a node to be over a MOA.
That said, I test from prone with a sling and, with 2 MOA ten rings and 1 MOA X rings, my requirement for accuracy is 1/2 to 3/4 MOA....
How are you obtaining this info and where are you inputting it in GRT?The barrel reflection frequency depends upon the type of steel.
The factory barrel was 0.3% carbon steel with a reflection speed of 19,107 fps. For a 26-in barrel, that results in a reflection time along the barrel of 0.11340 msec. yielding 1.134 for 10 reflections or 1.361 for 12 reflections.
The Shilen barrel was 416R stainless steel with a reflection speed of 20,014 fps.