Seeking empirical evidence to support or refute powder/seating-depth nodes
- Thread starter VenatusDominus
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quandary
Well-Known Member
I think you need to watch the Furman videos on Long Range Only
So one guy posted a video that he found no difference in accuracy with seating depth changes. So the reality of statistics is that is just one data point. You would need at least 30 more people to replicate the results to see any trend. I suggest you read Bryan Litz's books if you want to nerd out.
L
L, that's also what I recommended in #8.
FireFlyFishing
Well-Known Member
Your groups are too small…
FireFlyFishing
Well-Known Member
Nah, I get what you were saying. The joke is on you.
Grey Goast
Well-Known Member
Simple when the speed of your bullet traveling through your barrel matches the center of your harmonics of your barrel as it leaves the last touching point of the barrel equals true travel of your bullet to target and if your aim is true and you have done your part the bullet will hit its mark with no fliers except in the case of bad bullet forming in manufacturing Just my thoughts running wild. Some people would call these nodes.
I am new (since 2019) to the long range shooting community and admittedly my experience is limited. I have been frustrated with all the voices claiming their methods are "how it should be done". I am not inferring that their methods don't work, what I am saying is that if so many different methods all produce the same results, accurate loads, then logically not all of the processes in the various methods are as significant as believed. In other words, the methods may work, but not for the reasons we believe. My goal is, through applying the scientific method, to sort out what actually makes a difference in the reloading process and what is just the deeply held dogma of the community.
I deeply appreciate and respect the experience and knowledge of those in this community, and their willingness to share it. I know that their methods work and produce accurate results, all I am trying to do is figure out why. After recently stumbling across the following information, I have radically changed my thoughts on how I approach reloading. I thought the community might benefit from the information they proffer.
I am looking to have an honest discussion about the information linked below and to hear your opinions, many with infinitely more experience and knowledge than I. If you take the time to review either of them, I would welcome your insight, obviously your have been doing this a lot longer than I.
Rifle Nodes: How You’ve Been Wasting Your Time and Money on Load Development
Everything you know about rifle nodes and load development might be wrong. Click here to see the results for yourself.www.outdoorlife.com
The video means little....two different relays is hardly a fair comparison. We have seen it many times (on video) of rifles seemingly go in and out of tune over the course of the day.
Edit to add.......as Fclass shooters (which KG doesn't do any longer) we get to see very large sample sizes. We get to see what actually works with some of the best platforms made. To discredit that because it's not a hunting rifle platform is silly in my opinion.
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Doghunter23
Well-Known Member
Link? He is just talking about running ladder tests in the forums I read, I know how to run a ladder test. Every load I shoot I shoot across my chrono during load development. My point is that during my load development I shrink my SD from 35 to 4.6 and my group size from 1.5 moa to .25 MOA and I guess it's not statistically relevant? It seems to be relevant to me but maybe I have an overactive imagination.
sjt18
Active Member
I meant your powder load. Are you over the published recommendation, in the middle, low, etc?
I'm kind of worried about touching the lands with a charge near max and having an extreme pressure event.
I am pretty close to a satisfactory load for Sierra TGK 140 Gn in my 270. I am at the max my mag will hold at 3.360. I don't have sophisticated equipment. I used a method the guys at IR used measuring from the muzzle to the bolt face and then seating a bullet with the bolt and measuring the max OAL by the difference. I think I'm still around 20 thousandths off the lands. I saw pressure with Staball 6.5 at over 55.4 gns. Someone else reported they got to 60 gns without pressure. I think I'm pretty safe at 54.8 to 55.0 right around 3000 fps.
I previously played with some ELD-X and must have been pretty close to the lands. Pressure went up on something less than the max load.
ShtrRdy
Well-Known Member
I provided one link in post #30. Included links below ...
ShtrRdy
Well-Known Member
Equalizer
Well-Known Member
This is the actual point of everything this guy has posted and asked about but for some reason nobody gets it. He's trying to find out the why.
Can't say I'm surprised by the rudeness but the inability to grasp the concept and the poor reading comprehension is kinda sad. I mean attacking a person for their screen name? Hating a company because they are successful? Berating someone who is trying something that could make an impact on the shooting community? Keep your methods and your opinion to yourself if you can't add anything relevant to the thread instead of proving how *hitty people can be.
