Ep. 057 - One Hole Groups? | Dispersion |

Published 2023-02-02
On This episode, Seth is joined by Senior Ballistician, Jayden Quinlan.  In recent episodes, we've covered using statistically valid sample sizes to determine rifle and shooter capability.  This episode expands on that, and tries to answer questions like, "why don't all bullets go into a one hole group?" and "what are the factors that cause group dispersion?".  Many of the things that influence where a bullet goes are misunderstood and this podcast explores those factors.

All Comments (21)
  • @neilbaker7679
    Another exceptional podcast, Gentlemen. I particularly like the fact that two experts in their field do not talk down to us, the listening public. You give us the technical and scientific terms and how it all fits together, and yet do not alienate the casual listener, nor the person who is starting out on this fascinating journey. Kudos, Gents. Keep these coming. PS. Perhaps a bibliography/reference section in the description would save those of us who are very interested from scrolling through the transcript, and trying to decipher the automated transcription…
  • @nathanjames329
    This is the second or third time I've listened and it's still very helpful. It's amazing how easy it is to be wrong about what's causing dispersion and variability. Listening to Jaden give basic descriptions of these things clears out a lot of fog.
  • @user-cl7jw7td5q
    I had refused to watch this video because of the title. Glad these guys mentioned this video in a more recent video.
  • @slickrick809
    These podcasts get a little bit crazy technical at times, for me anyway, but I am used to that sort of thing. It's like when having coffee with my two old buddies who are structural engineers and they get into a discussion on statics and fluid dynamics. Keep throwing the heavy stuff in our direction. It's all good.
  • @CplSkiUSMC
    We intellectually know that there are imperfections in manufacturing, but this presentation gives us a much greater understanding of what those problems are and their effects. That, in turn, gives us the knowledge to make more informed choices in rifle purchases or builds, reloading components and equipment, and reloading practices. I have saved this video for reference and will watch it again and again as well as using directing fellow hand loaders to this excellent source. Thanks for the education!
  • @user-cl7jw7td5q
    Wow, this a great discussion! One of the first times I don’t really have any questions nor criticizing comments afterwards l. My wheels are just kinda spinning. Great job guys Thanks
  • @thorick590
    This is fantastic. Without this, there is no other way that I would get to hear things like this that truly deepen my understanding. Dumbed down enough for non-specialists like me, but not so much that the idea behind the issues are completely glossed over.
  • @keithking3220
    Love the podcast and loved when Jayden went on Erik cortina’s podcast
  • Excellent. Wonderful to hear the reality of the situation instead of hearsay, opinion & basically everything which can be covered by "IT WORKS FOR ME". Great Job Jayden. Keep it up, the shooting world sorely needs it.
  • @TTT-du6oj
    So many variables to precision shooting,bullets,barrels,scopes,shooting form,ect…Good talk Hornady👍
  • I have a savage 17hmr with a stainless heavy barrel did some work to the stock and it puts round after round in damn near the same hole at 100 yards with hornady 17 grain ammo until the wind starts blowing. Probably my favorite bolt gun.
  • @nycreloader
    Man I loved this conversation. As I have often said you can only control the variables while the bullet is on the bench being made once it leaves that barrel it’s up distance, air density, wind speed across your shooting plane (over distance you can have multiple winds in multiple directions), humidity and lastly temperature of the environment and temperature of your barrel. In the end all we can do is fix each step in our process one at a time by learning from our mistakes and if we are smart the mistakes of others and whittle them down one at a time overtime. I agree with you on just about everything you have said and I don’t think anyone could argue it’s all about tightening up of your variables of cause and effect to achieve the desired result. Finally choose a good projectile manufacturer who cares to make an accurate bullet not just a profitable one. Thx Hornady
  • @nathanbailey9153
    I like the visual aids. Please don't let the lowest denominator determine the quality of your productions.
  • Thanks for another fantastic session. Loving these ballistic podcasts
  • When you guys come on, my attention and listening is riveted to the screen, as these podcasts are just so informative and digestible, unlike anything that’s really come or been available before. Look forward to more.
  • Very good presentation of the factors the can cause bullet dispersion up to the point where the bullet leaves the barrel. I hope you are planning another presentation on the factors that contribute to bullet dispersion as it travels from the muzzle to the target.
  • Very informative. Many questions I have were answered. Great job,keep these podcasts coming.
  • @erp1776
    Thank you gentleman These things have been great thank you guys
  • @asknight
    Without a doubt, one of the best discussions I've had the pleasure to listen to. Thank you, guys!