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Tag Archives: Bryan Litz

6.5 Creedmoor Ammo Test Part 3: Live-Fire Muzzle Velocity & Consistency Summary

6.5 Creedmoor Muzzle Velocity

Welcome to Part 3 of the results of a massive 6.5 Creedmoor ammo field test, where I tested multiple boxes of every kind of 6.5 Creedmoor ammo that is marketed as “match” or “target” grade. That included 19 different brands and types of 6.5 Creedmoor ammo! This article is going to cover all the muzzle velocity data that I collected over almost 1,000 rounds fired. Consistent muzzle velocity is key for long-range shooting, otherwise, bullets that leave the muzzle faster than normal could miss high, or bullets that leave the muzzle slower could miss low. While the goal is for ...

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6.5 Creedmoor Ammo Test Part 2: Physical Round-To-Round Consistency

6.5 Creedmoor Ammo Consistency

I’m so excited to start sharing the data I collected in a massive field test I conducted on 19 different types of 6.5 Creedmoor match-grade factory ammo. With the price of this kind of 6.5 Creedmoor “match-grade” factory ammo hovering around $3/round right now, it seems like this series might be especially relevant! That’s too expensive for most people to experiment with several brands and types of ammo, so hopefully, this research will help guys narrow down their search to a couple of the best-performing brands and types to try in their rifles. I know there are a ton of ...

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Precision & Group Size – Statistics for Shooters Part 3

Precision & Group Size

This is the final article in my Statistics for Shooters series, and it focuses on the application of statistics when it comes to quantifying precision and group size. It provides practical answers to some age-old questions: How many shots per group do I need? Should I exclude fliers? Is extreme spread the best way to measure my groups? What is the most effective and accurate way to compare groups between two loads? I spent more time writing this article than any other single post I’ve ever written! It challenges some common beliefs held by some in the shooting community, so I tried to carefully present the reasoning behind that in a way that was approachable to shooters who aren’t math nerds. It also contains a lot of practical tips. I firmly believe these concepts will help a TON of people in the long-range community.

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Muzzle Velocity Stats – Statistics for Shooters Part 2

Muzzle Velocity Statistics for Shooters

Part 2 in my Statistics for Shooters 3-part series focuses on how to analyze muzzle velocity consistency, which is critical for us as long-range shooters. This article shows how to apply the concepts from Part 1 to get more insight and make better decisions related to muzzle velocity. It provides practical answers to some age-old questions: Should we look at ES or SD? How many shots do we need to fire in a string? How do we get the most value from the shots we fire at the range? I spent an absurd amount of time arduously crafting this article and creating visuals so it was approachable by shooters who aren’t math nerds because I firmly believe these concepts can help a TON of people in the long-range community.

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Bullet Jump Research: Executive Summary & Load Development Tips

This is the last post in a series of articles focused on bullet jump research that has been conducted more than two years by Mark Gordon of Short Action Customs (Who is Mark Gordon?). In this post, I’ll provide an executive summary of what we covered and provide a few tips for how to apply this new knowledge in our load development. The first article provided a comprehensive overview of what 10+ of the most respected books and reloading manuals had to see about bullet jump and laid the foundation of what bullet jump is, along with other concepts like ...

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Mark’s 18-Shot Bullet Jump Challenge!

Mark's 18 Shot Bullet Jump Challenge

Are you one of those guys who has been reading this series of posts on bullet jump, and thinking to yourself, “Well, my 0.020” bullet jump sure seems to be working fine. Doubt this would be any improvement over what I’ve already got!” This is the post for you! As Mark started sharing some of his bullet jump findings with a few shooters, he met some skepticism – even from sponsored shooters on his Short Action Customs team. Here is how Mark tells one of those stories:  “After we’d already done most of this bullet research, we had Solomon from ...

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Applied Ballistics Mobile Lab – The Future Is Here!

Applied Ballistics Mobile Lab

Well, when I started writing that last article on personalized drag models being the final frontier of predictive ballistics, I honestly believed I was going out on a limb and trying to predict something that might be years away. It turns out it was only months away! Welcome to the future! 😉 One of the biggest benefits I get as the author of PRB is getting to meet industry experts and have interesting conversations with the leading minds in various fields related to long range shooting. I absolutely love those conversations, and value them more than any payment I could ...

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Personalized Drag Models: The Final Frontier in Ballistics?

Personalized Drag Models Bullet BC Long Range

I am super-excited about this article! I’ve actually been working on it for a couple of months, and I believe it represents some of the most interesting research I’ve come across in a while. Over the past several years, companies have started using Doppler radars to gain a much deeper understanding into the flight of a bullet. One ballistician told me recently that we’ve learned more in the last 5 years than the previous 75 years combined! In the last article, we looked G1 BC vs. G7 BC vs. Bullet-Specific Drag Models, including which of those the top-ranked precision rifle ...

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G1 BC vs G7 BC vs Bullet-Specific Drag Models

G1 vs G7

“In the past 4-5 years we’ve made quantum leaps when it comes to predicting bullet trajectories.” –Dave Emary, Ballistician Ever wonder why you center punch targets at some distances, but your dope is a couple clicks off at other distances? Maybe your shots are dead on at 600 yards but off at 1000 yards, or vice versa. In those scenarios we often blame the rifle, scope, ammo, or ourselves, but is our firing solution as accurate as it should be? This article gives practical insight into some important nuances of predicting bullet trajectory, and shows what drag models the top ...

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