A Data-Driven Approach To Precision Rifles, Optics & Gear
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Cal

Cal Zant is the shooter/author behind PrecisionRifleBlog.com. Cal is a life-long learner, and loves to help others get into this sport he's so passionate about. Cal has an engineering background, unique data-driven approach, and the ability to present technical information in an unbiased and straight-forward fashion. For more info, check out PrecisionRifleBlog.com/About.
Warner Tool Company Flat Line Bullets

First Look: New Super-High-BC Flat Line Bullets

Over the past couple months, I’ve been working with a lot of scary smart engineers on my muzzle brake field test. One who has given me a lot of great input is Josh Kunz, whose professional background is in Aerospace Engineering. Josh recently told me about a new line of bullets he’s been working on, which have the potential to be one of the biggest leap in ballistics in recent history. The product is being unveiled this week at rifle competitions at Camp Perry. In fact, some of the bullets are being shot in competitions for the first time today! ...

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Best Muzzle Brake For Staying On Target

Muzzle Brakes: Ability To Stay On Target

One important aspect of a muzzle brake is helping the rifle stay on target. In fact, I was discussing this muzzle brake test with David Tubb, a very accomplished rifleman, and he is convinced the ability to stay on target was the most important aspect of a muzzle brake. He thought a few percentage points difference in recoil reduction may not make a huge difference (or help you get more hits), but a brake that can keep you on target can be a big advantage. Staying on target not only allows quick follow-up shots, but more importantly for precision shooting, ...

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Best Muzzle Brakes

Muzzle Brakes: Recoil Reduction Results Summary

This post provides a comprehensive view of the muzzle brake recoil reduction data gathered on all 4 rifles. You can dive deeper into the recoil data in these posts: How The Data Was Collected 6mm & 6.5mm Recoil Results 308 & 300 Mag Recoil Results To recap, here is a look at the 4 cartridges and rifles used for the recoil tests: First, let’s look at how the recoil signature of each rifle was affected. The graphic below shows the amount of recoil force over time for each rifle, which was directly measured at the butt of the rifle. Each ...

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308 Muzzle Brake & 300 Mag Muzzle Brake

Muzzle Brakes: Recoil Results for 308 & 300 Magnum

This post summarizes the results for the recoil tests ran on 20+ muzzle brakes using two 30 caliber test rifles: the 308 Win and the monster 300 Norma Magnum. The recoil data was collected using high-speed, high-resolution force sensors. For more info on the test equipment and how the data was gathered, please see the recoil post. Here is the full line-up of muzzle brakes, and you can read more about each in this post. How to Read the Results As we discussed in the recoil post, when someone claims a product “reduces recoil by 50%” … it usually isn’t ...

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6mm 6.5mm Muzzle Brake Rifle Recoil Results

Muzzle Brakes: Recoil Results for 6mm & 6.5mm

This post summarizes the results for the recoil tests ran on 20+ muzzle brakes using 6mm and 6.5mm test rifles. To see the full line-up of muzzle brakes tested, check out this post. The recoil data was collected using high-speed, high-resolution force sensors. For more info on the test equipment and how the data was gathered, please see the previous post. How to Read the Results As we discussed in the last post, when someone claims a product “reduces recoil by 50%” … it usually isn’t clear what they’re talking about. Unfortunately, there is no industry standard for measuring recoil, ...

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Rifle Recoil Test Setup

Muzzle Brakes: Recoil Primer, Test Equipment & Rifles

This post provides a primer on recoil, and then explains how I measured recoil, including the approach and specific equipment used. It also reviews the rifles and cartridges tested. What do we mean by recoil? I’ve read a thick stack of articles and white papers on this subject, and suffice to say we can get pretty deep in the weeds if we weren’t careful. But, I’m going to try to keep it simple and on point. For our purpose, recoil is the rearward kick we feel when we fire a rifle. I’m less interested in the esoteric mathematics-based models (although ...

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Muzzle Brakes

Muzzle Brakes: Field Test Overview & Line-Up

This is the first post in a series that will cover the results from an epic muzzle brake field test. This represents an unprecedented, data-driven approach to evaluating the best precision rifle muzzle brakes on the market. Hundreds of hours have gone into this research, and the tests I conducted are built on advice and feedback from some of the most respected experts in the industry. This included leading manufacturers, top shooters, gunsmiths, mechanical engineers, university faculty, and defense contractors who have done similar work for the military. Thanks to all the guys that helped me with this! I tested ...

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Berger 6.5mm 130gr Hybrid Bullet

New Berger 6.5mm Bullet for PRS Shooters

Berger recently released a new 6.5mm 130gr Hybrid bullet. Bryan Litz, Chief Ballistician at Berger Bullets, told me “This bullet was optimized for magazine length ammo based on the popularity of the 6.5mm cartridges in PRS competition.” 6.5mm cartridges like the 6.5 Creedmoor, 6.5×47 Lapua, and 260 Remington are very popular in those types of competitions (see the full list of the most popular cartridges). In PRS events, multiple targets are engaged at each stage, often within a ridiculously short amount of time … so magazine feeding is a must. Bryan and the team at Berger created a bullet optimized for ...

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