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August 3rd, 2024

Saturday Movies: Notable Product Reviews by F-Class John

F-Class john tool youtube video reviews press

Forum member F-Class John is an avid F-Class competitor and expert handloader. John reviews reloading hardware and shooting-related products for his popular F-Class John YouTube Channel, which now boasts 500+ videos. John also does important product testing for AccurateShooter.com. Through his YouTube channel, John has reviewed many of the latest and greatest reloading tools and accessories. For today’s Video Showcase, we selected seven F-Class John product reviews. Products tested include Ingenuity Products Powder Dispenser, AMP Mark II Annealer, Multiple Joystick front rests, Micron Reloading Dies, SEB Neo-X and Rodzille T-Rex (with field tests),

If you like these informative videos, consider joining F-Class John’s Patreon Channel for live video meetings, more in-depth videos, and detailed explanations. Join Patreon via Patreon.com/fclassjohn for full length videos, live chats, and more.

Ingenuity Precision Automated Powder Dispensing System

The innovative new Ingenuity Precision powder dispensing system is a true rival to the popular AutoTrickler system. F-Class John worked with the team at Ingenuity Precision during the development of this advanced, computer-controlled powder dispensing system and he is impressed with the results. John shows the Ingenuity Products unit in action with a variety of popular powder brands. He also demonstrates how the system can be conveniently controlled via an App on your cell phone. If precision powder dispensing is your goal, you should watch this video start to finish. When fine-tuned to the powder type, this machine can deliver exceptionally repeatable results. It is now available for PRE-ORDER.

AMP Annealing Mark II DB Annealer

The AMP Mark II DB Annealer is the latest and greatest microprocessor-controlled induction annealing machine from Annealing Made Perfect in New Zealand. This machine provides precise, exact annealing for your cartridge brass. Precision annealing can both improve reloading consistency and extend brass life dramatically. We know some 30 BR shooters with AMP annealers who have reloaded their cases over 20 times. In this video F-Class John explains the features of the AMP Mark II DB machine and shows how to create a “profile” for your brass that can be logged in the machine’s memory.

Rifle Front Rest Reviews — For F-Class and Benchrest

If you need a front rest for Benchrest or F-Open competition, this is a must-watch video when you are starting to shop. F-Class John reviews the features of numerous modern joy-stick front rests: SEB Neo-X (2:00 time-mark), SEB Min-X (tripod rest, 10:10 time-mark), 21st Century Hybrid Rest (19:54 time-mark), Rodzilla T-Rex (26:13 time-mark), Lenzi (33:58 time-mark), Caldwell Fire Control (37:26 time-mark). John has shot off most of these rests and his describes optional features on the products. The price range is significant — from about $249.99 for the Caldwell to $2000.00+ for some of the premium rests.

Micron Micrometer Seating Dies from Bullet Central

Micron dies are made with high quality and superb functionality. If you are looking for a premium micrometer-adjustable seating die, the Microns are definitely worth considering. These dies are offered by Bullet Central for a wide variety of cartridge types from .22 up to .30 calibers. Along with standard cartridge types such as .284 Win, 7mm WSM, 7mm RSAUM, .308 Win, and 300 RSAUM, Micron makes seaters for popular competition cartridges such as 22 GT, 6mm PPC, 6mm BR, 6 Dasher, 6 BRA, and 6 GT. At $325.00, these Micron dies are very pricey, but you can use Code MICRON15 at Bullet Central to save 15% on your Micron die purchase.

SEB NEO-X and Rodzilla Raptor Front Rests

This video covers two outstanding front joystick rests, the SEB Neo-X and the Rodzilla Raptor. Both of these rests work great for both benchrest and F-Class shooters, centerfire and rimfire. Build quality is outstanding for both rests. Tester F-Class John observes: “Both are great units and user preference will really dictate which to get. I own both and find they give me consistent target acquisition.” To learn more about these two excellent front rests, visit TheRodzilla.com and/or SEB Rests USA.

AutoDod IDOD Powered Neck-Turning Machine

Here is F-Class John’s review of the impressive AutoDod IDOD machine, the most sophisticated neck-turning machine on the planet. This F-Class Products machine uses twin precision cutter tips to turn case necks inside and out quickly and efficiently, with superior precision. The cases are held securely in a precision-machined spindle attached to an electric motor. Twin blades move precisely during the cutting process, milling the necks inside and out. The turned necks come out perfect every time, with the shoulders trimmed exactly (with doughnut removed) as well.

Bix’N Andy Dakota Triggers

This video reviews the popular Bix’N Andy Dakota Triggers sold by Bullet Central. These triggers can do double duty — working for competition AND field use. Starting at $199.99, the Dakota triggers offer excellent performance for the price, and there are models suited for popular factory actions including Remington, Tikka, Sako and more. These triggers are available with integrated safeties. The Dakota trigger is also built to perform in all weather conditions, a nice feature for hunting rifles. For most of the Bix’N Andy Dakota triggers, the pull weight adjusts from 0.88 lbs (400 grams) to 4.41 lbs (2000 grams).

F-Class john tool youtube video reviews press

This video includes a range demo segment where John shows how Dakota triggers function in two of his match rifles. If you think a Bix’N Andy Dakota trigger will work for you, use code FCDAKOTA20 to save 20% on the Dakota purchase price for a limited time.

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August 3rd, 2024

Bullets Spinning Fast Enough? Use Twist Rate Stability Calculator

Berger twist rate calculator

Berger Twist-Rate Stability Calculator
Berger twist rate calculatorOn the Berger Bullets website you’ll find a handy Twist-Rate Stability Calculator that predicts your gyroscopic stability factor (SG) based on mulitiple variables: velocity, bullet length, bullet weight, barrel twist rate, ambient temperature, and altitude. This cool tool tells you if your chosen bullet will really stabilize in your barrel.


CLICK HERE to Go to TWIST RATE CALCULATOR PAGE »

How to Use Berger’s Twist Rate Calculator
Using the Twist Rate Calculator is simple. Just enter the bullet DIAMETER (e.g. .264), bullet WEIGHT (in grains), and bullet overall LENGTH (in inches). On its website, Berger conveniently provides this info for all its bullet types. For other brands, we suggest you weigh three examples of your chosen bullet, and also measure the length on three samples. Then use the average weight and length of the three. To calculate bullet stability, simply enter your bullet data (along with observed Muzzle Velocity, outside Temperature, and Altitude) and click “Calculate SG”. Try different twist rate numbers (and recalculate) until you get an SG value of 1.4 (or higher).

Gyroscopic Stability (SG) and Twist Rate
Berger’s Twist Rate Calculator provides a predicted stability value called “SG” (for “Gyroscopic Stability”). This indicates the Gyroscopic Stability applied to the bullet by spin. This number is derived from the basic equation: SG = (rigidity of the spinning mass)/(overturning aerodynamic torque).

Berger twist rate calculator

If you have an SG under 1.0, your bullet is predicted not to stabilize. If you have between 1.0 and 1.1 SG, your bullet may or may not stabilize. If you have an SG greater than 1.1, your bullet should stabilize under optimal conditions, but stabilization might not be adequate when temperature, altitude, or other variables are less-than-optimal. That’s why Berger normally recommends at least 1.5 SG to get out of the “Marginal Stability” zone.

In his book Applied Ballistics For Long-Range Shooting (3rd Ed.), Bryan Litz (Berger Ballistician) recommends at least a 1.4 SG rating when selecting a barrel twist for a particular bullet. This gives you a safety margin for shooting under various conditions, such as higher or lower altitudes or temperatures.

Story idea from EdLongrange. We welcome reader submissions.
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