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July 13th, 2023

NRL22 and NRL22X — Fun, Affordable Rimfire Tactical Matches

NRL22 rimfire tactical steel targets KYL JC Steel hangers

The National Rifle League (NRL) started off sponsoring major centerfire tactical matches, similar to PRS competitions. That proved successful so the NRL added a .22 LR Rimfire series, called NRL22. The NRL22 rimfire discipline has been a major success, as rimfire guns are fun to shoot and ammo is very affordable. Now there are way more NRL22 matches than NRL centerfire competitions. The most popular NRL22 matches have drawn up to 200 rimfire competitors. And now there is a companion rimfire long-range series, NRL22X. Learn more about NRL22 and NRL22X at NRL22.org.

NRL22 rimfire tactical steel targets KYL JC Steel hangers

NRL22 rimfire tactical steel targets KYL JC Steel hangersNRL22 is a great way to get into competition shooting with minimal expense. There are six (6) classes: Base, Open, Ladies, Young Guns (8-16), Old Guns/Adaptive, and Air Rifle. Base Class is for the budget-minded shooter — the combined MSRP of Rifle and Optic may not exceed $1200.00 (so you could spend $700 on a rifle and $500 on a scope for example). That keeps the sport affordable. Open, Ladies, Young Guns, Old Guns, and Air Rifle Classes have no price limits on Rifle and Optic. Visit NRL22.org to find an NRL22 match near you.

The NRL also sponsors NRL22X matches. These involve significantly longer distances for greater challenge. In 2023 there were 15 major NRL22X matches, culminating in the NRL22/NRL22X National Championships in Maxton, NC on July 7-9, 2023.

NRL22 NRL22X championship maxton nc

The two videos above from Long Range Shooters of Utah feature footage from the January 2019 course of fire from the NRL22 Rimfire Competition Series. Note the snow-capped hills in the lower video. Useful commentary explains how competitors establish their shooting positions.

NRL22 rimfire tactical steel targets KYL JC Steel hangersHow to Participate in NRL22 and/or NRL22X
If you want to get started in NRL22 or NRL22X competition, you’ll need an NRL22 annual membership. These run from $25-$60 depending on class and discipline. CLICK HERE for annual membership information.

NRL22 Membership Benefits Include:
– Eligibility to participate in all NRL22 matches
– Eligibility to participate in all NRL22X matches
– Welcome gift (not all welcome gifts are the same)
– Scoring and Ranking for all events
– Newsletters and updates
– Eligibility for special NRL22 raffles and giveaways
– Access to special NRL discounts from participating sponsors

NRL22 Publishes Monthly Courses of Fire
This video from a Utah NRL22 Match features shooters from four rimfire classes. With the NRL22 program, scores from from local matches like this are ranked against scores from other matches nationwide. In advance of match dates, NRL22.org publishes 5 courses of fire to be used in that month. Each course of fire will always include 2 prone stages, 1 positional, 1 barricade, and a fifth that can be any of those. Details of the course of fire, including target distances, target sizes, time limits, and barricade profiles, are listed at NRL22.org.

Official NRL22 Rimfire Steel Target Package
To facilitate consistent NRL22 match scoring, there is a popular NRL22 Rimfire Steel Target Kit. Crafted by JC Steel Targets from AR500 steel, this kit from JC Steel Targets includes 8 hanging targets, 4 KYL (Know Your Limits) targets, plus all needed hangers. That’s lot of steel and hardware for $394.95. There is also an official 2020/2021 Expansion Target Package with 5 more hanging targets for $79.95.

NRL22 rimfire tactical steel targets KYL JC Steel hangers

About NRL22 Tactical/Practical Competition
NRL22 tactical precision Airgun Air rifle classThe goal of NRL 22 is to make Precision Rifle competitions more available to every community. However, nearly all localities have access to 100-yard ranges and most shooters own a .22 LR rifle. The NRL22 program is designed so any facility with a 100-yard range can host matches. Participants at local NRL22 events can then attend a National Championship. NRL22 now has six classifications: Open, Base, Ladies, Young Guns (8-18 age), Old Guns/Adaptive, and Air Rifle. The NRL22 and NRL22X disciplines are continuing to grow in popularity.

NRL22 rimfire tactical steel targets KYL JC Steel hangers

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July 13th, 2023

G1 vs. G7 Ballistic Coefficient Models — What You Need to Know

G1 G7 BC drag models

Over the past 12 months, this article was one of the TOP TEN most-read Daily Bulletin features. We’re reprising it today for those who may have missed it the first time. The above diagram comes from a TiborasurasRex YouTube Video comparing G1 and G7 BC models. CLICK HERE to watch the video.

G1 G7 BC drag modelsThe better, up-to-date ballistics programs let you select either G1 or G7 Ballistic Coefficient (BC) values when calculating a trajectory. The ballistic coefficient (BC) of a body is a measure of its ability to overcome air resistance in flight. You’ve probably seen that G7 values are numerically lower than G1 values for the same bullet (typically). But that doesn’t mean you should select a G1 value simply because it is higher.

Some readers are not quite sure about the difference between G1 and G7 models. One forum member wrote us: “I went on the JBM Ballistics website to use the web-based Trajectory Calculator and when I got to the part that gives you a choice to choose between G1 and G7 BC, I was stumped. What determines how, or which one to use?”

The simple answer is the G1 value normally works better for shorter flat-based bullets, while the G7 value should work better for longer, boat-tailed bullets.

G1 vs. G7 Ballistic Coefficients — Which Is Right for You?
G1 and G7 refer both refer to aerodynamic drag models based on particular “standard projectile” shapes. The G1 shape looks like a flat-based bullet. The G7 shape is quite different, and better approximates the geometry of a modern long-range bullet. So, when choosing your drag model, G1 is preferable for flat-based bullets, while G7 is ordinarily a “better fit” for longer, boat-tailed bullets.

G1 G7 Ballistic coefficients

Drag Models — G7 is better than G1 for Long-Range Bullets
Many ballistics programs still offer only the default G1 drag model. Bryan Litz, author of Applied Ballistics for Long Range Shooting, believes the G7 standard is preferable for long-range, low-drag bullets: “Part of the reason there is so much ‘slop’ in advertised BCs is because they’re referenced to the G1 standard which is very speed sensitive. The G7 standard is more appropriate for long range bullets. Here’s the results of my testing on two low-drag, long-range boat-tail bullets, so you can see how the G1 and G7 Ballistic coefficients compare:

G1 BCs, averaged between 1500 fps and 3000 fps:
Berger 180 VLD: 0.659 lb/in²
JLK 180: 0.645 lb/in²

The reason the BC for the JLK is less is mostly because the meplat was significantly larger on the particular lot that I tested (0.075″ vs 0.059″; see attached drawings).

For bullets like these, it’s much better to use the G7 standard. The following BCs are referenced to the G7 standard, and are constant for all speeds.

G7 BCs:
Berger 180 VLD: 0.337 lb/in²
JLK 180: 0.330 lb/in²

Many modern ballistics programs, including the free online JBM Ballistics Program, are able to use BCs referenced to G7 standards. When available, these BCs are more appropriate for long range bullets, according to Bryan.

[Editor’s NOTE: BCs are normally reported simply as an 0.XXX number. The lb/in² tag applies to all BCs, but is commonly left off for simplicity.]

Permalink Bullets, Brass, Ammo, Competition, Tech Tip No Comments »