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.
The 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 preferrable for flat-based bullets, while G7 is ordinarily a “better fit” for longer, boat-tailed bullets.
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 preferrable 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.
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.]
Nobody wants to fumble around in a dark gun safe. Here’s a very affordable product that will illuminate your safe automatically when you open the door. These magnetic motion-detecting light bars (with 10 LEDs) can be placed on the sidewalls and shelves of your gun safe. As soon as you open the door, the light bars illuminate brightly. When you close the safe door, the LED light bars shut off, saving battery power.
Let there be light. Here’s a great accessory for your gun safe. This “smart” LED lamp turns itself on when you open the door, and off when you close the door. There’s a built-in magnet so you can easily attach the light to the inner walls or “ceiling” of your gun safe. It works, it’’s handy, and it’s inexpensive — just $19.99 for THREE (3) light bars. You even get FREE shipping with orders over $25.00.
Each motion-sensing light bar has 10 LEDs and can provide 12+ hours of light with four AAA batteries (not included). Very versatile, these motion-sensor lamps can also be used in closets, car trunks, trailers, basements, storage sheds — anywhere you need light. This is an “Amazon’s Choice” for motion-sensor lighting.
Motion-Sensing Light Bar With Three Pivoting LED Heads
If you prefer a motion-sensing light system with a black body and dome-type LED lights, consider the Stack-On SPAL-17300. This provides “instant-on” motion-sensor activated illumination with three light heads, which pivot independently for positional lighting. The unit can be mounted via provided mounting plate or Velcro-type panels. This $20.85 SPAL-17300 light system has earned 80% 5-Star ratings.
One of the great thing about shooting is that marksmanship is one of the few sports where physically-challenged persons can compete at the highest level — with some provisions for wheelchair access and mobility. For example, in the world of F-Class competition, Matt Schwartzkopf is one of the best in the nation. Matt, a rangemaster at Ben Avery in Arizona, is a double amputee (below the knee). He hasn’t let that challenge stop him. He has been a Top-10 finisher at major F-Class matches, and was chosen to shoot with F-TR Team USA.
F-TR Team USA member Matt Schwartzkopf is a double amputee below the knee, having had his lower legs removed due to a birth defect. That hasn’t held him back. Matt is an inspiration to us all. He told us: “This condition has not held me back from anything.” Jokingly, he added, “I may not have ‘a leg to stand on’, but that doesn’t mean I can’t still shoot 10s and Xs at 1000.” Matt is living proof that competitive shooting is a sport for all individuals — young and old, able-bodied and physically challenged.
Matt isn’t just a talented shooter — he runs range operations at Ben Avery in Arizona. During a major match, Matt can be seen supervising the firing line, organizing pit crews, and posting match results.
New USA Nationwide Adventure Database for Adaptive Shooters
Here’s a great new opportunity for shooters and sportsmen with physical limitations. The NRA has created a nationwide database of hunting and fishing adventures for individuals with disabilities. There are programs throughout the country with 45+ organizations such as Buckmasters, Freedom Hunters, Hope Outdoors, Hunting with Heroes, and Safari Club International.
“Venturing into the outdoors has long been acknowledged as healing for the body and soul”, said NRA National Adaptive Shooting Programs Manager Dr. Joe Logar, PT, DPT. “These benefits can be even more profound for someone experiencing an illness, injury, or disability.”
NRA’s Hunter Services and Adaptive Shooting Programs have maintained a list of organizations offering people with disabilities outdoor opportunities. Now available in a searchable database, any adaptive shooter can easily choose from adventures such as guided whitetail hunts, chartered fishing trips, and accessible hiking trails anywhere across the country. To find a program, visit the NRA Adaptive Shooting Program’s Hunting/Fishing Trip Database.
NRA Resources for Adaptive Shooting Events
The NRA Adaptive Shooting Program also provides information for organizations planning an event to include person with disabilities. Events may be organized by veterans’ groups, rehabilitation facilities, and gun clubs. For more information visit AdaptiveShooting.nrahq.org.
Adaptive Shooting Programs in the United Kingdom
Across the pond, the National Rifle Association of the United Kingdom (NRAUK) also has adaptive shooting programs. The NRA.ORG.UK website has a wealth of information for disabled shooters.
The NRAUK states: “There are many different types of target shooting available for people to try in Great Britain. Some of them are readily accessible to disabled people, others less so. Also, shooting clubs and facilities do not all cater for every discipline; some only offer one, whilst larger complexes can cater for many of them. The only place in the country where almost all disciplines can be tried is Bisley Camp in Surrey. Access to the outdoor ranges is being improved all the time, although most are already accessible.
If the disciplines that you particularly fancy are not suitable for your type of disability at the moment, or are not currently available in your area, do not give up hope! The key skills for target shooting are very similar for all disciplines, so you could start with a different but similar option, learn those key skills, and take up your first choice when it is available to you.”
Making Ranges Suitable for Disabled Shooters
The latest edition of NRA Club Connections magazine has a feature on Adaptive Shooting. This article explains how range owners can make their lines of fire more accessible with the addition of a simple mat.
Many of the Labor Day Sales have terminated — but don’t fret. We’ve found some Brownells Discount codes that can still save you 10% on your purchases, PLUS entitle you to FREE Shipping. You will want to check out Brownells current Discount Codes. These Codes will qualify you for significant savings plus FREE Shipping on guns, ammo, parts, and reloading components. Use these Codes during check-out and the savings will reduce your net cost. Get up to $20 off on a $200 purchase — that’s a 10% savings. Plus the free shipping/handling could save you another $10-$20 easy. NOTE: Some of these discount codes may expire at any time, so don’t hesitate. If one Code doesn’t work, try another.
Can’t get enough gun content on your home computer? Now you can stream informative audio broadcasts to your mobile device. In addition to its popular weekly TV shows, Shooting USA now offers podcasts on gun topics. These podcasts feature interviews with ace shooters, notable gunsmiths, and leading firearms industry executives. There are now 141 Shooting USA Podcast episodes available for streaming. Or you can download a podcast to your mobile device for later listening. All Shooting USA Podcast content is free. Use these links to access all Shooting USA Podcasts (123 audio shows):
Now you can listen to timely and entertaining Shooting USA Podcasts, hosted by Jim and John Scoutten. They are available on both Podbean and iTunes.
Here are five of our favorite Shooting USA Podcasts. These include interviews with G.A. Precision owner George Gardner, legendary shooter Jerry Miculek, and ace pistolero Max Michel, who may be the fastest handgunner on the planet. Click each graphic to launch the PodBean player page for that Podcast.
Watch Max Michel Speed Drill (This Guy is Blazing Fast!)
The Civilian Marksmanship Program (CMP) Oklahoma Games are slated for October 7-13, a month away. Match shooters from the middle of the country should consider attending the popular annual event held at the Oklahoma City Gun Club. CMP OK Games Registration is still open! Note — this match is not just for seasoned competitors. There will be a Small Arms Firing School, and the Oklahoma Games will also feature a New Shooter Clinic for those who have never fired in a CMP Games match.
Previously held in April, the CMP Oklahoma Games will feature the popular M1 Garand, M1 Carbine, Springfield, Vintage/Modern Military, Rimfire Sporter, and Vintage Sniper Rifle matches. Pistol matches, such as the As-Issued 1911, Military & Police Service Pistol and .22 Rimfire Pistol will also be held throughout the week. The CMP Cup Matches will again be held at this Travel Games event. This include two days of invididual competition, followed by a 4-Man Team Match, and EIC Service Rifle Match.
Electronic Targets Allow Faster Relays and No Pit Duty!
High Power competitions will be fired on CMP Targets, an electronic target system that plots shot placement in real time, and eliminates the need for pit duty — allowing quicker matches with less physical labor. Shot locations/scores appear on remote monitors placed at each shooting location.
Along with competitive matches, a rifle Small Arms Firing School (SAFS) is scheduled to instruct beginning and experienced marksmen in the classroom and on the firing line, with the help of CMP staff and certified instructors. Those in attendance will learn rifle handling, shot technique and safety, followed by firing in an actual M16 EIC match.
Match Awards will be distributed each day. All participants are invited to the annual BBQ where shooters can make friends and mingle with fellow participants and CMP staff. For some the Oklahoma BBQ is the highlight of the event.
About the CMP Travel Games
The CMP Travel Games are regional competitions held in different corners of the country throughout the year, featuring exclusive CMP rifle and pistol outdoor events. A common part of the CMP schedule for the last decade, the Games are centered around recreation-oriented competition and educational activities that are designed to accommodate experienced marksmen as well as those just beginning the sport.
Trigger images from PrimaryArms.com, which sells all the triggers reviewed here: Geissele, Elftmann, Timney, and ALG Defense.
Are you thinking of upgrading the trigger system for your AR-platform rifle? There are dozens of options available, from $45 up to $300. Thankfully, Brownells has created video reviews of some of the more popular AR trigger options from Timney, Geissele, and ALG Defense. And we included a video review of the highly-regarded Elftmann Match Trigger. If you want the best solution for Service Rifle competition, you might favor the Geissele. For ease of installation, it’s hard to beat the Timney, a “drop-in” module. Like the Timney, the super-smooth Elftman is a drop-in module. At $249.00 it’s pricey, but it is one of the best AR triggers out there. If you’re on a tight budget, the best “bang for your buck” may be the “Perfected Mil-Spec” ALG which starts at around $45.00.
Multiple AR Triggers, including the Elftmann and Geissele, Are Reviewed in this Video
Though pricey ($249.00 at PrimaryArms.com), we really like the Elftmann AR trigger. It combines the best of both worlds — the precision and smoothness of the Geissele with the Timney’s ease of installation. This single stage trigger is user-adjustable from 2.75 to 4 pounds pull weight. It is offered with either straight or curved trigger blade. Primary Arms says: “The amazingly short take-up, glass-rod crisp break and [near-zero] over-travel can be compared to the finest custom 1911 triggers.”
Geissele Enhanced Two-Stage Trigger
Geissele makes a variety of quality AR trigger sets both single-stage and two-stage. Many High Power competitors like the two-stage Geissele trigger. This delivers a repeatable, controlled pull through the first stage with a very clean break in the second stage. The Super Dynamic Enhanced Trigger, shown above, features a distinctive, trigger blade. Reviewer Thomas Conroy says: “The flat surface is very easy to press against. Both stages are light and very distinct.”
Timney Drop-In Trigger Module
This trigger module is available for both the AR15 and the AR10 platform (see above video). Timney triggers are easy to install and come with multiple pin size and pull-weight options. Reviewer Thomas Conroy confirms that the single-stage Timney “breaks cleanly and crisply. This trigger is modular, meaning that the trigger, sear, hammer, and spring are all encased in a bright, shiny yellow aluminum housing.”
ALG Defense Trigger — Higher-Quality Basic AR Trigger
According to Thomas Conroy, ALG triggers “are the perfected version of the standard, non-adjustable mil-spec original trigger. They have the same geometry, but are made to higher quality standards, and come with … hardened and smoothed-out sear contact surface to eliminate all grittiness.” These are also offered in a nickle-boron coated version. Available for under $45.00, the ALG is a well-made, low-cost option for shooters who want a better factory-type trigger system.
For More Information about These Triggers
Learn more about Geissele, Timney and ALG triggers, plus two more AR trigger options (CMMG and Rock River Arms) in a Trigger Comparison Review by Thomas Conroy on Ammoland.com.
Congratulations to John Mullins, the new 2019 NRA Smallbore Silhouette Hunter Rifle National Champion! Mullins tied for first place with fellow Lapua team member Dustin Flint. Then, in a dramatic shoot-off, Mullins shot 107/120 to edge out team-mate Flint. Notably, both men used Lapua .22 LR rimfire ammunition. Mullins’s ammo choice was Lapua Midas+.
The 2019 NRA National Silhouette Smallbore Championships took place August 4-6, in Ridgway, Pennsylvania. Matches consist of 3 x 120 round relays, all fired from the standing position. For each relay, shooters engage ten chickens at 40 meters, ten pigs at 60 meters, ten turkeys at 77 meters, and ten rams at 100 meters.
Champion Mullins Had Pre-tested His .22 LR Ammo at Lapua Test Center
When asked what was most critical to capturing the title, Mullins stated, “Lapua ammunition was the key factor in my success. I visited the Lapua Rimfire Test Center in Mesa, AZ and paired the most accurate ammunition with my rifle.” Mullins found that Lapua Midas+ outperformed all other options at 50 and 100 meters in the Lapua test tunnel, shown below.
Above is the Lapua Rimfire Testing Facility in Mesa, Arizona. This allows measurements at both 50m and 100m for the same shot. Later this fall Lapua will open a new Test Center in Marengo, Ohio with identical capabilities. For more information regarding ammo testing at Lapua’s USA Rimfire Test Centers, email Lapua here: rimfiretest [at] capstonepg.com
We love it when family members shoot together. It’s a great way to pass knowledge from generation to generation. Last week we featured a 10-year old boy, his father, and his grandfather who all shot a match together. Three generations! That was the young man’s first benchrest shooting match. Story HERE.
This week we are showcasing the Murdica clan. Our friend Lou Murdica was in Coastal Southern California this week. Grandpa Lou had taken two of his granddaughters to SoCal to enjoy the beach, and to shoot an F-Class match at Camp Pendleton.
Lou reports: “I took my two granddaughters (ages 12 and 14) to shoot their first-ever F-Class match! we went to Camp Pendleton yesterday and shot the 1000-yard match. This was the first time the girls had ever shot on the ground. They made me proud!”
Both girls shot very well as you can see from these targets. Angelina used a .284 Win rifle, while Bella used Lou’s 6.5×55 Improved. Both are top-level F-Open rigs. Lou said conditions were fairly challenging — with about 4 MINUTES of wind.
There were some interesting comments from Lou’s Facebook Friends:
“Lou you best quit shooting now while you can still beat them!” — Larry Bartholome (Editor: Larry B. is a past F-Class National Champion)
“Wow — just 1 point separation for the girls. Keep em in the ‘X’ girls! Good job!” — Anthony Smith
“Yea for Bella and Angelina. Such a proud grandpa!” — Kate White
All in the Family — Shooting is a Fun Hobby
Lou Murdica has also shot Benchrest Matches with his grand-children. This photo captures Grandpa Lou at Ben Avery Range in Arizona with more family members.
Camp Pendleton (California) Map
The Camp Pendleton USMC base is located on the coast between Los Angeles and San Diego. Camp Pendleton’s range is a great place to shoot if you have the opportunity some day.
At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, optics, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. Stocky’s Stocks — End of Summer Sale, Stocks $188.88 and up
Need a stock for a gun project, or want to re-stock a factory rifle? Now is a great time to get a hunting, tactical, or competition stock from Stocky’s Stocks. During Stocky’s End of Summer sale you can buy a very high-quality Long Range Composite (LRC) stock with Accublock for Rem 700 actions for just $188.88, or $198.88 with deluxe Camo finish. Stocky’s nice Thumbhole Composite stock is $219.99. And if you have a Ruger 10/22, Stocky’s sells fine laminated wood EuroStocks for just $188.88.
2. LockedLoaded.com — Howa Flag Chassis Rifle, $999.99
What better way to celebrate Labor Day than with a Stars and Stripes rifle? Legacy Sports offers a special American Flag Chassis Rifle with a USA flag-theme red, white, and blue Cerakote finish and 3-chamber muzzle brake. Components include APC modular chassis and Luth-AR adjustable butt-stock. This special edition INCLUDES Optic — a Nikko 4-16x50mm scope. The 6.5 Creedmoor version is on sale now for just $999.99 at LockedLoaded.com! Note: You need to act soon — these special American-flag editions with scope are almost sold out!
3. Primary Arms — $20-$60 OFF Walker’s Ear Protection
As part of its Labor Day Weekend Sale, Primary Arms has discounted all its Walker Ear Muffs. Get a great deal on quality ear protection. Save up to $60.00 on earmuff products. For example the Razor Slim Muffs are marked down from $69.99 to $33.99, a $33 savings. Primary has also slashed prices on Glock parts, AR parts, tactical packs, and scopes. Plus you can get FREE Shipping on the entire order when you buy a riflescope or Red Dot optic.
Here is a very nice .22 LR pistol with a fine trigger for under $200.00. Everyone should own a rimfire handgun, and here’s one that’s an exceptional value. As a Labor Day Special, Palmetto State Armory is selling the TX 22 for $249.99. Fill out the paperwork for the Taurus factory rebate, and you get $50.00 Cash Back. That lowers your net cost to just $199.99 — a great price for a fine .22 LR handgun.
Taurus advises: “Engineered to deliver best-in-class accuracy and reliability, the Taurus TX 22 rimfire polymer sporting pistol shoots and feels every bit like a custom-tuned competition model — without any costly upgrades[.]” To qualify for the rebate, the TX 22 must be purchased between July 1 and September 30, 2019.”
5. Midsouth — Rock Chucker Supreme Reloading Kit, $299.99
Everything you see above can be yours for just $299.99. Great Deal. Right now, Midsouth is selling the Rock Chucker Supreme Master Reloading Kit for $299.99, a fine price considering all the hardware you get: Press, Primer Tool, Scale, Powder Measure, Loading Tray, Reloading Manual and more. Heck, the Rock Chucker press alone is worth $165.00+. This is good starter kit for any reloader with sturdy items (such as the Rock Chucker press), that will last a lifetime.
6. Walmart — EZShoot Rifle Case with Shoulder Straps, $28.99
We like this versatile bag for hunting and varmint trips. The 47.2″ EZshoot gun case provides good protection for scoped rifles with up to about 27″ barrels. The large pockets will hold binoculars, laser rangefinder, windmeter, ammunition, and other gear. The big bonus is this inexpensive carry case includes comfortable, adjustable shoulder straps. That makes it easy to carry everything from your vehicle to your shooting area. You get all this functionality for under twenty-five bucks. Walmart currently offers this 47.2″ case for just $24.99 with FREE shipping to your residence.
7. Cabela’s — Hunting “Kick-Off” Sale — Save Up to 40%
Now through September 8, 2019, you’ll find some great bargains at Cabelas.com. This major sporting goods dealer is running a Hunting Season “Kick-Off Sale” through September 8, 2019. There are big savings on shotguns, hunting boots, ammo, game cameras, GPS units, and more. Some items are 40% off.
8. Brownells — CCI .22 LR Ammo, $24.99/500 or $90.89 for 2000
Here’s a great deal on big-name, rimfire ammo. Right now you can get a 500-round pack of CCI Standard Velocity 40gr LRN ammo for just $24.99. That works out to just five cents ($0.05) per round. But it gets even better. If you purchase at least four 500-rd packs (2000 rounds total), and add a small item to get the order over $100.00 you also get FREE shipping and a $10.00 discount with CODE MDX. With that “MDX” discount code, your total price is just $90.89 for 2000 rounds delivered, or 4.5 cents per round! That’s a great deal on reliable CCI ammo.
9. Powder Valley — FREE HazMat with $149+ Powder Purchase
Powder Valley Inc. is one of the best sources for reloading components. And today, Labor Day, you can get FREE HazMat if you purchase at least $149.00 of Hodgdon, IMR, and/or Winchester powders. If you want to take advantage of this deal, don’t dawdle. FREE Hazmat offer expires Monday 9/2/2019 at 11:59 pm CST.
10. Amazon — MTM Cleaning Rod Case, $22.89
Good cleaning rods are expensive and can be easily damaged if you’re not careful. To protect those valuable cleaning rods, we recommend the MTM cleaning rod case which holds four rods as well as cleaning supplies. This case protects your rods both at home and while traveling. With this handy, durable case you can stop worrying about bending or breaking those important cleaning rods.
11. Amazon — Two Rolls of 3″ Neon Target Stickers, $12.99
We like these bright, Neon EasyShot 3″ target stickers. They are big enough to see easily at 600 yards, giving you a 1/2 MOA target center at that distance. For $12.99 at Amazon.com, you get 250 3″-diameter self-adhesive centers (125 targets per roll) that stick to almost any surface The high-contrast fluorescent red/orange color provides an excellent HI-VIZ aiming point, along with good contrast for bullet holes that fall within the 3″ circle. To help line up your reticle cross-hairs, the target centers feature black markers at 3, 6, 9, and 12 0’Clock. NOTE: These stickers qualify for FREE Shipping.
The 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.
Drag Models — G7 is better than G1 for Long-Range Bullets
F-TR Team USA member Matt Schwartzkopf is a double amputee below the knee, having had his lower legs removed due to a birth defect. That hasn’t held him back. Matt is an inspiration to us all. He told us: “This condition has not held me back from anything.” Jokingly, he added, “I may not have ‘a leg to stand on’, but that doesn’t mean I can’t still shoot 10s and Xs at 1000.” Matt is living proof that competitive shooting is a sport for all individuals — young and old, able-bodied and physically challenged.
Trigger images from 
Here is a very nice .22 LR pistol with a fine trigger for under $200.00. Everyone should own a rimfire handgun, and here’s one that’s an exceptional value. As a Labor Day Special, Palmetto State Armory is selling the 
