You can do your own experimental calculations using JBM Online Ballistics (free to use). Here is an extreme example, with two printouts (generated with Point Blank software), one showing bullet trajectory at sea level (0′ altitude) and one at 20,000 feet. For demonstration sake, we assigned a low 0.2 BC to the bullet, with a velocity of 3000 fps.
One of our readers asked “What effect does altitude have on the flight of a bullet?” The simplistic answer is that, at higher altitudes, the air is thinner (lower density), so there is less drag on the bullet. This means that the amount of bullet drop is less at any given flight distance from the muzzle. Since the force of gravity is essentially constant on the earth’s surface (for practical purposes), the bullet’s downward acceleration doesn’t change, but a bullet launched at a higher altitude is able to fly slightly farther (in the thinner air) for every increment of downward movement. Effectively, the bullet behaves as if it has a higher ballistic coefficient.
Forum member Milanuk explains that the key factor is not altitude, but rather air pressure. Milanuk writes:
“In basic terms, as your altitude increases, the density of the air the bullet must travel through decreases, thereby reducing the drag on the bullet. Generally, the higher the altitude, the less the bullet will drop. For example, I shoot at a couple ranges here in the Pacific Northwest. Both are at 1000′ ASL or less. I’ll need about 29-30 MOA to get from 100 yard to 1000 yards with a Berger 155gr VLD @ 2960fps. By contrast, in Raton, NM, located at 6600′ ASL, I’ll only need about 24-25 MOA to do the same. That’s a significant difference.
Note that it is the barometric pressure that really matters, not simply the nominal altitude. The barometric pressure will indicate the reduced pressure from a higher altitude, but it will also show you the pressure changes as a front moves in, etc. which can play havoc w/ your calculated come-ups. Most altimeters are simply barometers that read in feet instead of inches of mercury.”
As Milanuk states, it is NOT altitude per se, but the LOCAL barometric pressure (sometimes called “station pressure”) that is key. The two atmospheric conditions that most effect bullet flight are air temperature, and barometric pressure. Normally, humidity has a negligible effect.
It’s important to remember that the barometric pressure reported on the radio (or internet) may be stated as a sea level equivalency. So in Denver (at 6,000 feet amsl), if the local pressure is 24″, the radio will report the barometric pressure to be 30″. If you do high altitude shooting at long range, bring along a Kestrel, or remember to mentally correct the radio station’s pressure, by 1″ per 1,000 feet.”
The mainstream media hates guns. So you won’t find pro-firearm content on NBC, CBS, CNN, or ABC. Thankfully we have independent cable networks such as the Outdoor Channel. And Wednesday nights are a visual feast for shooting sports enthusiasts.
On Wednesday nights, from 7:30 to 11:30 pm, the Outdoor Channel delivers an entire evening of great gun programming. You can watch FIVE different shows: American Rifleman, Guns & Ammo, GunnyTime, Shooting USA, and Shootout Lane. Here are some popular samples from these shows:
Shooting USA — Understanding Parallax in Scopes This Shooting USA Pro Tip defines parallax and explains how to adjust your scope.
Guns & Ammo TV — Hornady Bullets, Nikon Black Force Scopes, Suppressors 101 This episode reviews multiple products — bullets, optics, and suppressors.
American Rifleman — The Guns of The Vietnam War, Part 3 Major John L. Plaster discusses Marine snipers in Vietnam and their rifles.
Sierra Bullets has recently released load data for the 6mm Creedmoor cartridge, a necked-down version of the 6.5 Creedmoor, a popular PRS, tactical, and hunting cartridge. Sierra has released very comprehensive 6mm Creedmoor load data, covering fifteen (15) different bullets from 55 to 110 grains. NOTE: Hornady-brand brass was used for Sierra’s 6mm Creedmoor load tests, not the newer, stronger Lapua 6.5 CM brass with small primer pockets. Hand-loaders using Lapua 6.5 Creedmoor brass necked to 6mm may have to adjust their loads.
Sierra writes: “As soon as the 6.5 Creedmoor was released in 2007, a 6mm version was being envisioned. After the 6mm Creedmoor demonstrated its worth at 1000 yards it began to catch the attention of Precision Rifle Series (PRS) competitors. The 6mm/6.5 Creedmoor is a great fit for those looking for an AR platform-friendly cartridge. It delivers velocities very similar to the .243 Win and yet fits the AR10 magazine length[.] The 30-degree shoulder makes this a very efficient case and helps prolong case life as well. The 6mm/6.5 Creedmoor works well with powders such as H4350, RE-17, and Ramshot Hunter for heavier long-range bullet weights. Slightly faster powders such as RE-15, Win 760, and Vihtavuori N540 work well with lighter weight bullets.”
Sierra Bullets Tested for 6mm Creedmoor Load Data
55gr BlitzKing (#1502)
60gr HP (#1500)
70gr HPBT (#1505)
70gr BlitzKing (#1507)
75gr HP (#1510)
In developing its 6mm Creedmoor load data, Sierra tested a very wide selection of propellants, two dozen overall. For the smaller bullets, fast-burning powders such as Benchmark, H4895, and CFE223 were tested. For the heavier 100+ grain bullets, Sierra tested a selection of medium-burn-rate powders including H4350, Reloder 16, Reloder 17, Varget, and Superformance. Sierra did a very thorough job. We know this information will be welcomed by 6mm Creedmoor shooters.
Don’t know what powder to try first? For the 107-110 grain bullets, if you want best accuracy and low ES/SD, our Forum members recommend Alliant Reloder 16 and Hodgdon H4350. If you are seeking max velocity with the 110-grainer, look at Hodgdon Superformance and Reloder 19.
Here are Sierra’s 6mm Creedmoor Load Data Charts for the 107gr MK and 110gr MK. There are a half-dozen other tables for lighter-weight bullets.
Tune in to the TV tonight (7/31/19) — there’s some impressive multi-gun action on the Outdoor Channel. Shooting USA features the NRA’s World Shooting Championship (WSC), held at the Peacemaker National Training Center in West Virginia. This unique, multi-discipline Pro-Am Competition draws 300 shooters, with all firearms provided by manufacturers. Designed to find the “best at everything that goes bang”, the WSC combines scores from a dozen disciplines to select the best all-around shooting champion. What’s at stake? Glory plus over $250,000 in cash and prizes!
Shooting USA airs Wednesday, 7/31/19 at: 9:00 PM Eastern and Pacific; 8:00 PM Central
WSC Highlight Video with Competitor Interviews:
To succeed at the WSC, competitors must be skilled with all types of firearms, bolt-action rifles, semi-auto rifles, shotguns, semi-auto pistols, and even single action six-guns. For every stage, the firearms are provided by match sponsors, so no competitor gains an advantage by using his or her own guns.
The challenges range from sporting clays, to PRS-style rifle stages, to Bianchi plate racks shot with handguns, and even a simulated Olympic Biathlon competition. That requires that competitors be fit and have a diverse skill set — you need to be outstanding with every type of firearm.
This episode also feature a history segment, a gun-building segment, and a Pro Tip from Maggie Reese. Shooting USA showcases the Crockett rifles from Tennessee that armed Andrew Jackson’s Militia on his way to stop the British in New Orleans. Then, John Scoutten finishes a JP Enterprises AR accuracy build. Lastly Maggie Reese shows how to start a pistol stage from a table with an empty gun.
Maggie Reese now shoots for Team Ruger along with Doug Koenig.
Maggie notes: “We spend a lot of time in competition working a draw from a holster position, but sometimes when you go to competition you will have to do an unloaded or loaded table start. So I want to take you through some techniques on how to maximize that first shot and get an efficient time.”
Looking downrange at the 600-yard targets. All Camp Perry photos courtesy Dennis Santiago.
Our friend Dennis Santiago is at Camp Perry this summer. Yesterday (7/29/2019) he competed in the historic National President’s 100 Match. This is a huge event. in recent years, there have been over 1000 ranked competitors from throughout the nation, making this one of the biggest rifle events of the year.
The President’s 100 Rifle Match is richly steeped in history. This unique match was first held in 1878. Here’s the view from the line at 600 yards:
The 2017 President’s 100 Rifle Match was a tightly-fought affair, with the top five shooters separated by just two points. SSG John Cogshall (ARNG) shot superbly to take the top position and President’s Rifle Trophy. The top 100 competitors overall in the President’s Rifle Match are designated as the President’s 100. They receive President’s 100 medallions and certificates. GET full match results.
Top Five Shooters at 2019 National President’s 100 Match
1. SSG John Cogshall (ARNG) 390-14X (Trophy Winner)
2. SGT Thomas Colyard (SC, USMC) 389-16X
3. Sean Prosser (PA) 389-12X
4. Greg Troxell (TX) 388-11X
5. John Hefner, (TX) 388-13X
Note: SFC Brandon Green, USAMU, who holds the course record at 400-20X, also shot a 388-13X but was ranked sixth by tie-breaker.
President’s 100 Shoot Off! — The Top 20 shooters face off while everyone watches, wishing the best for every one of them. This is what attending a family gathering is for us.
President’s 100 Course of Fire
There is a three-yardage, four-stage Course of Fire for the President’s Rifle Match Course of Fire. Firing is done on the SR target at 200 and 300 yards and the MR target at 600 yards. Scores in stages 1-3 determine the President’s 100 and the final rankings of competitors in 21st place and below. Scores in stages 1-4 determine the match winner and the final rankings in places 1-20. If there is a tie for first place (equal total and X-count), the tied shooters will continue to fire one-shot-at-a-time until the tie is broken. No sighters are permitted in National Trophy Rifle Matches.
Origins of the President’s Match The National Rifle Association’s President’s Match was instituted in 1878, as the American Military Rifle Championship Match. In 1884, the name was changed to the President’s Match for the Military Rifle Championship of the United States. It was fired at Creedmoor, New York until 1891. In 1895, it was reintroduced at Sea Girt, New Jersey. Today, the match is held at Camp Perry, Ohio.
The President’s Match was patterned after the Queen’s Match for British Volunteers. That British competition was started in 1860 by Queen Victoria and the NRA of Great Britain to increase the ability of Britain’s marksmen following the Crimean War.
The tradition of making a letter from the President of the United States the first prize began in 1904 when President Theodore Roosevelt personally wrote a letter of congratulations to the winner, Private Howard Gensch of the New Jersey National Guard.
After a hiatus in the 1930s and 1940s, The President’s Match was reinstated in 1957 at the National Matches as “The President’s Hundred.” The 100 top-scoring competitors in the President’s Match were singled out for special recognition.
If you have been waiting to purchase a chronograph… now is a great time to buy. You can get the affordable MagnetoSpeed Sporter for under $180.00. You can set up this device in a few minutes, and you never have to go downrange to fiddle with a tripod or fuss with wires. The MagnetoSpeed Sporter is simple and effective — a no-hassle solution.
See MagnetoSpeed Sporter Chronograph Features Reviewed in Video
We’re impressed by the Sporter chrono, as are other shooters — this unit is very popular. Like the MagnetoSpeed V3, the Sporter faithfully records shots, even in complete darkness. Shot strings are recorded digitally and can be transferred to a smart phone via MagnetoSpeed’s XFR accessory (and Apps).
The MagnetoSpeed Sporter chrono is less than half the price of previous MagnetoSpeed models. This is big news for shooters who always wanted a MagnetoSpeed but found the $379.00 cost (for V3 model) too pricey. The new Sporter Chronograph costs just $179.00 at Brownells and $179.00 at Amazon.
The Magnetospeed Sporter offers most of the features of the more expensive models (see chart below for details) and has a updated sensor. MagnetoSpeed says its new Sporter is “Ideal for contoured rifle barrels (sporter barrels) and long-barreled revolvers.” The Sporter Chronograph Kit (shown above) includes: Bayonet Sensor, 3.5 foot Data Cable, Remote Display (with Battery), Strap with thumb nut, Two V-block spacers, and compact storage box.
Q: Will the Sporter Chrono work with thicker barrel (i.e. greater than 1″ diameter)?
A: The manufacturer recommends the $399.00 V3 model for thicker barrels. But, wink-wink, if you have a 1.25″ barrel you can get this to work, based on what we’ve seen.. If you have a really fat barrel (up to 2.0″ diameter), get the V3. Magnetospeed also says the V3 is needed for airguns, shotguns, and muzzleloaders.
Click Image for Full-Screen Photo
The Sporter Chrono attaches quickly and easily. It has a 3.5-foot-long cord, and will work with Muzzle Brakes and Flash-hiders up to 2.7″ long.
Here is something shiny and new for the guy who has to have the latest hardware. Ryan Pierce of “PiercisionRifles.com makes very effective muzzle brakes (aka “Muscle Brakes) that have a clever “self-timing” feature, that allows them to be fitted to multiple rifle barrels. Most of Ryan’s Muscle Brakes are crafted from steel, but he just introduced a slick 5-Port Self-Timing Titanium Brake. Ryan says the self-timing feature of this design allows the buyer to use the same brake on all rifles with the same thread pitch on the muzzle. Check it out:
Ryan reports: “Got the new TITANIUM self-timing 5-port ‘Muscle’ brake spun up on a 300 Norma improved I chambered this morning. The barrel and brake weighs 3.0 pounds total. At just 3.5 ounces, the titanium brake is 3 ounces lighter than the steel version. The Titanium Muscle brake is available in 5/8×24 and 3/4×24 threads. I have some ready to ship in 3/4×24 threads. I’ll have another batch ready to ship in a week or so in 5/8×24 threads.”
Who needs a Titanium brake? Well if you’re putting together a high-tech ultralight hunting rig, this is a nice finishing touch. When shooting off-hand, less weight on the end of the barrel really makes a difference. And if you’ve gone to the expense of fitting a lightweight carbon fiber-wrapped barrel, it may make sense to finish it off with an ultralight titanium brake.
How well does it work? Ryan says with this brake on his 10-lb .300 Norma Improved rifle he can see bullet impacts at 400 yards. That’s with 230-grain bullets launched at 3000+ FPS.
NOTE: Currently these brakes are sold in a 5-port version only. Ryan offers 3-port brakes in steel, but says the weight savings would be only 1 ounce with a Titanium 3-port.
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. Palmetto State Armory — Complete AR Lowers $120-$150
Guys, this is the lowest price we’ve seen for non-blem, name-brand AR-15 platform complete lowers. If you are building an AR for varminting, 3-Gun, or home defense, check out Palmetto’s Going Overboard Sale. Get the MOE FDE Edition for just $119.99. Or for $30 more choose the STR Edition or ACS-L edition, both offered for $149.99. All these models have quality Magpul stocks and grips and include full trigger groups. Use the money you save with these bargain lowers to buy a top-grade barrel for your upper.
2. Brownells — Lapua Scenar-L Bullets
Lapua Scenar-L match bullets are extremely consistent in weight and base to ogive length. In our experience they shoot great, and they definitely deserve a try-out along with Bergers and Sierras. We’ve seen success in various calibers and even found some barrels prefer them over anything else. If you want to try these excellent Lapua projectiles, right now Brownells is selling Lapua Scenar-L bullets at up to 28% off! These discounted Scenar-Ls are offered in .224, 6mm, 6.5mm, 7mm and .308 (30 Caliber) — all the most popular match calibers.
3. Amazon — Tipton Ultra Gun Vise, $125.99
Cleaning and working on your guns requires a solid platform. Most gun cleaning stands aren’t adjustable enough, or are too flimsy. Not so the Tipton Ultra Gun Vise. Weighing-in at about 10 pounds, this beefy gun vise provides a steady base. The frame is metal for strength. It features stout adjustable jaws, specialized AR holder, and several accessory trays. Threaded feet allow the vise to be leveled on your bench (or the ground). With this system you can work on just about anything including bolt-action rifles, AR-platform rifles, shotguns, pistols, and even compound bows and crossbows. To fit 3″-wide forearms you may have to remove or modify the front pad(s). Our Deals Editor, who owns this gun vise, reports: “this is a phenomenal vise — the best anybody makes — it is well worth the $125.99″.
As optics technology advances, scope performance-for-the-price improves too. A good example is Vortex Optics, which offers fine scopes at very reasonable prices. The Vortex 3-9x40mm Tactical has good features and a rock-solid warranty. It’s a lot of scope for $279.99 but now you can grab this versatile Vortex for the crazy low price of $189.49 at Natchez.
5. Bruno Shooters Supply — Berger Bullets at Great Prices
Match season is in full swing — so make sure you don’t run short on bullets. One of our go-to sources for reloading components is Bruno Shooters Supply. Bruno’s just recently updated its website, so you should check out the new features. While you’re there, look at Bruno’s selection of Berger bullets advertised at “lowest prices on the internet”. Berger match bullets are in high demand, but Bruno’s is offering great prices on many popular calibers and bullet weights.
6. EuroOptic — 50% Off Minox with Mauser Rifle Purchase
The Mauser M18 is a proven hunting rifle offered in many popular hunting calibers/cartridge types. If you’re looking for a fine, affordable hunting rifle definitely consider the M18. And for added incentive, right now you can get 50% off a Minox scope with the purchase of a Mauser M18 rifle from EuroOptic.com. CLICK HERE to get the Mauser coupon which you can redeem with Minox USA after your purchase. This is a great promo that can save you a ton of money.
7. Grizzly — 60″ Padded Rifle Case, $40.97
Do you cringe every time you place expensive rifles into old cases that are dirty or damaged? Here’s a great case for long match rifles at a great price. Grizzly is now selling excellent 60″ Bald Eagle rifle cases for just $40.97. These cases are well made, heavily-padded with lots of pockets. They compare favorably to other soft cases costing $65 or more. It can be hard to find quality cases that hold very long rifles. NOTE: Grizzly has other case colors and sizes on sale for a few bucks more.
8. Midsouth — Nosler 6.5 Creedmoor 140gr Ammo, $24.99 per box
Nosler 6.5 Creedmoor ammunition features top-of-the-line 140gr ballistic tip bullets (0.509 G1 BC). These B-Tips feature tapered jackets to control expansion and allow good penetration and a deep wound cavity. These are excellent hunting bullets for deer, antelope, and hogs. Nosler used top-quality brass, powders, and primers for its 6.5 Creedmoor B-Tip ammo. These cartridges have a 2550 FPS Muzzle Velocity.
9. Amazon — Frankford Arsenal Rotary Tumbler Lite, $99.99
Lots of people love wet-tumbling their brass in stainless pins but not everyone want to do it in a giant unit. We found a sweet deal on the Frankford Arsenal Rotary Tumbler Lite. Amazon has this unit on sale for $99.99. This tumbler is small enough to fit on a counter but still big enough to hold 300 pieces of .223 Rem brass. For folks on a limited budget who want to get started with wet tumbling, this is a solid choice.
10. Amazon – Proster Wind Meter, $16.99
This Proster wind meter is a great bargain. The previous model had a very impressive 4.2 star overall rating (with 300+ reviews), and the latest version has some improvements (including a square base so it can stand). Now on sale for just $16.99, this is a very useful tool for a bargain basement price. To provide reliable wind inputs for ballistics calculations, you really do need a Wind Meter. And unlike a costly Kestrel, with this budget wind meter, you won’t feel too bad if it gets lost or misplaced.
No, that’s not two shots — it is FIVE shots, with basically four in one hole and a fifth very slightly over. If that’s not impressive enough, consider this stunning 0.110″ group was shot at TWO HUNDRED yards — the length of two football fields. This amazing group was shot by Jack Neary at the 2019 World Benchrest Championship (WBC) held in Calgary, Alberta earlier this month.
Neary’s 0.110″ 200-yard group establishes a new WBC world record in the Light Varmint (LV) rifle class (10.5-lb max rifle weight). Jack was competing with Team USA “C Squad”, which also captured the WBC 2-Gun Gold Medal in the 4-man Team Championship.
World Benchrest Championships
The World Benchrest Championships are held every two years and attract competitors from over 20 countries. Jack Neary’s .110″ group is now a confirmed WBC 200-yard World Record for smallest 5-shot group. Neary was shooting a 6mm PPC hand-loaded with Vihtavuori N133 powder.
NOTE: This is a record for WBC competition. However, it is slightly larger than current NBRSA and IBS 200-yard Light Varmint (LV) records. The NBRSA LV 200-yard record is 0.075″ set by Johnnie Stewart in 2009. The IBS LV 200-yard record is 0.091″ by David Farrar in 2006. Still, Neary’s 0.110″ 5-shot group is a great accomplishment, set at the highest level of competition, at a match which had very challenging conditions.
Jack stated, “Vihtavuori’s temperature stability and cleaning burning attributes have been instrumental for competitors to achieve world record accuracy in the furthest corners of the world.”
Vihtavuori powders (predominently N133) were used by nearly every competitor (over 90%) during the World Benchrest Championship. VV N133 continues to dominate the short-range benchrest game. Notably, Vihtavuori powders have also been successful in the Extreme Long Range game, with VV powders used by recent KO2M winners. The next World Benchrest Championship will be held in Fall of 2021 in South Africa.
Neary Helps Team USA Win Gold at World Championship
Team Lapua’s Jack Neary, along with his Team USA “C Squad” teammates Harley Baker, Gary Bristow, and Jeff Graves, won the 4-Man Team Gold Medal at the 2019 World Benchrest Championship held in Calgary, Alberta, Canada this past week. Neary’s squad had the best overall Grand Aggregate, 0.2598, for the WBC combined 2-Gun Championship. Team USA “A Squad” took second place with a 0.2646 2-Gun Aggregate. CLICK HERE for WBC Team Championship Results.
All Team USA Gold Medalists used Lapua cartridge cases exclusively at the WBC. Lapua cartridge cases are known for superb quality of construction, using only the finest raw materials and superior annealing processes. Each case is machined to exacting dimensions. Lapua brass is renown for its superior consistency and longevity. The best brass also lasts the longest.
Neary stated, “Lapua cases are the foundation [for] our competition hand-loads[.] When competing at the highest levels against the most talented shooters in the world, we need the absolute best components available. There’s no doubt Lapua helped secure the Gold for Team USA.”
About Lapua and Vihtavuori
Lapua produces the highest-quality small caliber cartridges and components for civilian and professional use. Vihtavuori is renowned for smokeless powders with superb lot-to-lot consistency that deliver superior accuracy Lapua and Vihtavuori are part of the Capstone Precision Group, exclusive U.S. distributor for Berger, Lapua, Vihtavuori and SK-Rimfire products. For more information, visit Lapua.com and Vihtavuori.com.
We know that Competition Machine (Gary Eliseo) makes great chassis systems and Pierce Engineering (John Pierce) makes great actions. But sometimes a project comes together even better than one can imagine. The folks at Pierce Engineering recently completed an Eliseo Tubegun that displayed some mind-blowing accuracy during initial testing. This was a special rifle built to a client’s spec in .22 PPC.
After his team completed the rifle, John Pierce took the Tubegun to the range to make sure everything was working right. The rifle was chambered for the .22 PPC, a known accuracy cartridge. Would this cartridge shoot in this gun? Heck yeah was the answer! The first two shots out of the gun were touching. That was promising enough. But then John drilled a five-shot group that was basically one hole! Here is that target. First two shots upper left, then the five-shot group below and to the right. Chassis-maker Gary Eliseo commented: “that’ll do just fine…”
Disclaimer: John shot some more groups with this Tubegun that were definitely NOT one-holers. That first five-shot masterpiece could not be duplicated. However, we’re told that the rifle shot other groups in the 2s, 3s, and 4s — impressive performance for a rifle designed for prone and position shooting. This shows how well the Pierce action mates to the Competition Machine chassis.
And if the owner ever wants to show off a “wallet group” for his new rifle — well he’s got that, thanks to John’s great trigger-pulling and rifle-building. Using On-Target software we measured that five-shot group at 0.189″ (see photo at right). That’s crazy small for a new gun with zero load development. That’s also a testimony to the quality of the Norma .22 PPC brass.
Why the .22 PPC Chambering?
The customer owns other Eliseo Tubeguns, but wanted something that combined extreme accuracy with very low recoil. He also wanted to be able to shoot factory brass without fire-forming. Norma makes very high-quality .22 PPC cartridge brass that is an easy load and shoot solution. In fact the folks at Pierce Engineering custom-loaded a quantity of .22 PPC ammo for this Tubegun and shipped it off to the customer along with the new rifle. NOTE: Loading ammo is not something that Pierce normally does, but this was a special client request.
One of our readers asked “What effect does altitude have on the flight of a bullet?” The simplistic answer is that, at higher altitudes, the air is thinner (lower density), so there is less drag on the bullet. This means that the amount of bullet drop is less at any given flight distance from the muzzle. Since the force of gravity is essentially constant on the earth’s surface (for practical purposes), the bullet’s downward acceleration doesn’t change, but a bullet launched at a higher altitude is able to fly slightly farther (in the thinner air) for every increment of downward movement. Effectively, the bullet behaves as if it has a higher ballistic coefficient.
The National Rifle Association’s President’s Match was instituted in 1878, as the American Military Rifle Championship Match. In 1884, the name was changed to the President’s Match for the Military Rifle Championship of the United States. It was fired at Creedmoor, New York until 1891. In 1895, it was reintroduced at Sea Girt, New Jersey. Today, the match is held at Camp Perry, Ohio.
World Benchrest Championships
About Lapua and Vihtavuori
Disclaimer: John shot some more groups with this Tubegun that were definitely NOT one-holers. That first five-shot masterpiece could not be duplicated. However, we’re told that the rifle shot other groups in the 2s, 3s, and 4s — impressive performance for a rifle designed for prone and position shooting. This shows how well the Pierce action mates to the Competition Machine chassis. 
