Harold Seagroves’ 3-time Hickory Ground Hog Match-Winning Rifle
At clubs across the country, varmint fun shoots (also known as “groundhog matches”) are becoming more popular every year. In these matches, usually shot from the bench, you engage paper targets, clay pigeons, steel “critter” silhouettes, or some combination of paper and reactive targets. Shooters like these matches because you can shoot a wide variety of rifles, you don’t have to spend a fortune to be competitive, and there is fun for the whole family. Rules are inclusive — you won’t be turned away because your rifle is two ounces overweight. A large percentage of the match fees usually go back to shooters in the form of cash prizes. And the level of camaraderie is high.
Inclusive Rules Welcome All Shooters
Forum member Danny Reever has explained the appeal of groundhog matches: “We don’t have a governing organization, or have to pay $50 a year membership just to compete in matches. Sure the rules vary from club to club, but you adapt. You build your rifle (or even pistol) to fall within the rules of either the clubs you shoot, or to fit all the clubs rules. If not there still is a class for you to compete in. If your factory rifle doesn’t conform to the rules, it can shoot in a custom class. If your custom doesn’t make weight for Light Custom (usually 17 pounds and under), you shoot it in heavy custom class. If you want to try your Tactical rifle or F-Class rig, bring it out there’s a class you can shoot it in. If you don’t like one club’s rules, you just don’t shoot there. It’s no big deal.
There are no National records, or Hall of Fame points — just individual range records. If you want to shoot in BIG matches (with big prizes), there is the Hickory Ground Hog Shoot among others. If competition isn’t your bag, many clubs offer mid-week fun matches that you can shoot just for fun. You shoot the same targets but with a more relaxed atmosphere with no time limits.
The best part is you don’t have to shoot perfect at every yardage. You always have a chance because in this sport it really isn’t over until the last shot is fired. Typically ALL the entry money goes to the host club, with much of the cash returned back to the shooters via prizes. Junior shooters often shoot for free, or at a reduced rate. That lessens the burden on the family’s wallet (not a small thing in these economic times). The low entry cost also encourages young guys to get involved who don’t have $4000 custom rifles or the money to buy them.
More Fun, Fewer Complications
There isn’t a sea of wind flags to shoot over or to put up and take down. If the range has a couple of flags so much the better, but after all it is a varmint match. No pits to spot shots and slow things down either. If you can’t see your hits through your rifle scope or spotting scope well you are in the same boat as everybody else. That’s what makes it interesting/ sometimes frustrating!
As for calibers, I’ve seen everything from .223 Rem to .338 Lapua and everything in between. Our range record at my club is held by Bill Slattery, who shot a 147 out of a possible 150 with a 22BR 13 months ago. That’s on a target with a 1.250 ten ring at 200/300/500 meters. That record will stand for awhile, and shows you that some very good shooting is done at groundhog matches.
The best part is it’s laid back, everyone gets along, there is no place for big egos here. We who shoot the Ground Hog Matches don’t begrudge the other organizations and shooting disciplines, or those that shoot in them, heck some of us cross over and compete in registered benchrest matches too. Life’s too short, live and let live is our motto so just come out and have fun!”
Fellow Forum members chimed in:
FdShuster: “I’ve competed in our local ground hog matches for several years now, have introduced a number of others to them, and we all enjoy them and more importantly, continue to learn from them. Distances are as close as 100 yards, (with a 5/8″ 10 ring) to as far as 500 meters. With a 2″ 10 ring. Wind, mirage, bullet trajectories, all make them a challenge, and unlike shooting for group, where the group can be anywhere on the paper, in this game they must be very small, but also in the 10 ring. With the different classes — Custom, Factory, Hunter — almost any rifle will fit in somewhere. And Danny is correct about the friendly attitudes. I’ve seen competitors go out of their way, and jeopardize their chances of winning, to help someone else who may have a problem on the line.”
Mike C: “Here in Texas, our version of groundhog matches involves shooting at clay pigeons at 400 yards. We use 60mm, 90mm, and 108mm clay pigeons attached to target boards. You have 10 shots to break 8 clays, with a seven-minute time limit. We have developed a good following at these matches. In past years, a Shooter of the Year Award was given based on the Aggregate score for three of our matches, which are held in Utopia, San Angelo, and Huntsville.”
40X Guy: “I would have to say upon finishing my first year ever of groundhog matches, that the average Joe can grab his Swift, or his 25-06, or his 22-250 and go rip some holes in paper. Everybody is having a good time and its a gathering of like-minded people who have all shot chucks at some point or another. Even if one does not win the match, you can look at your target and say “darn that chuck target has five holes in him at 400 yards and he’s dead” just as well as the next guy shooting a custom bench rifle. Everybody fits in and everybody, 8 to 80, is having fun! It is addictive and will drive you to spend your hard-earned currency for sure!”
Applied Ballistics team dominates the King of 2 Miles match: Mitchell Fitzpatrick (1st Place), Bryan Litz (2nd Place), and Paul Phillips (4th Place).
The King of 2 Miles event has come to an end, the scores have been tallied, and Team Applied Ballistics finished first, second, and fourth. That’s dominance. The “Top Gun” was young Mitchell Fitzpatrick, who blitzed the field with his impressive .375 Lethal Precision Arms LLC rifle shooting prototype solid 400gr Berger bullets. Mitchell built this rifle himself using a McMillan A5 Super Mag stock. Remarkably, Mitchell nailed first- and second-shot hits at the 2477-yard target, a full 1.4 miles away. That’s amazing shooting. The photo below illustrates the vast distance from firing line to target.
Mitchell gave credit to his team-mates: “We had the best ballistic solutions possible thanks to the work done at Applied Ballistics LLC by the one and only Bryan Litz. Bryan is also a world-class wind coach and world champion shooter. Paul Phillips, also a world-class wind coach, world champion shooter, and just an all-around class act. Paul was invaluable to making the wind calls we needed to win this match. One of the most important parts of any rifle system is the projectile… Berger’s new prototype .375-cal 400gr projectile we have been developing gave us a monumental ballistic advantage. [It was] without a doubt, a key to our success.”
Berger Ballistician Bryan Litz took second place shooting a .338 Edge (the only .338 rifle in the Finals). Durvin Wick finished third, while Paul Phillips, shooting Bryan’s rifle, placed fourth overall.
Report by Bryan Litz, Team Applied Ballistics
The 2016 King of 2 Miles event is in the books. Today the Top 10 teams engaged targets at 2011 yards, 2477 yards, and 3375 yards. All three Applied Ballistics teams had hits at 2011 yards, and two out of three of us scored first-round hits at 2477 yards! Note that no competitor (from any team) hit the two-mile (3375-yard) target, but that gives us a goal to shoot for next year. Many factors contributed to the success of the Applied Ballistics shooters in this event:
1. Teamwork. We shoot together on the U.S. Rifle Team. The standardized communication protocols between coaches and shooters was a big advantage in this timed event. We had excellent team-work, and are already discussing ways to improve and adapt our approach to ELR events.
2. Science. Applied Ballistics specializes in the science of accuracy. First round hits in this event are scored highly and you can get more first round hits if you know your ballistics. The top two shooters in this event both had first round hits at 2477 yards today which was key, and is not possible without highly accurate ballistic solutions.
3. Ballistic Performance. The performance of Mitchell Fitzpatrick’s .375 Lethal Precision Arms LLC rifle with the prototype 400 grain Berger Bullets solid is unmatched (G7 BC of 0.56 at over 3000 fps). This performance helped Mitch win the match by a sizable margin. The other two Applied Ballistics teams were shooting Bryan Litz’s .338 Edge with the Berger Bullets 300 grain Hybrid. Despite being a smaller caliber (compared to the .375s, .416s, and .50-calibers), the .338 Cal 300 grain Berger Hybrid proved to be a great performer.
There were quite a few big .50 Cals on the line, but a .375 topped the field. Sheri Judd photo.
Thanks to Eduardo Abril De Fontcuberta, Founder of the KO2M Event
We would like to thank all those who worked hard to make this event happen especially Eduardo Abril De Fontcuberta (shown below with Mitchell Fitzpatrick and Paul Phillips). Eduardo has worked hard to organize a great event that pushes the limits of ELR shooting in a fun and competitive way. We’re very grateful for the chance to participate and look forward to competing in the King of 2 Miles event next year. Also, thanks to Kelly McMillan for his support of our team. Kelly has been an awesome sponsor of our efforts here, as well as the U.S. Rifle Team, and the shooting community in general.
Well folks, it’s July 1st already — the means we’re moving into “peak heat” summer conditions. It’s vitally important to keep your ammo at “normal” temps during the hot summer months. Even if you use “temp-insensitive” powders, studies suggest that pressures can still rise dramatically when the entire cartridge gets hot, possibly because of primer heating. It’s smart to keep your loaded ammo in an insulated storage unit, possibly with a Blue Ice Cool Pak if you expect it to get quite hot. Don’t leave your ammo in the car or truck — temps can exceed 140° in a vehicle parked in the sun.
To learn more about how ambient temperature (and primer choice) affect pressures (and hence velocities) you should read the article Pressure Factors: How Temperature, Powder, and Primer Affect Pressure by Denton Bramwell. In that article, the author uses a pressure trace instrument to analyze how temperature affects ammo performance. Bramwell’s tests yielded some fascinating results.
For example, barrel temperature was a key factor: “Both barrel temperature and powder temperature are important variables, and they are not the same variable. If you fail to take barrel temperature into account while doing pressure testing, your test results will be very significantly affected. The effect of barrel temperature is around 204 PSI per F° for the Varget load. If you’re not controlling barrel temperature, you about as well might not bother controlling powder temperature, either. In the cases investigated, barrel temperature is a much stronger variable than powder temperature.”
Powder Heat Sensitivity Comparison Test
Our friend Cal Zant of the Precision Rifle Blog recently published a fascinating comparison test of four powders: Hodgdon H4350, Hodgdon Varget, IMR 4451, and IMR 4166. The first two are Hodgdon Extreme powders, while the latter two are part of IMR’s new Enduron line of propellants.
The testers measured the velocity of the powders over a wide temperature range, from 25° F to 140° F. Hodgdon H4350 proved to be the most temp stable of the four powders tested.
The largest field target event in the country comes to upstate New York next weekend. On July 8-10, the Crosman All-American Field Target Championship (CAAFTC) will be held at the Rochester Brooks International Skeet and Trap Club in Rush, New York. 0ver 100 air rifle and air pistol competitors will participate in the event hosted by Crosman Corporation. This event attracts top Airgunners from across the nation (and some foreign countries). Along with regular Field Target matches, there will be specialty side matches, plus a factory tour. The event is free to the public.
The CAAFTC is sanctioned by the American Airgun Field Target Association and is a featured AAFTA Grand Prix event. The 120-shot match has competitive rifle divisions based on allowable gun and support equipment. Here are the main air rifle classifications:
Hunter Division – rifle fires at a maximum 20 foot pounds of energy (FPE), shooter may use a non-attached bipod, non-restrictive clothing, and sitting stool. Open Division - maximum 20 FPE maximum rifle, shooter may wear a body harness, no bipod, 6″ maximum height seat. World Field Target Federation (WFTF) – similar to Open but shooters compete according to international standard of maximum 12 fpe for rifles. Freestyle Division – 20 FPE maximum rifle, no other restrictions. (This is new for 2016).
The pistol competition includes similar divisions based on shooting styles. Both rifle and pistol divisions include sub-classes based on the air rifle powerplant: piston driven or precharged pneumatic.
“If you want to see some of the country’s finest airgun shooters, this is the hottest event of the summer and it’s free for the public,” says Chip Hunnicutt, Marketing Manager for Crosman. “Alongside the world-class shooters, we’ll have enthusiasts simply having a good time and even parents bringing their kids for some good fun outdoors.”
The weekend begins on Friday, July 8th with the PyramydAir Gunslynger match at noon followed by the Quigley Bucket Challenge at 2:00 pm. A facility tour will be available at 1:00 pm at Crosman’s world headquarters located at 7629 Routes 5 & 20 in Bloomfield. The first round of the rifle match begins Saturday at 9:00 am.
Tech Talk: Why the Big Side-Wheels on the Scopes?
Field Target rifles shoot pellets propelled by compressed air. These light-weight, low-BC projectiles drop very quickly, with a looping trajectory. In order to hit targets at distances out to 50 yards or so, you have to adjust your scope to compensate for pellet drop. But you can’t set the scope correctly without knowing the precise range to the target. This is the function of the big wheels on the side of the scope. Field Target Competitors use the parallax adjustment on high-magnification scopes to determine target range. The big wheel allows quick, yet precise parallax adjustment. Markings on the wheel show the shooter the scope settings required for the distance “dialed-in” via the over-size parallax wheel.
Location: Overlooking Columbia River in Colville, Washington area, (North of Spokane, WA)
The annual precision tactical rifle event known as the Sniper’s Hide Cup (SHC) wrapped up on Sunday and it was quite an adventure this year. The match, held in a stunningly beautiful corner of Washington State, offered plenty of challenge for the competitors, along with memorable scenery. On the podium this year were: Nick Gadarzi (1st), 2nd Jesse Redell (2nd), and 3rd Brent Webley (3rd). Congrats guys!
These photos come from Frank Galli, Sniper’s Hide Founder, and our friend Steve Lawrence from 6.5Guys.com. Steve competed in Squad 8 with other members of the Northwest precision shooting community. Three members of the squad placed in the top 20. Steve placed 34th out of 148 shooters registered for the event.
Credit goes to Frank Galli of Sniper’s Hide, LLC, Mile High Shooting Accessories, and Carl Taylor of In Motion Targets for organizing, sponsoring, and hosting this event, as well as the dozens of Range Officers, volunteers, and companies who donated to the prize table which made this such a memorable match. The ‘Hide Cup will be featured on the Long Range Reality TV series.
Match Director’s Report — Sniper’s Hide Cup 2016
The 2016 Sniper’s Hide Cup was held in Colville, Washington in one of the most picturesque settings I have ever attended. We had 24 stages, 50 Range Officers, and 148 competitors at this year’s 2.5-day event. Starting off with heavy rain and fog, we quickly rolled in cool temps and partly sunny skies. It made for a great weekend of shooting.
Because Carl Taylor owns and operates In Motion Targets, we had 5 mover (moving target) stages. So every segment included a moving target stage, which was anywhere from 400 to 800 yards. This was a more traditional Field Course-type event, but the SHC was part of the PRS Series. Targets averaged from 300 to 1100 yards during the match, under challenging and unpredictable conditions thanks to the varied terrain. Competitors shot 360 degrees so they were subject to wind from every direction.
Congratulations to the Top 3, Nick Gadarzi, Jesse Redell, and Brent Webley. We thank key Sponsors Sig Optics, Swarovski, and Proof Research, along with Falkor, Prime Ammo, GA Precision, and Kasey Beltz with B&T Industries. They were Segment Sponsors.
We look forward to doing more in the Colville area next year. It was a laid back fun event.
— Frank Galli, Sniper’s Hide Cup Match Director
Steve Lawrence takes aim on a down-angle shot amidst the pines.
Steve (shown above) gave a shout-out to his sponsors: “We want to acknowledge the 6.5 Guys partners/sponsors who make it possible for us to bring viewers along with us on our precision rifle marksmanship quest. Travis Redell of R Bros Rifles who built me a superbly accurate, ultra-dependable match rifle, Jake Vibbert of JC Steel Targets, Glen Harrison and Mike Lee of Defiance Machine, Michael Ryan of Midsouth Shooters Supply, and Kevin Thomas and Adam Braverman of Lapua.
The King of 2 Miles Extreme Long Range (ELR) competition is underway at the NRA Whittington Center in Raton, New Mexico. Many of the nation’s top shooters are competing — aiming for hits on targets as far out as 3500 yards.
Day One went well. I was the third shooter this morning. Started out good with 4/5 hits at 1454 yards including a first-round hit which is worth a lot of points. The second target was only 100 yards further, but the wind cycled and I missed the first two shots. If you miss three shots on any target after the first, you’re out! So cautiously, and with help from my teammates/spotters Paul Phillips and Mitchell Fitzpatrick, I scored a third round hit at 1550 and was able to advance to the 1720-yard target. I manage to hit that 1720-yard target three out of three times.
The final target on Day One was at 2011 yards. Unfortunately I had three close misses. (Editor: Close only counts in horseshoes and hand grenades, Bryan…)
Twenty teams shot today and about 15 more will shoot the qualifying stage tomorrow then the top 10 from the two days will shoot on Thursday at over 3300 yards for the crown. My score of about 29,000 points is good. But I won’t know for certain if I’ve made the Top 10 until all tomorrow’s teams fire.
Mitchell Fitzpatrick hit every target on his first two shots and finished with 40,000 points on Day One. His farthest shots were just over 2000 yards.
So that’s my story so far, but that’s not THE story. Teammate Mitchell Fitzpatrick (with rifle above) topped the field today with a monster score, hitting all targets and racking up over 40,000 points! The prototype Berger .375-caliber, 400gr bullets and Mitch’s .375 Wildcat from Lethal Precision Arms LLC are a super high-performance combination that made short work of the ELR course.
Also, teammate Paul Phillips, who originally was only here to spot, has entered the competition. He’ll be shooting my .338 Edge tomorrow. Luckily I brought plenty of ammo!
Picture below is the full Applied Ballistics team with sponsor Kelly McMillan. Kelly has been great to our team and we’re looking forward to some future projects with him in ELR.
In all the King of 2 Miles event is very enjoyable. It’s a great place to come and learn from fellow ELR shooters what works and what doesn’t work at these ranges. The spirit of the match is education and growing the knowledge base and I think it’s doing a great job at that. We’re thrilled to be a part of it!
DAY 2 UPDATE: Top TEN Shooters
Results of King of 2 Miles After Day Two
The Top 10 listed below continue to Day Three. On this final day, the ten remaining competitors will engage targets from 1-2 miles. Paul Phillips reports: “I managed to finish today with the highest score of the day. That placed me 7th overall and allows me into the shoot-off tomorrow. Team Applied Ballistics place three shooters in the 10 Final: Michael Fitzpatrick, Bryan Litz, Paul Phillips.”
Virginia “Ginny” Thrasher, who will compete in the Rio Olympics this summer, showed continued dominance of her sport by winning the women’s national Air Rifle title last week at Fort Benning, Georgia, home of the USAMU. Mindy has been on fire in recent months. In April she won the 2016 U.S. Olympic Team Trials in Smallbore Rifle, securing a spot at the Rio Olympics. Prior to that, Ginny won individual NCAA titles in both air rifle and smallbore — as a freshman! This girl is a genuine phenom…
Thrasher, a member of the West Virginia University Mountaineers, has been on a tear of late. After winning the the Olympic Trials in Three-Position Rifle in April, she then earned two finals appearances at the Munich World Cup in May. Prior to that, Ginny’s sharpshooting earned her individual NCAA titles in air rifle and smallbore. With those performances, the talented freshman led West Virginia University to the collegiate team title and was named Top Performer of the 2016 NCAA Shooting Championship.
Her WVU coach, Jon Hammond, said Ginny has had an amazing run to Rio: “It’s an unbelievable freshman year to win NCAA championships and qualify for the Olympics. I would hazard she’s probably going to be one of the youngest members of the U.S. shooting team at the Olympics.”
Thrasher earned her way onto the national team with a stellar performance at the 2015 U.S. championships, where she won five medals, three in junior competition and two in open competition. That performance propelled her into her freshman season at West Virginia University.
This year’s USA Shooting National Championships includes more than 300 athletes vying for National Team selections and the upcoming Olympic and Paralympic Games in Rio De Janeiro, Brazil. Other shooters attending this year’s Nationals are looking ahead to the next Olympic Games — Tokyo 2020.
Mindy Miles (Weatherford, Texas) finished second at Nationals behind Thrasher in the women’s Air Rifle Event. Thrasher’s Team USA teammate at the Rio Olympics, Sarah Scherer (Woburn, Massachusetts), won the Final to finish third overall.
How well can the 6mm Dasher perform at 1000 yards when conditions are good, and the shooter is riding a hot streak? Well here’s a shot-by-shot record of Scott Nix’s 4.554″ 10-shot group shot at Missoula, Montana at the Northwest 1000-yard Championship a few years back. All 10 shots were centered for a 100-6X score. That’s about as good as it gets. If Scott had stopped after 5 shots, his group would have been under 3 inches!
Video Demonstrates Amazing 1000-Yard Accuracy
Watch the video. You can see the group form up, shot by shot. It’s pretty amazing. Scott’s first shot (at the 45-second mark of the video) was right in the X-Ring, and four of Scott’s first five shots were Xs. That’s drilling them! This video was recorded from the pits at the 1000-yard line, during record fire.
Berger Ballistician Bryan Litz has been preparing for the King of Two Miles match next week. He’s been out testing a VERY high-BC bullet — Berger’s new prototype .375 caliber 400-grainer. In the photo above, you can see Applied Ballistics intern Mitch Fitzpatrick (flanked by twin LabRadar chronos) shooting at a target set at 2400 yards. Next week, at the King of Two Miles event, the challenge will be even greater — Bryan and his team will be shooting out to roughly 3600 yards.
Bryan reports: “We’ve been preparing for the King of Two Miles match next week. Last Friday we shot 2400 yards at Thunder Valley Precision in Ohio, measuring time of flight and refining the custom drag model for our bullet. We are logging flight times over three seconds and the bullet is still supersonic at 2400 yards! Tomorrow we’re shooting 1800 yards as a final verification before we load up and begin traveling out west.”
OPTICS for Extreme Long Range Bryan is running Nightforce ATACR scopes on his .375 rifles. These ATACRs offer 120 MOA (or 35 Mils) of elevation. That’s impressive, but you still need more “up” for these extreme distances.
Bryan notes: “No scope has enough elevation to dial direct to two miles even with these large-caliber, high-performance rifles. You need some kind of external adjustment, or use a steep rail (e.g. +80 MOA). This works but can sacrifice your ability to zero under 1000 yards.”
This video shows a hit at 2400 yards with the .375-caliber bullet. The target is 8’x8′ square. The targets Bryan will shoot at next week’s King of Two Miles competition will be up to 1200 yards further than this. (Two miles is 3520 yards).
If you’re interested in this kind of Extreme Long Range shooting, consider attending the Applied Ballistics Seminar. The next seminar will be held July 18-19 in Michigan. Bryan says: “We’ll be sharing our experiences and lessons learned in the Two Mile shooting match among many other things we’re working on.” CLICK HERE for Seminar INFO and Registration.
For the International Benchrest Shooters (IBS) by Frank Danisienka
The IBS Executive Board has voted to create two new awards. These awards recognize the significant performance of a select number of shooters. Patches for Score shooting a perfect score of 750, and a perfect target of 250-25X, were designed by the board. To score 250, you need to shoot five (5) tens on each of the five record targets at a particular yardage. To score 750 you need to do that at all THREE yardages — 100, 200, and 300 yards. Certificates accompanying the patches document the commitment to excellence and dedication by these shooters to our sport.
Perfect 750 Multi-Yardage Score — A Rare Occurrence
In the long history of IBS competition only 16 members have shot a perfect score of 750 in one match! That’s 250 at 100 yards, 200 yards, and 300 yards. This very select group of shooters includes: Al Weaver, Rod Morton, Dave Short, Dennis Collins, Ken Livengood, Wayne Shaw, Dick Spencer, Hal Drake, Kim Llewellyn, Shaun Shank, Roy Hunter (2), Dean Breeden, John Bosley, Wayne France, Ricky Read and John Cascarino.
Dean Breeden is one of only 16 Shooters to have recorded a 750 total score in a match.
All Xs — the Perfect Target, 250-25X
The remarkable feat of shooting a perfect 250-25X target has been accomplished 37 times by 26 members. They are: Dennis Collins (2), Ted Parreco, Jeff Buchannan, Carl Baker, James Goody, Joe Enterkin, Rich Whiteash, Dean Breeden (2), David Apple, Al Weaver, Rod Morton, Mike Bigelow, Ken Livengood (3), Roger Avery (2), Joe Pellegrene, Mark Ludinsky (3). Herb Llewellyn (2), Jackie Stogsdill, Hal Drake (2), Johnny Lorick, Ron Collins, Wayne France (2), Shaun Shank, Steve Jaynes, Kevin Donalds Jr., Randy Jarvais (2).
Our sport continues to evolve toward perfection both in the quality of the equipment and the skill of our members and these awards recognize them for their accomplishments.
Inclusive Rules Welcome All Shooters
More Fun, Fewer Complications
Mike C: “Here in Texas, our version of groundhog matches involves shooting at clay pigeons at 400 yards. We use 60mm, 90mm, and 108mm clay pigeons attached to target boards. You have 10 shots to break 8 clays, with a seven-minute time limit. We have developed a good following at these matches. In past years, a Shooter of the Year Award was given based on the Aggregate score for three of our matches, which are held in Utopia, San Angelo, and Huntsville.”
To learn more about how ambient temperature (and primer choice) affect pressures (and hence velocities) you should read the article 
Bryan Litz of 
How well can the 6mm Dasher perform at 1000 yards when conditions are good, and the shooter is riding a hot streak? Well here’s a shot-by-shot record of Scott Nix’s 4.554″ 10-shot group shot at Missoula, Montana at the Northwest 1000-yard Championship a few years back. All 10 shots were centered for a 100-6X score. That’s about as good as it gets. If Scott had stopped after 5 shots, his group would have been under 3 inches!
Berger Ballistician Bryan Litz has been preparing for the 
Bryan is running 
