The International Benchrest Shooters (IBS) is pleased to announce the hiring of Boyd Allen as its new Executive Vice President/IBS Editor. Boyd will be responsible for guiding the IBS’s marketing and Public Relations efforts. He will handle all articles on IBS’s web partner, Accurateshooter.com, the leading rifle accuracy site on the Internet. He will also coordinate and contribute to preparation of match reports on Accurateshooter.com for IBS National Championships and other featured matches. Boyd will also work with the IBS Executive Board and discipline committees on rulebook and other administrative activities. Boyd Allen can be reached at: boydallen [at] live.com.
A long-time competitive shooter, Boyd has competed in registered benchrest matches near his home in Fresno, CA. He has written for both Precision Shooting magazine and Shooter’s News. Most recently, Boyd has been a regular contributor to Accurateshooter.com and an active Forum member. Boyd will help the IBS reach a broader audience through AccurateShooter.com and social media. He expects to enhance match reports and also do regular articles on benchrest equipment and trends. He will spearhead a proposed 300-yard exhibition match in 2018 that can bring together shooters from multiple precision rifle disciplines. (Editor: We like this idea — this 300-yard showdown could be the ultimate “bragging rights” match with “point-blank” PPC shooters dueling with Dasher pilots and F-Class aces.)
The IBS is a leading organization for group and score benchrest competition, including the 100/200/300 benchrest games, along with 600-yard and 1000-yard benchrest disciplines.
News Tip from Edlongrange. We welcome reader submissions.
2017 IBS 1000-Yard Benchrest Nationals Report By Boyd Allen
On September 1-4, the IBS held its 2017 1000-yard Benchrest Nationals at the Whitehorse Shooting Center in Peeltree, West Virginia. There was a great turn-out this year, with 118 entries in Light Gun Class (17-lb limit, 5 shots per target) class and 107 shooters in Heavy Gun Class (Unlimited weight, 10 shots per target). The conditions this year were challenging to say the least, with rain storms, spiraling winds, and fog. In fact, rain and fog on Saturday (with cancelled relays) caused the Nationals to be extended by one day through Monday, September 4th. What’s more, of the 107 shooters listed in the Two-Gun Overall results who actually shot both guns, there were dozens of DQs. (Yes, the wind was a bit tricky at this year’s Nationals.)
Sam Hall, past IBS Shooter of the Year, provided this image and most of the photos in this report.
Congratulations to the “top guns” at the Nationals: Edward Kenzakoski (Two-Gun Overall Champion), Mike Gaizauskas (Light Gun Overall, plus LG Score Agg), and Mike Brennan (Heavy Gun Overall, plus HG Score Agg). Group Agg winners were Richard Schatz for LG, and Charlie Lentz for Heavy. Two ladies also deserve mention. Sally Bauer shot the smallest group of the match, a 1.923″ 5-shot group in LG — that’s 0.184 MOA! Ruth Edwards drilled a 2.104″, also mighty impressive. Nice shootin’ ladies…
White Horse Wind and Weather Factors — and Topography
The firing line for the 1000-yard range has a covered structure with 14 well-spaced masonry benches with block bases and cast concrete tops. Facing southwest, the firing line is above the land between it and the target butts, which are at the head of a canyon. There is a low area with trees on the left with an elevated flat area on the right.
This topography create unpredictable wind patterns that can change rapidly with no warning. Those changes can wreak havoc with competitors’ groups and scores. The wind direction at the targets can be opposite that at the firing line, with the result that a let-off down range not only carries the penalty of making a hold-off incorrect, but because the wind at the firing line can continue, adding the additional penalty of a reversal. This was the common cause of disqualifications, which were numerous at this year’s Nationals.
Light Gun and Heavy Gun Equipment Lists (Partial Sample):
Barrel-Block Heavy Gun with a handsome wood stock. Wide fore-ends enhance stability.
Delay Caused by Fog and Rain
On Saturday, rain and fog delays, caused the match to be extended through Monday. The rules dictate that if a full match cannot be finished because of weather, then all of the day’s results are discarded. This meant that even those shooters who completed their relays on Saturday had to shoot them over — hence another day was added to the event. Because of the prospect of worsening conditions on Saturday afternoon, even though there was daylight left, the decision was made to extend the match through Monday.
Profile of 2017 IBS 1000-Yard National Champion Edward Kenzakoski
Commenting on his performance at the Nationals, Ed said modestly:
“I didn’t shoot really good. I just shot better than them other guys.”
Winning Hardware (with a 110-lb Heavy Gun)
Notably, Ed does all of his own gunsmithing, and he built his Championship-winning rifles. Both guns featured 1:11″-twist, 30″ Krieger barrels. (LG: 1.250″ shank and .950 muzzle; HG: 2″ contour untapered). Ed’s Light Gun has a BAT action, no barrel block, Jewell trigger, and McMillan Tooley MBR stock. His Heavy Gun boasts a 10″-long BAT action in a two-piece aluminum stock with barrel block. That HG beast weighs 110 pounds! Both of Ed’s rifles (light and heavy) wore Nightforce 12-42x56mm BR scopes.
Winning Numbers
To win the Two Gun Overall, Ed posted 137 LG Score, 262 HG Score, and 399 Two-Gun Score Agg. His Group numbers were: LG Group 5.659, HG Group 7.483, Two-Gun Agg: 6.571.
Winning Loads and Reloading Methods
Both rifles are chambered in 300 WSM. Ed shoots 210gr Berger VLDs (sorted every way possible), with Norma brass, Hodgdon H4350 powder, and CCI BR2 primers. For the two guns he used very different seating depths — barely touching for the HG, 0.100″ jump for the LG. He said that it takes him a full four days to load the ammunition for both rifles for a match. Yes, he weighs primers, and he even passes his bullets through a .309 bushing.
No Dark Horse at White Horse — Kenzakoski is a Proven Winner
One shouldn’t be surprised at Edward Kenzakoski’s success. Ed really cleaned up at Williamsport this year, winning one 6-match Aggregate and two 10-match score and group Aggregates. He also established a new Williamsport club Light Gun record of 3.2″.
Last year’s winner Tom Mousel sitting at the bench on Sunday. Tom finished third overall this year.
Record-Setting Asymmetry
In 2016 Michael Gaizauskas set the current 1000-yard IBS Heavy Gun (10 shot) group and score records. He set those records with the rifle on the left (below), then chambered in 6.5×47 Lapua. In this match, Mike won LG Group and LG Overall with the rifle on the right as chambered in his own 7mm short magnum wildcat. Mike designed and built both these distinctive assymetric stocks.
Prizes and Gift Certificates Galore at White Horse
The prize table at the IBS 1000-yard Nationals was impressive, with many scopes and stocks as prizes, plus a treasure trove of gift certificates:
White Horse Shooting Center Facilities, Organization, and Location
The 1000-yard range used at the IBS 2017 Nationals is part of a large shooting facility run by Whitehorse Firearms Outdoor Education Center in cooperation with the West Virginia Division of Natural Resources. White Horse is located off of Route 20 near the small community of Peeltree, WV. The nearest town of any size, ten miles to the south, is Buckhannon, WV, which has about 5600 residents.
White Horse Geography and Climate
The White Horse range is set in wooded hill country, with lots of creeks and some smaller rivers all kept green and running by an annual rainfall of about 48 inches and about the same for snowfall. To my eyes it is beautiful county, pleasingly rural and lush, in marked contrast to where I live where every plant must be served by some sort of irrigation.
The Visalia Sportsman’s Association Dale Wimp Shooting Range — a great place to shoot.
Report by Boyd Allen | Photos and video by Pete Kitrinos
The IBS is in the West! The first International Benchrest Shooters (IBS) match at the Visalia, CA range was held over the recent Labor Day Weekend. Despite scorching 106° heat, many of the West’s top short-range benchrest shooters assembled for the first IBS-sanctioned match (after a 30-year history with the NBRSA) at the Visalia range. The mix of shooters included at least one Benchrest Hall of Fame member, as well as NBRSA record holders. Competitors were happy to return to Visalia, which had been closed for seven months while range improvements were made (some parts of the East berm were still under construction). With only two ranges in the entire state holding short range group matches, the temporary loss of Visalia had a significant impact. It was time to get back to business — the business of shooting tiny groups.
This video includes Aerial Drone footage of the range — worth watching!
Surrounded by fields, the Visalia Range is located in California’s Central Valley, a rich agricultural area.
For about thirty years the California 3-Gun Benchrest Championship match has been held at the Visalia Sportsman’s Association Dale Wimp Range over Labor Day weekend. For all those years, the matches have been put on by local shooter and current club president Dennis Thornbury. During a good part of that time, he has also managed to keep his name in the NBRSA record book, and pick up four Benchrest Hall of Fame points, as well as having recently done a tour as NBRSA president. This year’s match is sanctioned by the IBS, a first at Visalia.
Don “The Pumpkin” Nielson used an action he fabricated, a “fat bolt” aluminum 3-lug with steel insert.
Dennis Thornbury has been putting on registered matches at the Visalia range for 30 years. He holds an NBRSA record, and has 4 Hall of Fame points.
The format: On Saturday competitors shot 100 yards all day, Sporter in the morning, Light Varmint in the afternoon. The following day the morning competition was Heavy Varmint at 100 and at lunch the targets were moved to 200 yards with Heavy Varmint being shot that afternoon. On Monday, Labor Day, at 200 yards, Light Varmint was shot in the morning and Sporter in the afternoon. All three days consisted of five, 5-shot matches in the morning and five more in the afternoon.
Morning, Day 1 — Very few “daisy wheels”. This has been the trend for many years at this range.
Getting down to business. Shown, from right to left: Henry Pinkney, Joe Stanovich, Steve Epstein, Keith Cottrell (face obscured), Jim Nicolas (standing).
Sunday Top Shots: Jack Childers, Keith Cottrell, John Pierce, Lester Bruno, Dennis Thornbury, and Don Nielson. (Yes that’s a corn field in the background):
With the big temp changes between morning and afternoon, competitors were chasing powder loads all weekend. Small groups were hard to find, so only three “screamers” were recorded all weekend, and no teen Aggs. With the oppressive heat, attrition was also a factor: “We started with 30 shooters, and ended with just 21 competitors”.
Temperatures were in the triple digits for Saturday and Sunday, backing off to the high 90s on Monday. High humidity made it feel even hotter — heat stress was a definite issue. Even the rifles seemed to be at less than their best, causing very light wind conditions to produce Aggregates that were larger than the observed wind conditions would lead one to expect. Wind was generally light and switchy. Lighter mornings with wind increasing slightly through the days. Sunday saw more wind than the other two days after ten o’clock or so.
Loading benches with the usual clutter. Note the LabRadar chronograph on a bench at the firing line. Lawrence Weisdorn tracked his velocities during the match to know when a powder charge adjustment was needed.
Top Shooters: The Top Five in the 3-Gun (HV, LV, and Sporter) Championship were: Keith Cottrell (.2534), John Pierce (.2695), Dennis Thornbury (.2714), Art Kawai (.2885), and Rich Shaw (.3016). Winners of the Class Grand Aggs were Dennis Thornbury (HV .2424), Lester Bruno (LV .2400), and Keith Cottrell (Sporter .2395). CLICK HERE for full Match Results.
Equipment List for Top Five Shooters
You can use a LabRadar during competition. This was Lawrence Weisdorn’s set-up at Visalia.
Benchrest Technique — How to Shoot at Visalia
This range is built a bit like a large bathtub, dug into a flat field with the excavated earth thrown up in steep berms on three sides. This configuration and the usual lack of strong winds creates a lot of thermal-generated switchiness with flags changing direction often and very little agreement within any shooter’s set. This places a high premium on visual memory and the ability to judge equivalent conditions, because duplicates are almost never seen. Although the opportunity to run groups can happen, this is mostly a “pickers” range, which places a high premium on visual memory.
Facilities at Visalia Sportsman’s Association Range
There are 28 monolithic, steel-reinforced, concrete benches (poured in place, base and top all one pour). The reloading area is behind the benches with most of it on the same level as the benches. There are permanent (fixed position) tables that have laminate tops, except for where the range house sits, mid-range, with a “wailing wall” along its east and north sides. The direction of fire is north. The benches are under a slightly pitched metal roof that has recently been extended so that it has a good amount of overhang in front of the benches. Electricity is available in the reloading area and there are a few electrical outlets in the parking lot for RVs. There are both steps and a wheelchair ramp connecting parking lot to the reloading level and the shooting level.
Field of (Benchrest) Dreams — Precision Shooting Among the California Corn Fields.
Most of us assume that if we weigh our powder carefully (down to the tenth of a grain or less) we can achieve a uniform powder fill from case to case in our handloads. Weighing does ensure that the weight of the propellant in each case is the same, but is the column of powder the same by volume each time? “Not necessarily” is the answer. An interesting experiment by our friend Boyd Allen demonstrates that the manner in which you place kernels in the case can make a significant difference in the height of the powder column within the brass case.
Using a Gempro 250 scale, Boyd measured exactly 30.6 grains of Vihtavuori N-133 powder. He then inserted this powder in the same cartridge case multiple times. (The case has a fired primer in place.) But here is the key — Boyd used various filling techniques. He did a slow fill, and a fast fill, and he also experimented with tapping and drop tubes. What Boyd discovered was that you can start with the exact same weight of powder (in fact the very same set of kernels), yet end up with vary different fill heights, depending on how you drop the kernels into the case. Look at the photos. Despite variations in lighting, the photos show the same 30.6 grains of powder, placed in the same cartridge, with four different methods.
Using funnels with long drop tubes packs kernels more tightly, creating a shorter powder column. That allows you to get more propellant (by weight) into the case.
Boyd Explains the Procedure Used for his Experiment.
EDITOR’s NOTE: So there is no misunderstanding, Boyd started with a weighed 30.6 grain charge. This identical charge was used for ALL four fills. After a fill the powder was dumped from the case into a pan which was then used for the next fill technique to be tried. So, the powder weight was constant. Indeed the exact same kernels (of constant weight and number) were used for each fill.
Boyd writes: “I used the same powder for all fills, 30.6 gr. on a GemPro 250 checked more than once. All fills employed the same RCBS green transparent plastic funnel. The fast drop with the funnel only overflowed when it was removed from the case neck, and 15 granules of powder fell on the white paper that the case was sitting on. The fast-funnel-only drop with tapping, was done with the funnel in place and the case and funnel in one hand, while tapping the case body with the index finger hard, many times (about 20 fast double taps). My idea here was to “max out” the potential of this tapping technique.
The slow drop with the funnel and 10″-long .22 cal. Harrell’s Precision drop tube, was done by holding the scale pan over the funnel and tapping the spout of the pan repeatedly on the inside of the funnel about 1/3 down from the top, with the scale pan tilted just enough so that the powder will just flow. Many taps were involved, again, to max out the technique.
Again, to be clear, after each case filling, the powder was poured from the case back into the scale pan carefully. You may notice the similarity between the fast drop with the drop tube, and the funnel only with tapping. Although I did not photograph it, fast tube drop and tapping (combined) improved on tapping alone, but only to about half as far down the neck as the slow with drop tube. Due to the endless possible permutations, I picked four and left it at that.
I believe that I can make the rough judgment that the scale pan funnel and drop tube technique, which involved a longer drop period, and probably less velocity at the top of the tube, left more room in the top of the case neck than the slow drop from the measure with the same drop tube. You have both pictures, so you can make the comparison.” — Boyd
Does Powder Column Height Variance Make a Difference?
Boyd’s experiment proves pretty conclusively that the method of dropping a given weight of powder can affect the height of the powder column in the case and the degree of powder compression (when a bullet is seated). He showed this to be true even when the exact same set of kernels (of constant weight) was used in repetitive loadings. This raises some interesting questions:
1. Will subsequent cartridge transport and handling cause the powder to settle so the variances in powder column height are diminished?
2. If significant inconsistencies in powder column height remain at time of firing, will the difference in fill level hurt accuracy, or result in a higher extreme spread in velocity?
3. Is there any advantage (beyond increased effective case capacity) for a tight (low level) fill vs. a loose (high level) fill?
We don’t know the answer to these follow up questions. This Editor guesses that, if we tested low-fill-height rounds vs. high-fill-height rounds (all with same true fill quantity by weight), we might see meaningful differences in average velocity. I would also guess that if you fired 10 rounds that exhibited quite a difference in powder column heights, you might see a higher ES/SD than if you shot 10 rounds loaded with a very consistent powder column height (either high or low). But further testing is needed to determine if these predictions are true.
There was an excellent article about Mirage created for the South Texas Marksmanship Training Center (STMTC) website a while back. This article explains what causes mirage and how mirage can move the perceived aiming point on your target. Most importantly, the article explains, in considerable detail, how you can “read” mirage to discern wind speeds and wind directions.
Mirage Is Your Friend
While hot days with lots of mirage can be frustrating, mirage can reveal how the wind is flowing (and changing). If you learn how to recognize and read mirage patterns, you can use that information to shoot higher scores. That’s why many leading long-range shooters tell us: “Mirage is your friend.” As the STMTC article explains: “A mirage condition is not a handicap, since it offers a very accurate method of perceiving small wind changes[.]”
Mirage Illustrated with Diagrams
With simple but effective graphic illustrations, this is one of the best explanations of mirage (and mirage reading) we have found on the internet. This is a “must-read” for any serious competitive shooter. Here is a brief sample from the article, along with an illustration. NOTE: the full article is six times longer and has 8 diagrams.
The term “mirage” as used by the shooter does not refer to a true mirage, but to heat waves and the refraction of light as it is bent passing through air layers of different density. Light which passes obliquely from one wind medium to another it undergoes an abrupt change in direction, whenever its velocity in the second medium is different from the velocity in the first wind medium; the shooter will see a “mirage”.
The density of air, and therefore its refraction, varies with its temperature. A condition of cool air overlaying warm air next to the ground is the cause of heat waves or “mirage”. The warm air, having a lower index of refraction, is mixed with the cooler air above by convection, irregularly bending the light transmitting the target image to the shooter’s eye. Figure 1 shows (greatly exaggerated) the vertical displacement of the target image by heat waves.
Heat waves are easily seen with the unaided eye on a hot, bright day and can be seen with spotting scope on all but the coldest days. To observe heat waves, the scope should be focused on a point about midway to the target. This will cause the target to appear slightly out of focus, but since the high power rifle shooter generally does not try to spot bullet holes, the lack in target clarity is more than compensated by clarity of the heat waves.
Story tip from Boyd Allen. We welcome reader submissions.
TEN Shots in 0.303″ (0.289 MOA) at 100 Yards
How does Dan’s XP-100 pistol shoot? Look at that target showing TEN shots at 100 yards, with eight (8) shots in the main cluster at the top. The ten-shot group measures .303″ (0.289 MOA), as calculated with OnTarget Software. Not bad for a handgun! What do you think, can your best-shooting rifle match the 10-shot accuracy of this XP-100 pistol?
Report by Boyd Allen
This pistol belongs to Dan Lutke, a Bay Area benchrest shooter who publishes the results for the Visalia matches to the competitors and the NBRSA. He has been an enthusiastic competitor for an number of years, at various ranges, notably Visalia and Sacramento. The action is a Remington XP-100, to which a Kelbly 2 oz. trigger has been fitted. On top is an old Japanese-made Tasco 36X scope (these were actually pretty darn good). The Hart barrel (a cast-off from Dan’s Unlimited rail gun) was shortened and re-chambered for the 6x45mm, a wildcat made by necking-up the .223 Remington parent case. The custom stock/chassis was CNC-machined by Joe Updike from 6061 Billet Aluminum to fit the XP-100 action and mount a target-style AR grip with bottom hand rest. The gun was bedded and assembled by Mel Iwatsubu. In his XP-100 pistol, Dan shoots 65gr custom boat-tails with Benchmark powder.
This diagram shows the most common 6x45mm wildcat, which is a necked-up version of the .223 Remington parent cartridge. NOTE: The dimensions for Dan Lutke’s benchrest version of this cartridge may be slightly different.
ACAD drawing by Peter Gnanapragasam CC by SA 3.0, via Wikimedia Commons. Title Added.
Story tip from Boyd Allen. We welcome reader submissions.
You are looking at one of the most impressive examples of precision shooting in history. On each of those five targets is a five-shot group made at 100 yards. This is the best set of five targets ever shot consecutively at 100 yards in the history of firearms competition on this planet. That’s right, nobody has ever drilled a better set of five, five-shot targets. The combined Aggregate for these five targets is a stunning 0.1014″, with the individual groups measuring: 0.102″, 0.168″, 0.123″, 0.053″, and 0.061″. So, two of the five groups were in the Zeros. And the 0.1014″ Agg handily beats existing world records.
This is an amazing accomplishment that beats both the existing NBRSA and IBS records. The NBRSA Record 100-yard Unlimited 5×5 Aggregate is 0.1242 set by Jerry Lahr in 2012. The IBS Record Heavy Benchrest 100-yard Aggregate (for five, 5-shot groups) is 0.134″, set by R. Howell in 2004.
But there’s more…
Lozano Grand Agg of 0.1226 also Breaks IBS and NBRSA World Records
George Lozano also shot a superb five-target Aggregate at 200 yards: 0.1439. This gave him a combined 100 + 200 Grand Aggregate of .1226 which is also a new world record. NOTE: for the 200-yard Agg, the actual group measurements (in inches) are summed, averaged and then divided by two to provide equivalency with the 100-yard results. Lozano’s actual group measurements at 200 yards were: 0.205″, 0.307″, 0.220″, 0.409″, and 0.298″. As averaged and divided by two, that is 0.1439. When combined with George’s 0.1014 100-yard Agg, Lozano’s 100+200 Grand Agg is a stunning 0.1226.
Lozano’s 0.1226 Grand Agg breaks both NBRSA and IBS World Records. The current NBRSA Unlimited Grand Agg Record for five, 5-shot groups at both 100 and 200 yards is a 0.133 by Dave Dowd in 2012. The equivalent 100 + 200 IBS Heavy Benchrest Grand Agg Record is a 0.1575 by Lester Bruno in 2004.
The talented shooter, George Lozano (shown above), was modest about his achievement: “Thanks, guys. I appreciate your very kind compliments. It was a good Father’s Day weekend and a fun match.”
NOTE: These records are pending verification by the NBRSA official records committee. But based on the numbers we’ve seen, it looks like Lozano will soon find his name in the record books.
Technical Details
We don’t know much about George Lozano’s load — either the powder or bullet. We’re told he was shooting a 6PPC cartridge in an Unlimited Benchrest rig, also known as a “railgun”. Here is a photo of a modern benchrest railgun. This is NOT Lozano’s record-breaking rig, but it shows the type of hardware used in the modern Unlimited Class.
One of our Forum members complained that he wasn’t able to set his primers flush to the rim. He tried a variety of primer tools, yet no matter what he used, the primers still didn’t seat deep enough. He measured his primers, and they were the right thickness, but it seemed like his primer pockets just weren’t deep enough. He was mystified as to the cause of the problem.
Well, our friend Boyd Allen diagnosed the problem. It was the decapping rod. If the rod is adjusted too low (screwed in too far), the base of the full-diameter rod shaft (just above the pin) will contact the inside of the case. That shaft is steel whereas your case is brass, a softer, weaker metal. So, when you run the case up into the die, the shaft can actually stretch the base of the primer pocket outward. Most presses have enough leverage to do this. If you bell the base of the primer pocket outwards, you’ve essentially ruined your case, and there is no way a primer can seat correctly.
The fix is simple. Just make sure to adjust the decapping rod so that the base of the rod shaft does NOT bottom out on the inside of the case. The pin only needs to extend through the flash hole far enough to knock the primer out. The photo shows a Lyman Universal decapping die. But the same thing can happen with any die that has a decapping rod, such as bushing neck-sizing dies, and full-length sizing dies.
Whenever you use a die with a decapping pin for the first time, OR when you move the die to a different press, make sure to check the decapping rod length. And it’s a good idea, with full-length sizing dies, to always re-check the height setting when changing presses.
Lee Universal Decapping Die on SALE for $9.89
Speaking of decapping tools, MidwayUSA has the Lee Universal Decapping Die on sale this month (June, 2010), for just $9.89 (item 136543). There are many situations when you may want to remove primers from fired brass as a separate operation (prior to case sizing). For example, if your rifle brass is dirty, you may want to de-cap before sizing. Or, if you load on a progressive press, things will run much more smoothly if you decap you brass first, in a separate operation. The Lee Universal Decapping Die will work with cartridges from 17 Fireball all the way up to 45-70. However, NOTE that the decapping pin supplied with this Lee die is TOO LARGE for LAPUA 6.5×47, 6BR, 220 Russian, and Norma 6 PPC flash holes. Because the pin diameter is too large for these brass types, you must either turn down the pin, or decap with a different tool for cases with .059″ flash-holes. Otherwise, the Lee Decapping Die works well and it’s a bargain.
Hail the Rail. If you are looking to put multiple shots through one hole, the Unlimited Class benchrest gun, aka “Rail Gun”, is the firearm of choice. These heavy Unlimited rigs are the most accurate benchtop shooting machines ever created. Campaigned by ace competitors in the 100/200-yard benchrest game, rail guns are capable of delivering the ultimate in rifle accuracy — multiple 5-shot groups in the ones and zeros.
Watch Video to Learn More about Rail Guns and See Them in Action:
In this video, YouTuber “Taofledermaus” takes a look at high-tech rail guns on display at the Visalia (CA) shooting range. He says: “The Unlimited Class rail guns are indeed the epitome of precision shooting. [These rifles] resemble something out of a ballistics test laboratory. Each [rail gun] weighs about fifty pounds…”
One-Hole Accuracy with Rail Gun
What kind of accuracy can a top-of-the-line rail gun deliver? Check out this target shot by our friend Lou Murdica in January 2015 in Phoenix. Sometimes superlatives really aren’t necessary. Just look at that target. Yes that is FIVE shots (although it truly appears like one hole). And it is centered! This remarkable group measured at 0.039″. Lou drilled this group with one of his 6 PPC railguns. Rounds were loaded with Accurate LT-32 powder and Berger 65gr BT bullets. The target was submitted to the NBRSA as a potential new 100-yard Benchrest record in the Unlimited (Railgun) Class.
This is a file photo with Lou Murdica with a different rail gun (not the one that shot above target).
Story/video tip by Boyd Allen. We welcome reader submissions.
Report by Boyd Allen
This pistol belongs to Dan Lutke, a Bay Area benchrest shooter who publishes the results for the Visalia matches to the competitors and the NBRSA. He has been an enthusiastic competitor for an number of years, at various ranges, notably Visalia and Sacramento. The action is a Remington XP-100, to which a Kelbly 2 oz. trigger has been fitted. On top is an old Japanese-made Tasco 36X scope (these were actually pretty darn good). The Hart barrel (a cast-off from Dan’s Unlimited rail gun) was shortened and re-chambered for the 6x45mm, a wildcat made by necking-up the .223 Remington parent case. The custom stock/chassis was CNC-machined by Joe Updike from 6061 Billet Aluminum to fit the XP-100 action and mount a target-style AR grip with bottom hand rest. The gun was bedded and assembled by Mel Iwatsubu. In his XP-100 pistol, Dan shoots 65gr custom boat-tails with Benchmark powder.
TEN Shots in 0.303″ (0.289 MOA) at 100 Yards
How does Dan’s XP-100 pistol shoot? Look at that target showing TEN shots at 100 yards, with eight (8) shots in the main cluster at the top. The ten-shot group measures .303″ (0.289 MOA), as calculated with OnTarget Software. Not bad for a handgun! What do you think, can your best-shooting rifle match the 10-shot accuracy of this XP-100 pistol?
This diagram shows the most common 6x45mm wildcat, which is a necked-up version of the .223 Remington parent cartridge. NOTE: The dimensions for Dan Lutke’s benchrest version of this cartridge may be slightly different.
ACAD drawing by Peter Gnanapragasam CC by SA 3.0, via Wikimedia Commons. Title Added.
Story tip from Boyd Allen. We welcome reader submissions.
