Army of Minis getting ready to conquer the world (well at least the world of shooting).
The Minis are Coming! The Minis are Coming!
Good new for fans of the SEB Mini coaxial tripod rest. This superb compact joystick rest has been in high demand, creating a long waiting period. Now scores of bright new Minis are being readied for shipment to the USA, Canada, and other nations. On Monday, July 13, Sebastian (“Seb”) Lambang posted a Facebook photo of Minis getting ready to ship. That inspired scores of “likes” from Seb’s Facebook fans including action-maker Jim Borden and past F-Class National Champ James Crofts. Larry Bartholome, another former F-Class Champion, wrote: “Hey SEB — people are looking forward to more Mini Mondays!”
Sebastian (“Seb”) Lambang’s SEBRests.com team is shipping these out worldwide to meet demand. The great thing about the Mini is that it folds up into a small package, making it much easier to transport than a conventional coaxial front rest such as the Seb NEO or Farley.
Responding to Seb’s Facebook post, Todd Banks posted this photo with the comment “Love my Mini!”:
SEB Mini in Action at Berger Southwest Nationals
Even though the Mini is compact and relatively light weight, it is very stable and gives up very little in performance to a full-sized joystick front rest such as the SEB NEO. Our Systems Admin Jay Christopherson uses a SEB Mini. In the 2017 Berger SWN, Jay finished Second in F-Open Class just one point behind winner David Gosnell, thereby proving the SEB Mini is “competition ready”. Jay reports: “I’m glad I had the SEB Mini — it worked great and was much easier to transport and carry from position to position.” Here’s Jay using the SEB Mini to drill a string of Xs with his .284 Winchester F-Open rifle.
Carry Bag for SEB Mini
With the success of the SEB Mini, Seb Lambang has designed some accessories. Here is a prototype carry package, the Mini Transporter. This compact bag will hold a Mini even with big F-Class feet attached.
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March 48x52mm High Master Scope — Tested in Competition
by Jay Christopherson, AccurateShooter.com Systems Admin
Using a fixed power scope on your F-Class rifle is not only effective, but can save you weight and money — key benefits when it comes to the F-Class game.
I recently tested the March High Master 48x52mm scope on my F-Open rifle in three different matches, including a Long Range Regional match in Montana and the recent 2017 US F-Class National Championships in Lodi, WI. While I’ve long been considering a fixed-power optic, it wasn’t until a recent F-TR build came in over-weight (with a large zoom scope), that I finally decided to give it a fixed-power comp scope a try. The March High Master 48x52mm saved me both weight (10.6 oz. or 300 grams) and money ($800+) compared to a top-end, variable-power March.
Across three matches and multiple conditions (including heavy mirage), I never found myself wishing that I had a variable-power scope on top of my rifle. And I never experienced issues holding rings on the target. A fixed-power scope might not be for everyone. However a serious F-Class shooter who needs to cut some weight, or save a little cash (compared to high-end zoom scope), shouldn’t be worried about being “under-glassed” with a fixed power scope such as the March HM 48x52mm. It can do the job. [Editor: Jay finished second overall in F-Open Division at the 2017 F-Class Nationals.]
The Case for A Fixed Power F-Class Optic
There’s been a thought bouncing around and growing in my head for the past few years while shooting F-Class — Why don’t more guys shoot a fixed power scope in F-Class? Nine out of ten F-Class shooters I’ve polled spend most of their time between 40 power and 50 power, regardless of the conditions. It seemed to me that a fixed power in the 40X – 50X range would be a great option.
I’ll admit, that I’ve long been an advocate of needing a variable-power scope so that I could “dial down to see the rings” on those really heavy mirage relays. There’s even been times when I’ve been successful dialing down to 35X – 25X just for that reason. But still, like most guys, I find that I rarely go above 50X and rarely below 40X – 99% of my time is spent right around 42X – 45X. Having gotten used to shooting high magnification now, it’s been quite a long time since I’ve bothered to dial down below 40X, even in very heavy mirage. But, I held on to that notion that it’s better to have it and not need it, than to need it and not have it.
I recently built an F-TR rifle. I made a slight mistake on the weight. Fully built with my zoom scope, the rig ended up at 8.3kg (8.25kg is the limit for F-TR). That’s not much overweight, but I don’t like to be too close to the limit anyhow. There are lots of ways I could have addressed the issue, but I started thinking again about the scope. I love my current variable-power scopes, but I couldn’t help thinking that a fixed power scope in the 40X – 50X range might solve my issue nicely (and give me a chance to try something new). So I obtained a March High Master 48x52mm fixed-power scope to test. The 48X magnification falls right into my comfort zone. With its 52MM objective, the March HM matched the profile of my existing variable-power scopes nicely. Aesthetics is at least part of the goal and in my opinion, 50MM+ objective scopes look “right” on F-Class rifles. It’s also worth noting that this is the only fixed power scope that I have tried so far and that I have no affiliation with the manufacturer.
There’s the notion out there that fixed power scopes have inherently brighter sight pictures or maybe “clarity” is a better word. This may be due to there being less complex lenses and fewer parts inside. I don’t have any way to quantify that, so I’ll just say that the image clarity is excellent on the 48X March. I also found that the scope weighed 300 grams less than my variable-power scope, which brought me under the F-TR weight limit nicely, as I had hoped.
Fixed-Power Scope at 2017 F-Class Nationals and Other Matches
Because my F-TR rifle was still in load development, I decided to try out the March HM 48x52mm at a couple matches on my F-Open rifle, while I waited on a part for my F-TR rifle. I fitted the 48x52mm scope to my F-Open rifle and used it at three matches: 1) a local 600-yard mid-range match in WA State; 2) the Long Range Regional at Deep Creek in Montana; and 3) the 2017 US F-Class Nationals in Lodi, WI. I ended up using it the entire match at all three matches. With three different matches, all a few weeks apart and in different parts of the country, I got a nice cross-section of light, weather, and mirage conditions to sample. At all three matches, and even in a medium-heavy mirage situation, I never found myself wishing I could dial down the power. In fact, I never thought about variable power at all — the scope was excellent in all of the different conditions. Even with a good deal of mirage present, I never had a problem making out the rings well enough to hold on. For what it’s worth, I used the scope while shooting on two different teams that set (pending) National LR and MR F-Open team records at those matches. If I didn’t have confidence in a fixed-power scope (and the March in particular), I would never have taken a chance shooting it where a team depended on me. [Editor: In individual competition, Jay finished second in F-Open at the Nationals.]
Scope Tracked Great and Click Values Were Right On
In terms of technical details, the scope tracked perfectly on my scope checker (there are several threads on the AccurateShooter forums regarding checking a scope for drift), which meant I felt comfortable using it at the F-Class Nationals. Critically, I spent a good bit of time working on the ocular focus (reticle focus) so that it would be perfectly set-up for my eye. I’ve found that many complaints about parallax and “soft” or “blurry” images can be traced back to the owner never taking this critical step with a new scope. Normally my scopes all have external, tactical-style turrets — the March HM 48×52 has covered turrets. I wondered how this would work for me, but again, I never thought about it while shooting. Once the covers are off, the clicks are extremely tactile and easy to read and it just never became an issue. The parallax adjustment works nicely and the scope tracked well with every adjustment I made, from 600 yards to 1000 yards.
What Could Be Improved
On the con side of things, I find the scale on the elevation turret to be a bit confusing. Most scopes I have used have an incrementing scale on the elevation (and windage) turrets, so that you can count up from zero as you dial up the adjustments. The 48X HM uses a ‘0’ that is centered on the turret travel (see photo above), so that you count down or up on the scale. Here, I would prefer a scale that bottoms out at zero (or that you can adjust to bottom out at zero) and then increments. I think it’s an easier and more consistent way to measure, but your mileage may vary. Other March scopes I’ve used have a color-coded system on the turrets which I also find a little less than useful. Again, I wouldn’t mind at all if March re-thought its system there.
The other con for me is the eye-relief. It’s middle of the road as far as other high-end scopes I’ve used, but for me personally, I still find it a bit on the short side — I would prefer more eye relief.
Save Hundreds Compared to a Premium Zoom Scope
On the plus side (from a cost standpoint), fixed power scopes are generally priced quite a bit lower than equivalent-quality, variable-power optics. The March HM 48x52mm (product # MAR1076) I tested is no exception. Bullets.com sells the HM 48x52mm for $1951.00. That’s $810 less than its variable-power relative, the March HM 10-60x52mm, priced at $2763.00. I consider the 48x52mm’s $1951 price to be very reasonable for such a quality piece of hardware.
Conclusion — High-Quality, Fixed-Power Scopes Are Worth Considering
Overall, if you find that you spend 99% of your time in the 40X – 50X range with your variable-power scope, I’d encourage you to give some thought to a fixed-power scope for F-Class. I’ve only tried one fixed-power optic — the March HM 48x52mm. But having used this excellent, fixed-power scope in several high-level F-Class competitions now, I’d have no qualms about recommending a high-grade, fixed-power optic to anyone shooting F-Class.
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“A big congratulations to Bob Mead (1582-68X), who utterly destroyed the competition in tricky wind conditions to take the Gold.” — Jay Christopherson, F-Open Second Place.
The 2017 F-Class National Championships in Lodi, Wisconsin are now history. Hail the new Champions: Robert Mead, F-Open (1582-68X) and Ian Klemm, F-TR (1557-56X). Hosted by the Winnequah Gun Club, the Nationals drew about 75 F-Open shooters and 45 F-TR competitors, down from last year. In F-Open, Robert Mead shot brilliantly in tough conditions to finish 14 points ahead of his closest competitor, AccurateShooter.com’s System Administrator Jay Christopherson. Erik Cortina was just one point behind Jay, but Erik had the high X-Count for the match at 71X.
Photos of Robert Mead and Ian Klemm courtesy Erik Cortina.
In F-TR, Ian Klemm also won by a margin of 14 points. This was an impressive win by Ian, given the challenging winds and weather. F-TR runner-up Todd Sanders also shot remarkably well, considering he is a relative newcomer to F-Class. Forum member KyBountyHunter observed: “Outstanding shooting this week gentlemen, in some of the most challenging conditions that I’ve seen. Congrats to all the winners. Ian — fantastic job taking First Place (well deserved) [and] special congrats to Todd. For this only being his second year in F-TR, he’s going to be force to be reckoned with for a long time!”.
Final Results for F-Open (TOP 10):
1. Robert Mead: 1582-68X HM
2. Jay Christopherson: 1568-59X HM
3. Erik Cortina: 1567-71X HM
4. John Myers: 1558-64X HM
5. Pat Scully: 1558-50X HM
6. Larry Bartholome: 1554-55X HM
7. Robert Sebold: 1554-41X HM
8. Steve Harp: 1553-58X HM
9. Jeff Hopkins: 1551-49X MA
10. Lou Murdica: 1550-46X MA
Final Results for F-T/R (TOP 10):
1. Ian Klemm: 1557-56X HM
2. Todd Sanders: 1543-43X MA
3. Brad Sauve: 1542-44X MA
4. Laura Perry: 1539-46X EX
5. Daniel Pohlabel: 1534-49X MA
6. Josh Moore: 1529-37X EX
7. Ken Klemm: 1528-38X MA
8. Bob Lorenz: 1525-47X EX
9. Raymond Weaver: 1522-36X HM
10. Alan Barnhart: 1521-31X HM
Strong Performances by Members of Team Lapua-Borden-Brux
Jay Christopherson posted: “A big congratulations to Bob Mead (1582-68X), who utterly destroyed the competition in tricky wind conditions to take the Gold. This was a great end to the 2017 competition season for me as I managed to hang on by the skin of my fingertips to win Silver at the 2017 F-Class US National Championships (F-Open).” For the record, Team Lapua-Borden-Brux ended up with all five present members of the team in the Top 8 of the Grand Aggregate.
Jay Christopherson (2nd, 1568-59X, Silver)
Erik Cortina (3rd, 1567-71X, Bronze)
Pat Scully (5th, 1558-50X)
Bob Sebold (7th, 1554-41X)
Steve Harp (8th, 1553-58X)
In team competition, Team Lapua-Borden Brux won the F-0pen Long Range Championship as well as the Mid-Range Championship. Jay told us: “That was some outstanding shooting by great team members. I’m really looking forward to the 2018 season.” Erik Cortina added: “So proud of our team. We conquered the 2017 LR National Championship as well as the Mid-Range National Championship. We could not have done it without our sponsors: Lapua, Borden Actions, and Brux Barrels.”
In the F-TR Team Competition, mighty Team Sinclair triumphed yet again, winning its 10th Long Range National Championship. Team member Paul Phillips offered this interesting factoid: “This year we won with the original four members we had in 2004 plus Dan Pohlabel. It’s pretty awesome to be shooting with the same guys for 13 years! What a great run since 2004.” And those same four also all hail from Midland, Michigan (Midland County Sportsman’s Club). Team Sinclair still holds the 4-man Team 1000-yard National Record. Shown below, L to R, are team members: Daniel J. Pohlabel, Paul Phillips, Raymond Gross (Coach), Brad Sauve, and John Droelle.
All Team Sinclair members use identical hardware: McMillan XiT stock, Kelbly Panda action, Bartlein barrel, Nightforce scope, and Phoenix Precision bipod. All shoot Berger 200-20X bullets in Lapua brass.
The One that Got Away — Almost Matching F-Open 20-Shot Record
Erik Cortina shot a superb 200-16X during the competition (see electronic target scoring screen below). That was just one X shy of the current 200-17X National Record. Erik observed: “So close, yet so far. Almost matched the National Record of 200-17X but shot a ten on my very last shot. Everything felt good but luck was not on my side.”
File photo from Lodi at past F-Class Nationals.
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WA Team members, left to right: Tod Hendricks, Jay Christopherson, Monte Milanuk, David Oakes.
F-Class competition continues to evolve, as guns and shooters get better every season. That means records get broken. Yet another record was smashed this month as the “Washington F-Open” team scored 1794-121X, a new pending National Record. That stunning combined team score beats the previous best by five points and more than 20 Xs. We believe the current record is 1789-100X, set at the 2017 Berger Southwest Nationals.
The new 1794-21X team record was set at the 2017 Northern Rockies LR F-Class Regional Match, held September 6-8 at the Deep Creek Range outside Missoula, Montana. This is a three-day, long range regional F-Class match consisting of two individual days and one team day.
Team Member Jay Christopherson, who won the F-Open Division, was proud of his Team’s accomplishment: “We were very excited when our shooting held up at 1000 yards to break the record.” Forum member Pat F., who also shot the match in Montana, said this was a really impressive performance: “I think that record will stand for a while.”
World’s Most Accurate IT Guy Wins F-Open with Brilliant Performance
Our AccurateShooter.com Systems Administrator, Jay Christopherson, won the F-Open Division with a superb 1047-62X individual performance. Remarkably, when you combine that 1047-62X with his 449-33X score in the team match, Jay dropped only four (4) points the entire weekend over 150 shots (105 shots in individual competition and another 45 in the team match). That is a combined percentage 99.73% in the Ten-Ring. Amazing! Jay is definitely “The World’s Most Accurate IT Guy”. Congrats Jay.
Jay was shooting a new F-0pen rifle built with his favorite hardware: a smooth-cycling Borden BRMXD action riding in a hardwood X-Ring stock. The barrel was a 32″-long, 1:9″-twist Bartlein chambered for the .284 Winchester cartridge. All team members were shooting straight .284 Wins with Berger 180gr Hybrid bullets. Jay was using a new scope, a fixed-power 48x52mm March High Master. Jay was impressed with the sharpness, clarity, and reliability of this scope. He said that during the match he never felt the need to dial-down power, so the 48X fixed magnification worked fine.
Jay reports: “Conditions were generally pretty good. Not perfect, but almost… There was enough change to push you out of the 10-Ring if you were not careful, but overall, the conditions were about as consistently good as you can expect. There was also some smoke haze, particularly on Friday and Saturday, that made seeing the target a challenge and looking at mirage was basically impossible. But, for all that, the wind was mostly very, very kind.”
“This is the fourth year I have traveled to shoot this match and as always, it was an excellent match. Jamey Williams does an outstanding job of herding cats and ensuring that the match runs smoothly. Bob Evans ran the line and really did an excellent job of keeping everyone safe and the match moving.”
Here is an aerial view of the Deep Creek Range (Drone video by David Gosnell):
Northern Rockies LR F-Class Regional Match Results
Individual Top Three Shooters (1050-105X Possible)
F-Open Division:
Jay Christopherson, 1047-62X, MW
Tod Hendricks, 1043-61X, 2nd MW
Jim Williams, 1041-51X, 3rd MW
F-TR Division:
Justin Covey, 1030-48X, MW
Tom Hubbard, 1030-41X, 2nd MW
John Van Santford, 1027-36X, 3rd MW
Jay Christopherson, 449-33X
Tod Hendricks, 448-28X
David Oakes, 448-30X
Monte Milanuk, 449-30X
F-TR Winning Team: “Misfits”, 1751-50X
John Van Santford, 436-14X
Beverly Van Santford, 441-13X
Phil Brackenbury, 436-12X
Larry Bandaccari, 438-11X
Course of Fire: The individual days are a 105-shot aggregate, consisting of a 45-shot Palma (800/900/1000) followed by a 20-shot x 1000 (Day 1) and a 40-shot x 1000 match (Day 2). The team match is a 45-shot per team member Palma match (800/900/1000).
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The new SEB Mini joystick (coaxial) pedestal rest has been a huge success. Sebastian (“Seb”) Lambang’s SEBRests.com team is shipping these out worldwide to meet demand. The great thing about the Mini is that it folds up into a small package, making it much easier to transport than a conventional coaxial front rest such as the Seb NEO or Farley. Shown above is an army of Minis getting ready to conquer the world (well at least the world of shooting).
Even though the Mini is compact and relatively light weight, it is very stable and gives up very little in performance to a full-sized joystick front rest such as the SEB NEO. At the Berger SW Nationals last month, our Systems Admin Jay Christopherson used a SEB Mini. Jay finished Second in F-Open Class just one point behind winner David Gosnell, thereby proving the SEB Mini is “competition ready”.
Jay reports: “I’m glad I had the SEB Mini — it worked great and was much easier to transport and carry from position to position.” Here’s a short video of Jay using the SEB Mini to drill a string of Xs with his .284 Winchester F-Open rifle.
New Carry Bag for SEB Mini
With the success of the SEB Mini, Seb Lambang has already started designing some new accessories. Here is a prototype carry package, the Mini Transporter. You can see this compact bag will hold a Mini even with big F-Class feet attached. Seb says: “I’m experimenting with soft case for Mini rest… Your thoughts?” We think Seb should certainly offer this case for sale. Post your thoughts in the comment section below.
SEB Mini with large disc feet attached still fits in bag.
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The 2017 Berger Southwest Nationals (SWN) are now history. This was a great match, with extremely close competition, and record-setting scores. For the first few days, conditions were very mild. That allowed the “top guns” to shoot “cleans” and even set a few new National records. In individual competition, there were familiar faces among the Top Ten, but also some rising stars. In the F-Open and Sling team events, two new squads topped some of the experienced “all-star” teams. Overall it was a great match — one of the most tightly contested ever. Even with 400 competitors, everything ran smoothly. For those who attended the 2017 Berger SW Nationals, this has been a truly memorable week at Ben Avery. F-Open and F-TR Final Results Posted HERE.
This is our final Berger SW Nationals video for 2017, with interviews with the three class winners: John Whidden (Sling), David Gosnell (F-Open), Donald Erpenbach (F-TR).
Top Five Competitors in Each Class
SLING
John Whidden, 1248-84X
Adrian Harris, 1243-74X
Allen Thomas, 1242-65X
Justin Skaret, 1242-59X
Erik Rhode, 1241-59X
F-OPEN
David Gosnell, 1247-84X
Jay Christopherson, 1246-74X
Keith Glasscock, 1245-79X
Pat Scully, 1243-71X
Dan Bramley, 1243-70X
F-TR
Donald Erpenbach, 1230-53X
James Crofts, 1225-43X
Alan Barnhart, 1224-32X
Ian Klemm, 1222-55X
Bryan Litz, 1222-49X
Bryan Litz congratulates Sling winner John Whidden. John is reigning National Long Range Rifle Champion.
Below are SWN F-Open Champion David Gosnell (left) and F-TR Winner Donald Erpenbach (right).
Record-Setting Performances in 2017
This year Ben Avery conditions were very good — calm mornings, and little wind in the afternoons for the first three days. With the very calm Day 1-3 conditions, we witnessed some spectacular individual and team performances. Lester Bruno shot a brilliant 200-23X at 600 Yards, setting a new National record. Ian Klemm set a new 60-shot, 600-yard National record of 599-38X. The Cluster Ducks set a new National F-Open Team Record for 800/900/1000 yards with their 1789-100X Score. And the talented North-by-Southwest F-TR squad set both a National Record and an overall SWN match record.
The North-by-Southwest team won the 2017 SWN F-TR team event in fine fashion, setting new National and range records in the process.
And here is Team Longshots, winner of the F-Open Team Title. Individual F-Open Champ David Gosnell is at far right. The winning Sling Team was Scotland Thistle.
Forum Admin Finishes a Very Close Second in F-Open
Hats off to AccurateShooter.com’s very own Systems Admin, Jay Christopherson. A talented tech expert, Jay runs our web servers and manages our Forum software. His skills and dedication keep the Forum running smoothly, even as we approach 35,000 members. Jay shot a brilliant match at Ben Avery this week, finishing second in F-Open, just one point behind F-Open winner David Gosnell. We’re proud of Jay, and we want to recognize his achievement. It’s interesting to note that Jay shot the entire match with the new SEB Mini rest, and he was using a Vortex 15-60x52mm Golden Eagle scope. Here’s a short video of Jay shooting his .284 Win rifle on Saturday.
The show’s over — it’s time to pack up the gear and head on home. We’re already looking forward to the 2018 Berger SWN. See you next year!
Big News for Berger Bullets
Big news in the Industry is that Berger Bullets is becoming part of the Nammo Group, parent of Lapua, Vihtavuori, SK and other companies. This major acquisition will combine Nammo’s resources and advanced engineering with Berger’s match-winning bullet designs and strong focus on competition. Yes, you can expect to see factory-loaded ammunition with Berger projectiles and premium Lapua brass. To learn more about the big Berger/Nammo deal, watch this interview with Berger President Erik Stecker.
Eric Stecker, Berger’s President, says the exact timing of the move has not yet been set, nor has the location been chosen. Arizona is high on the list of potential sites, but Berger is considering other states as well. Once the new factory location is determined, Eric says he expects the move to be completed “by December 2018 at the latest”.
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“All dressed up and nowhere to go” was the comment our IT guy, Jay Christopherson, sent with this photo. This is Jay’s testing set-up at his home range, complete with PVM-21 chronograph and wireless target-cam. The camera signal is sent, via WiFi, to Jay’s laptop computer. However, even with all that high-tech electronic gear, you can’t make the shot if you can’t see the target through the rifle-scope. On this morning, heavy ground fog completely obscured the target. Jay told us: “I ended up waiting a little over an hour for the fog to burn off enough so that I could see the 600-yard target. What was funny was that I had a perfectly clear picture of the target via the target-cam and monitor. But there was no way to aim the rifle since the riflescope showed nothing but fog.”
This photo was taken by Jay at the Cascade Shooting Facility in Ravensdale, WA. The rifle is Jay’s .284 Shehane F-Class rifle. Jay was testing primers for Extreme Spread (ES) variation around 9:00 am. Nature was not cooperating. Jay was running Hodgdon H4831sc and testing various primers to see which provided the best numbers.
The chronograph is the Kurzzheit PVM-21. Equipped with infrared sensors, the PVM-21 is our “go-to” chron for most velocity testing, with an Oehler 35P for “back-up”. The PVM-21 (now updated with Kurzzheit’s BMC-19 model) sets up quickly and gives reliable results in any light conditions. But there is something even more sophisticated on the horizon — the new Labradar, a “stand-off” chronograph that uses Doppler radar to measure bullet speed.
Jay explains: “I am (somewhat) patiently waiting for the new Labradar to release. The PVM-21 works pretty well most of the time and is easy to setup. I do get odd readings out of it every so often, but they are pretty obvious when they occur.” The advantage of the Labradar (if it ever comes to market) is that the unit sits to the left or right of the rifle. The Labradar is situated out of the bullet path, so there is no chance of shooting the chronograph by accident. Another advantage of the Labradar is that you can set it up without needing to go forward of the firing line, which would require a safety break.
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Our IT guy, Jay (aka JayChris in the Forum), was having some issues with his .260 AI. A load with known accuracy had suddenly and mysteriously stopped shooting well. Jay couldn’t figure out what was going wrong. Then he remembered he had cleaned his brass using a powerful ultrasonic machine.
He inspected his brass carefully and saw that the ultrasonically-cleaned necks were so “squeaky clean” that he was actually scratching the jackets on his bullets when seating them. As well, Jay noticed that it took more force to seat the bullets and the seating force became less uniform case to case. Jay solved the problem by applying NECO Moly dry-lube inside the necks of his brass before seating the bullets.
The Perils of Ultrasonic Brass Cleaning by JayChris
I rotate my brass so that I can keep track of each firing, so I keep a “clean/ready to load” bin and a “fired” bin. I have 400 pieces of .260 AI brass. So, all of it was on its first firing (after doing a Cream of Wheat fire-forming) until I hit the 400-round mark. To my surprise, things went south at the 500-round mark. The first time I noticed it (according to my range log) was at a match last year, when I dropped several points and had some vertical stringing issues. After that match, I had 400 rounds through the barrel and all of my brass had a single firing on it. So, it was time to clean.
I have used an ultrasonic cleaner for a while now. I recently got a more powerful Ultrasonic cleaner, although I don’t know if that makes a difference. My brass comes out dry and squeaky. Emphasis on the “squeaky”.
I found that my new US machine may have been getting the necks TOO clean. After ultrasonically cleaning my brass, I had noticed that it required a little more force to seat the bullets, but I didn’t really think too much about it. But then, after going over my ordeal with a shooting buddy and going over my process in minutiae, we had an “AH HA” moment when it came to cleaning (he uses good ol’ vibratory cleaning).
So, I used some moly dry-lube to pre-lube the case necks and took some rounds out to test at 200 yards. I used my last known good load and sure enough, the vertical flyers disappeared! I shot two, 10-rounds groups with .335 and .353 MOA vertical dispersion, which is consistent with the results I was originally getting.
Other folks have suggested necks may get “too clean” after ultrasonic cleaning. It was pretty sobering to actually witness, first hand, what can happen when brass is “too clean”. I had read some discussions of issues with neck friction/bullet seating after ultrasonic cleaning, but, frankly, I dismissed the idea. Now I understand. The “too clean” effect doesn’t seem to affect my Dasher at all (perhaps because Dasher necks are very short), but on the bigger .260 AI, it definitely does.
Close-Up Photos of Case-Necks
Here are photos Jay took with a microscope. You can see the difference between tumbled brass and ultrasonically-cleaned brass. Jay says: “Here, in sequence, are the Ultrasound-squeaky-clean case neck, a case neck after treatment with NECO moly dry-lube (you can see the particles that will help coat the neck during seating), and, finally, the neck from a case cleaned with corncob media in a vibratory tumbler. You can clearly see how much smoother the inside of the tumbled neck is. Yes, it’s dirty, but it’s also very, very smooth.
Close-Up of Scratched Bullet
Here is a close-up of a bullet that was seated in an ultrasonically-cleaned (“squeaky clean”) neck, with no lubrication. You can clearly see the damage done to the jacket — in fact, in a couple spots you can see the lead core through the scratches! Jay also observed that quite a bit more seating force was required to seat the bullet in a “squeaky clean” neck.
NOTE: The bullet jacket is naked — NOT coated in any way. It looks a little dark because of the shadow from the microscope lens, and the high contrast.
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Our IT guy, Jay (aka JayChris in the Forum), was having some issues with his .260 AI. A load with known accuracy had suddenly and mysteriously stopped shooting well. Jay couldn’t figure out what was going wrong. Then he remembered he had cleaned his brass using a powerful ultrasonic machine.
I have used an ultrasonic cleaner for a while now. I recently got a more powerful Ultrasonic cleaner, although I don’t know if that makes a difference. My brass comes out dry and squeaky. Emphasis on the “squeaky”. 
