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May 22nd, 2022

Sunday GunDay: .284 Shehanes for F-Open Competition

7mm .285 shehane improved f-class f-open caliber cartridge chambering

High-BC 7mm Bullets7mm (.284) remains the caliber to beat in F-Class Open Division (though some shooters have had success with .30-Cal short magnums.) With a standard .284 Winchester, or better yet, a .284 Improved, you can drive the high-BC Berger 180gr and 184gr bullets to competitive velocities.

The straight .284 Win is an excellent cartridge, quite capable of winning F-class matches. However, in most barrels, it can’t push the 180s at 2900-2950 fps velocity levels*. A lot of barrels will top out at about 2850 fps. That’s where the .284 Shehane comes into play.

The .284 Shehane is a slightly modified wildcat that retains the same 35° shoulder as the parent case. However, by blowing the sidewalls out 0.010″, the .284 Shehane picks up about 3.3 grains of extra case capacity. That enhancement makes a BIG difference. The extra boiler room is enough to drive the 180s at 2900-2950 fps with 30-32″ barrels using H4831sc, Vihtavuori N560, or Alliant Reloder 16. (That’s with a reasonably fast barrel. Some barrels are faster than others.)

Norm Harrold Won 2018 F-Class Open Division Nationals with .284 Shehane Rifle
F-Class Open F-Open Norm Norman Harrold Champion Championship 2018 Raton NM New Mexico 284 Shehane Berger Bullets

Norm Harrold (above) won the 2018 USA F-Class Nationals shooting a .284 Shehane. Norm’s F-Open rig features a McMillan Kestros ZR stock and Bartlein barrel chambered for the .284 Shehane, which has a bit more case capacity than a standard .284 Winchester. Norm loaded Berger 184gr 7mm bullets in Lapua brass. Norm revealed his load in an Erik Cortina YouTube Video.

F-Class shooter Erik Cortina notes that the .284 Shehane has a velocity edge over the straight .284 Win because it holds more powder: “The Shehane has more capacity than the .284 Winchester. Ryan is using 54.0 grains simply as a fire-forming load. Typical load for a Shehane is around 57.0 grains of Hodgdon H4831 SC.” By blowing the sidewalls out 0.010″, the .284 Shehane picks up about 3.3 grains of extra case capacity. That enhancement makes a BIG difference. The extra boiler room is enough to drive the 180s at 2900-2950 fps with H4831sc, with long barrels.

Forum member Jim Hardy has shot the .284 with great success. He tells us: “In my humble opinion, the .284 Shehane is the best balanced long-range round there is — bar none. Here is why:

You have to shoot a 30 Cal Magnum with a 240gr bullet to equal the performance of most 7mm chamberings with the 180 Berger VLD. With the .284 Shehane, you have a .308 bolt face, medium action, and Lapua brass. You use less powder than the 7 mags, and have great accuracy and ballistics even while fire-forming. The .284 Shehane shoots inside the 6.5 AND the straight .284, the .300 WSM, and the .300 Win Mag with less recoil. What is not to love about the 284 Shehane? It is a no-brainer for long range — F-Class or Prone or 1000-yard Benchrest.”

Amazing Accuracy When Fire-Forming .284 Shehane

7mm .285 shehane improved f-class f-open caliber cartridge chambering

If you look at that 5-round group you might think it was shot with a 6 PPC or maybe a 6mmBR. But no, this was done with heavy 180gr Berger Hybrid bullets and the .284 Shehane. In fact, this impressive sub-quarter MOA group was shot while fire-forming with a very well-worn barrel! Gun builder Ryan Pierce of Piercision Rifles explains: “Here’s a 5-shot 0.191″ group at 100 yards with my .284 Shehane fireforming loads. This barrel has 2200 rounds through it. It had 2000 as a straight .284 Win and then I set it back to .284 Shehane to form brass with. [The load was] 180 Hybrids with 54.0 grains of H4831 SC.”

Scotland’s Grant Taylor. who used the .284 Shehane to finish third at the 2009 F-Class Worlds in England says the .284 Shehane is “very accurate with superb vertical spreads at 1000 yards. [This] caliber… has awesome accuracy. I’m getting 2930-2950 fps with spreads in the 3-5 fps range. I use Hodgdon H4831sc powder, CCI BR2 primers, and pointed 180gr Bergers.”

.284 Shehane Showcase — Two Special F-Open Rifles

.284 Winchester Shehane F-Open F-Class 7mm Berger Panda F-Class Blake Machine
Jason Cohen’s “We the People” patriotic .284 Shehane F-Class rifle. This rig scored second place in its very first match, a 3×20 at 1000 yards in Wyoming.

Here’s another handsome .284 Shehane F-Open rifle. Owner Jason Cohen explained why he chose the .284 Shehane chambering: “The .284 Shehane has a proven record of accomplishments and that is why I have chosen it. I use Lapua brass (6.5-284 necked-up), CCI BR-2 primers, Hodgdon H4350 powder, and Berger 184gr bullets. All these components have been a successful combination that has worked flawlessly[.]”

The barrel is a Blake Machine 1:8″-twist finished at 32 inches. It was fitted to my action by Dale Woolum of Woolum Accuracy. Dale also threaded the barrel for a Woolum Accuracy tuner. This has proven to be a valuable tool in my load development.

The rifle began its life as a Will McClosky Cerus stock. This was sent that to Bryan Blake at Blake Machine. Jason noticed that Bryan had been adding aluminum rails to the front of Cerus stocks to lower the center of gravity and improve tracking. Jason asked Bryan to fit the stock with forearm rails, shown in the photo below. Bryan did all the stock work and fitted the action, rails, and RAD recoil pad.

.284 Winchester Shehane F-Open F-Class 7mm Berger Panda F-Class Blake Machine
.284 Winchester Shehane F-Open F-Class 7mm Berger Panda F-Class Blake Machine

The .284 Shehane — Accurate and Forgiving Wildcat
Jason explains why he selected the .284 Shehane chambering: “The .284 Shehane is amazing, very forgiving and not temperamental. Straight .284 or Shehane — you cannot go wrong. I run a 184gr Berger at about 2850 FPS and get great brass life in my other rifles. I usually start to consider tossing the brass around 15 firings. Primer pockets start to get a little looser and the brass seems to need more sizing than the newer brass with less firings.”

.284 Shehane Load Development
Load development for me starts with each new barrel. I screw on the new barrel, fire 25 rounds of whatever I have left over and then clean it. I push out to 600 yards and do a ladder test in round-robin format. I start 0.6 grains lower than my last charge that worked. I work up from that reduced charge weight in increments of 0.3 grains. The paper tells the rest of the story. Once I get something that works well at 600 yards I go back in work around that by 0.1 grains. After that I play a little with seating depth and look for a change. I will occasionally mess with the tuner and tighten things up if possible.

.284 Shehane Raffle Prize Rifle for Team USA

Blake machine Team USA Under-25 Katie Blakenship F-Class F-Open prize raffle rifle tickets Borden action

This stunning .284 Shehane rifle was constructed as a raffle prize to benefit Team USA members preparing for the F-Class World Championship. This eye-catching F-Open rifle was crafted by Blake Barrel and Rifle in Arizona. This prize rifle features all top-of-the-line components: Borden BRMXD Action, Cerus multi-laminate stock with forearm extension, R.A.D. recoil reduction system (hydraulic-damped buttpad), Bix ‘N Andy trigger, and Nightforce Competition scope. The stainless Blake barrel is chambered for the .284 Shehane wildcat, and sports an F-Class Products tuner on the end.

Blake machine Team USA Under-25 Katie Blakenship F-Class F-Open prize raffle rifle tickets Borden action

.284 Shehane Also Shines in 1K Benchrest Competition

The .284 Shehane has won in Benchrest as well as F-Class competition. In 2013, Henry Pasquet won the IBS 1000-Yard Nationals shooting a .284 Shehane. Henry’s Championship-winning rig is shown below. Note the 5″-wide fore-end which is not legal for F-Class. Henry also runs a combo tuner/muzzle-brake.

.284 Shehane Henry Pasquet ibs 1000 yard championship

.284 Shehane Henry Pasquet ibs 1000 yard championship

.284 Shehane Henry Pasquet ibs 1000 yard championship


*Some exceptional barrels chambered in straight .284 Win can reach 2900 fps with the 180s. Ryan Pierce has a 32″ Brux barrel that is delivering 2900 fps with the straight .284. However, Ryan acknowledges that his velocities are not typical: “A lot of .284 Win barrels top out at around 2850 fps with the 180s”.

Permalink - Articles, Bullets, Brass, Ammo, Competition, Gear Review No Comments »
July 19th, 2016

Powder Valley Has Varget One-Pounders in Stock

Varget Hodgdon powder from Powder ValleyToday, July 19th, as of 10:00 am Central Time, Powder Valley has one-pound containers of Hodgdon Varget powder in stock. Price is $23.75 per pound (not including haz-mat fees or shipping).

NOTE: Powder Valley’s current Varget inventory consists of one-pounders only. No 8-pound jugs are available. To order, go to powdervalleyinc.com, then click the Powders link (near the top of page), and then select the Hodgdon link in the row that appears. Scroll down until you see:

“HODVARG-01 *, HODGDON VARGET – 1LB.”

Given the high demand for the most popular Hodgdon Extreme powders, Powder Valley’s inventory of Varget could sell out. If you are in dire need of this powder, act quickly.

More Hodgdon Extreme Powders in Stock:
Powder Valley does not have any H4350 at this time but it DOES have ALL these other Hodgdon Extreme powders in both 1-pound and 8-pound containers:

H4198 (YES 1-lb and 8-lb)
H322 (YES 1-lb and 8-lb)
Benchmark (YES 1-lb and 8-lb)
H4895 (YES 1-lb and 8-lb)

H4831 (YES 1-lb and 8-lb)
H4831SC (YES 1-lb and 8-lb)
H1000 (YES 1-lb and 8-lb)
Retumbo (YES 1-lb and 8-lb)
H50BMG (YES 1-lb and 8-lb)

Hodgdon Extreme powders

Permalink Hot Deals, Reloading 2 Comments »
April 22nd, 2016

IMR® Powders introduces IMR 4955 Enduron Powder

Hodgdon IMR Enduron 4955 temperature stable powder reduced fouling

In 2015, IMR® Powder introduced a new line of powders with Enduron® Technology. These powders are designed to address several performance gaps as powder technology has advanced. Here are key features of the Enduron line of propellants:

  • Enduron powders contain an additive that drastically reduces copper fouling in the gun barrel. Copper fouling should be minimal, allowing shooters to spend more time shooting and less time cleaning a rifle to retain accuracy.
  • The new Enduron line is insensitive to temperature changes. Whether a rifle is sighted in during the heat of summer, hunted in a November snowstorm or hunting multiple locations with drastic temperature swings, point of impact with ammunition loaded with Enduron technology will be very consistent.
  • Enduron powders provide optimal load density, assisting in maintaining low standard deviations in velocity and pressure, a key feature for top accuracy.
  • Enduron technology is environmentally friendly, crafted using raw materials that are not harmful to the environment.

Hodgdon IMR Enduron 4955 temperature stable powder reduced fouling

New IMR 4955 for Larger Cartridges
For 2016, IMR has introduced IMR 4955, a new Enduron extruded powder that is a top performer with popular cartridges such as 270 Winchester, 25-06 Remington, 280 Remington, 300 Winchester Magnum and many more. This new powder falls directly between the new IMR 4451 and IMR 7977 in burn speed, providing excellent performance for most big-game cartridges. Like all Enduron Technology powders, IMR 4955 is temperature insensitive, as shown below.

Hodgdon IMR Enduron 4955 temperature stable powder reduced fouling

Adding this propellant to the Enduron line filled in an important place on reloading benches. IMR 4955, plus the original three Enduron powders, provide excellent loading solutions for cartridges from 223 Remington to the massive 500 Nitro Express Magnum. Further, in these days of powder shortages, these new Enduron powders can fill a gap by providing comparable performance to select Hodgdon® powders. Specifically, IMR 4955 is a great choice for cartridges that work well with Hodgdon H4831.

Hodgdon IMR Enduron 4955 temperature stable powder reduced fouling

IMR Enduron 4955 is available in one-pound (1 lb.) and eight-pound (8 lb.) containers from quality reloading retailers.

Permalink New Product, Reloading 4 Comments »
January 15th, 2015

7mm Shehane — Winning Wildcat for F-Open

After we posted Erik Cortina’s video featuring the trimming of 7mm Shehane cartridges with a Giraud Power Trimmer, many of our readers asked: “What’s a 7mm Shehane? How does it differ from a standard .284 Winchester?” To answer that question, we’re reprising a “cartridge profile” we ran a couple seasons back. This talks about the qualities of the 7mm Shehane, and includes a reamer print. The 7mm Shehane is an excellent “upgrade” to the .284 Win. The added capacity may not seem like much, but it allows some Shehane shooters to reach a higher, optimal velocity node.

AccurateShooter.com .284 Shehane Wildcat Winchester F-Class

High-BC 7mm Bullets7mm is the caliber to beat in F-Class Open Division (though many guys are looking hard at the big 30s.) With a standard .284 Winchester, or better yet, a .284 Improved, you can drive the high-BC Berger 180gr bullets to competitive velocities. A .284 Improved will shoot well inside a 6.5-284, and you’ll probably get significantly longer barrel life (at least 1800 rounds vs. as little as 1200 for the 6.5mm).

The straight .284 Win is a good cartridge, but in most barrels, it can’t push the 180s at 2900-2950 fps velocity levels*. A lot of barrels will top out at about 2850. That’s where the .284 Shehane comes into play. The .284 Shehane is a slightly modified wildcat that retains the same 35° shoulder as the parent case. However, by blowing the sidewalls out 0.010″, the .284 Shehane picks up about 3.3 grains of extra case capacity. That enhancement makes a BIG difference. The extra boiler room is enough to drive the 180s at 2900-2950 fps with H4831sc. With N560 or Reloder 17 you can go even faster.

Scotland’s Grant Taylor used the .284 Shehane to finish 3rd overall in the 2009 individual F-Class World Championships at Bisley, England. Grant reports: “I have a .284 Shehane and it’s very accurate with superb vertical spreads at 1000 yards. I have to thank Jim Hardy for putting me onto the caliber, it has awesome accuracy. I’m getting 2930-2950 fps with spreads in the 3-5 fps range. I use Hodgdon H4831sc powder, CCI BR2 primers, and pointed 180gr Bergers.”

7mm .284 Winchester Shehane

Forum member Jim Hardy has shot the .284 with great success. He tells us: “In my humble opinion, the .284 Shehane is the best balanced long range round there is — bar none. I (perhaps_ have shot more of this chambering than anyone else, and it has proven better than I ever expected. Here is why:

You have to shoot a 30 Cal magnum with a 240gr bullet to equal the performance of most 7mm chamberings with the 180 Berger VLD. With the .284 Shehane, you have a .308 bolt face, medium action, and Lapua brass. You use less powder than the 7 mags, and have great accuracy and ballistics even while fire-forming. The .284 Shehane shoots inside the 6.5 AND the straight 284, the 300 WSM, and the 300 Win Mag with less recoil. The .284 Shehane offers twice the competitive barrel life of the 6.5-284, an easy 2950 fps with H4831 SC, [and it] can run 3000+ with N560 and Reloder 17, which is right there with the 7mm WSM. What is not to love about the 284 Shehane? It is a no-brainer for long range — F-Class or Prone or 1000-yard Benchrest.”

*Some exceptional barrels chambered in straight .284 Win can reach 2900 fps with the 180s. Ryan Pierce, who recently set a 450-24X Pending F-Open record, has a 32″ Brux barrel that is delivering 2900 fps with the straight .284. However, Ryan acknowledges that his velocities are not typical: “A lot of .284 Win barrels top out at around 2850 fps with the 180s.”

Permalink Bullets, Brass, Ammo 3 Comments »
April 23rd, 2013

Hard-to-Find Hodgdon Powders at Cabela’s (Limited Quantities)

Cabelas.com has just made available some of the hard-to-find Hodgdon propellants, in 1-lb containers. H4831sc, Benchmark, H380, Hybrid 100V, Retumbo, H414 are all showing as “in stock” with prices ranging from $22.99 to $27.99 per pound, with a $20.00 HazMat fee. There is a catch — purchasers are limited to two (2) pounds of any Hodgdon powder product per order, per day. The 1-lb containers of H4831sc are currently on sale at $25.99, marked down from $27.99. NOTE: Varget was available earlier today at Cabelas.com, but Varget actually sold out minutes before this story was published. Good luck grabbing some of the other powders!

CLICK HERE: Cabelas.com Hodgdon Powder

Permalink Bullets, Brass, Ammo, Reloading 3 Comments »