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November 11th, 2023

Saturday Movies: 7mm Hunting Rifle Cartridge Options

7mm RSAUM PRC Remington Magnum RemMag Winchester Short Magnum WSM 7mm-08 Sako S20

We are coming to the end of another fall hunting season. If you are pursuing big game, such as Elk in the Rockies, you want a powerful cartridge that is also highly accurate. We like the 7mm for big game hunting as there are a wide variety of options — from the 7mm-08 up to the very large 7mm magnums. And Hornady’s new 7 PRC has quickly earned a following among hunters. In today’s Saturday Movie Showcase, we feature seven videos covering a wide selection of 7mm cartridge types including: 7mm-08 Rem, 7×57 Mauser, 7mm PRC, 7mm WSM, 7mm SAUM (aka RSAUM), 7mm Rem Mag, and 28 Nosler.

7mm PRC in Custom Rifle

The 7mm PRC was created by Hornady as part of the PRC series which includes the 6.5 PRC and 300 PRC. With a modern, non-belted magnum case design the 7mm PRC offers excellent power with good ballistics. The 7mm PRC can drive high-BC 175 grain bullets at 3000 FPS, making it very effective at putting down large game. This Precision Rifle Network video features a high-end custom 7mm PRC rifle built with a Terminus Zeus action, 29″ barrel, Grayboe stock, Triggertech trigger and Athlon scope. This 7mm PRC rig shows impressive accuracy.

7mm Remington Magnum vs. 7mm PRC

In this video, UltimateReloader’s Gavin Gear tests the classic belted 7mm Remington Magnum vs. the relatively new 7mm PRC. Testing is done with two hunting-type rifles shot from bipod. Gavin notes that both cartridges shoot very well, with impressive down-range energy. But he concludes that the non-belted 7mm PRC does have some advantages.

7mm RSAUM PRC Remington Magnum RemMag Winchester Short Magnum WSM 7mm-08 Sako S20

7mm Remington Magnum SAKO S20

This rifle review video features real world testing of a SAKO S20 hunting rig chambered for the 7mm Remington Magnum cartridge. The SAKO S20 is offered with multiple stock types. Here the thumbhole Hunter version with slim fore-end is featured. The testers observe that the 7mm Rem Mag factory ammo shoots very well, making the cartridge a good choice for large game.

Most Popular 7mm Cartridges

This Ron Spomer Outdoors video covers a variety of the most popular 7mm cartridges. The video covers 7mm cartridge history, ballistics, and recommendations for hunting use. Starting at the 6:45 time-mark there is a detailed ballistics comparison of the Hornady 175gr ELD-X (Extremely Low Drag eXpanding) bullet in three different chamberings: 7×57 Mauser, 7mm-08 Rem, and 7mm Remington Magnum.

7mm SAUM vs. 7mm WSM

This 17-minute video compares two modern 7mm short magnum cartridges — the 7mm SAUM (Short Action Ultra Magnum) and the 7mm WSM (Winchester Short Magnum). Both these cartridges have been adapted for F-Class Open Division use over the years. In this video, factory ammo for both cartridge types was tested with a modern chassis rifle shot prone with bipod.

7mm-08 Remington

7mm-08 remington deer hunting cartridgeThe 7mm-08 Rem is a popular cartridge derived from the .308 Winchester necked down to 7mm. In 1980, Remington Arms popularized the cartridge by applying its own name and offering it as a chambering for their Model 788 and Model 700 rifles. Of cartridges derived from the original .308 Win, the 7mm-08 is the second most popular after the .243 Winchester.

Other than neck diameter, the 7mm-08 is virtually the same dimensionally as the .308 Win. But when you compare heavy bullets, grain for grain, the 7mm-08 offers better ballistics. Thus a 168-grainer fired from a 7mm-08 has less drop and less windage than a 168gr bullet fired from a .308 Win. The 7mm-08 enjoys most of the advantages of the .308 (inherent accuracy, long barrel life, great terminal performance) while offering better ballistics grain for grain. These qualities make the 7mm-08 a very popular deer-hunting round.

7mm Multi-Cartridge Comparison

Do you want a 7mm rifle, but haven’t chosen a cartridge yet? This lengthy 30-minute Ron Spomer video looks at a host of 7mm cartridge types. There is special emphasis with comparison data for the 7mm-08, 7mm Rem Magnum, and 28 Nosler (see 19:40 time-mark). Ron explains how to efficiently zero a rifle with these 7mm cartridges and how hunters can evaluate Maximum Point Blank Range (MPBR).

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July 7th, 2019

Sunday GunDay — 7mm WSM Hunter with Match-Grade Accuracy

wyoming 7mm wsm winchester short magnum elk rifle hunter hunting Win mag

Ric Horst’s 7 WSM is a game-slayer with serious long-range accuracy. Here’s a hunting rifle (with tactical trappings) that performs as well as some purpose-built benchrest rifles, delivering half-MOA ten-shot groups at 1000 yards–from bipod no less! That was noteworthy in itself. But Ric’s rifle, built to take game in Wyoming’s backcountry, also proves the viability of the 7mm Win Short Mag as a true precision cartridge. With the capacity to drive hard-hitting, ultra-high-BC bullets, the 7 WSM is a bonafied rival to the big 30s. This rifle sets a very high bar for long-range hunting rigs.

The Challenge: Creating the Ultimate Long-Range Hunting Rifle

Q: Tell us how you got interested in the 7 WSM and how you got started on this project?

Ric Horst: Chris Matthews and I were invited to help out with a new hunting show on a cable network. We wanted to showcase a rifle that wasn’t typical for the TV program which was about Antelope and Mule Deer hunting in Wyoming. We considered a variety of calibers, but then Sierra announced their new 175gr (.284) MatchKing and that got our attention. In Wyoming, the key thing in choosing a caliber is the availability of good high-BC bullets–the wind will own you out here. After seeing Sierra’s projected BC for the 175s this seemed to be a no brainer. So I told Chris to make the rifle a 7mm WSM.

Q: What were your objectives with this project rifle? Sounds like you wanted to build a state of the art long-range hunting rig?

Our goals were simple–we wanted a tack-driver with long-range capabilities, from 400 to 1000 yards. Really, at the time, the choice of the 7 WSM was easy–no one else was really doing it, and if they were, they weren’t talking about it. So we wanted to be the first make it work, one way or another. There were actually no real surprises or problems along the way, other than it was the first time I was shooting a 7mm and the accuracy of the 175gr bullets was better than I expected. I have total faith in Chris’s gunsmithing abilities. This 7 WSM is the sixth rifle he’s built for me–and they’ve all been tack-drivers.

Q: Give us your perspectives on living and shooting in Wyoming. What makes it such a great hunting ground? How do the game mix and terrain dictate your selection of a rifle?

My requirements for my rifles are, I guess, unique. I like tactical-style rifles. This “style” seems to fit my type of hunting here in Wyoming–tough, rugged terrain where you need to be able to make the long shot should one present itself. Living in Wyoming? Well, if you choose to live in the “out of town” places you need to be well-prepared and tough. Going to town means a 50-mile trip. You don’t just run to the convenience store if you need something. Plus the weather is hard in the winter and always windy. We joke that we have just two seasons, three months of summer and nine months of winter. Our spring and fall are each about two weeks long.

Despite the weather, Wyoming is a great place for a hunter. Game here is second to none: deer (whitetail and mulies ), antelope, elk, sheep, moose, plus varmints galore. What is great about my location is that I can shoot just about anytime I want. I have the ability to shoot as far as 3500 yards out my back door if I choose. Here’s a shot of my playground.

Putting It Together: Exceptional Components and Accurate Ammo

Q: Your 7 WSM has logged 10-shot groups at 1000 yards that could win many 1K benchrest matches. What kind of components does it take to deliver this kind of accuracy?

There is nothing super-exotic in this rifle, but it IS fitted out with some of the best components on the market. We did start with a factory action, however, a Remington 700 short action. Chris trued the action, added an SSG over-sized bolt knob, and fitted the action with a Broughton 5C, 9-twist #7 contour barrel finished at 24″. To reduce recoil we added a Badger brake. The stock is a fiberglass McMillan HTG (General Purpose Hunting) stock in Desert Camo. (This McMillan stock design replicates the original M40A1 Marine Sniper Rifle stock.) Since this is a repeater we added a Wyatts Mag Box. The gun features Badger bottom metal, Badger scope rail and Badger Rings. The Scope is a 4-16 Nikon Tactical, which, so far, has proven to be excellent. All the metal is Teflon-coated in Mil-Spec OD Green. I have a bubble-level mounted on the scope rail.

Q: To achieve the results you’re getting you must have exceptional hand-loads. What is your reloading procedure and do you have any “secret tips” to share?

I use Winchester-brand brass and Winchester Large Rifle Magnum primers. My current load is 64.0 grains of H4831sc for the Hornady 162s (2950 fps) and 61.0 grains of H4831sc for the Sierra 175s (2830 fps).

The only sizing dies I have used are the Basic Redding FL dies–I have since started using the Forester Ultra-Seater and used it when I shot the outstanding groups. My reloading technique is pretty basic. I full-length size and trim all to length. I use the RCBS powered Trim Mate™ station to do most of the brass prep. I do use the VLD case mouth deburrer. I uniform the primer pocket and chamfer as well. I then fire-form those prepped cases. I’ve noted that the new brass usually shoots just as well as fire-formed cases. I then use the FL die to bump the shoulder back .002″. I haven’t really noticed and major difference between Forester and Redding dies except price. I don’t have any “special” secret loading techniques. If you use quality components, I’ve found that you don’t need to weigh this weigh that etc. I tried that for years and it never really showed results to justify the time and effort. I quit doing all the weighing ( except for bullets ) and I shoot just as well. The two things I am anal about are the powder charge and seating depth–these all have to be exactly the same for each round!

I do take time to uniform the brass. First, when I get a bag of brass, I’ll check to make sure all the flash holes are centered, and I’ll pitch the ones that aren’t. Then I’ll measure the shortest case and trim all to that length (after ensuring that fits my chamber). Next, I’ll uniform the primer pockets, and debur and bevel the flash hole on both sides. Beveling both sides is one trick I think helps keep ES down. By beveling the flash side it basically takes the flash and tapers/funnels it to the hole. I think you get more consitency with the primer flash this way. Finally I’ll debur/champfer the inside and outside of the neck using a VLD chamferer.

After firing the cases once, I clean them all up and make one pass on the neck turner just to “clean” the necks to a consistient diameter. Note, I am not necessarily turning for a specific diameter because I have enough clearance to start with. I do this light turn just for consistency. Sometimes the neck turner might only shave a bit off one side.

Q: What’s your load-testing procedure? Do you have any special methods to evaluate/tune your loads?

Again, my methods are pretty simple. I start with the Sierra Load Manual, select the bullet weight, then find the max load for a recommended accurate powder. I like Hodgdon powders, so I start with an “H” powder with an appropriate burn rate, drop the “max” load about 0.5 grains and start there. Typically there is a sweet spot within half a grain up or down from that starting point. I usually seat my bullets to touch the lands or seat just in a bit. I feel this makes up for any bullet-run out when seating them.

When load-testing, I try to get 100-yard groups to be half an inch or less (quarter-MOA is pretty good for me, but not something I can count on regularly.) I then go to the 300- and 500-yard steel plates to see if the load holds its accuracy. If it does, then the load is good to go. However, I will shoot a 5-shot group every now and again to see if I am still in tune. In fact I was re-testing the 162gr A-Max and 175 gr SMK loads the day I shot the screamers at 1013 yards. Two great groups back to back.

Q: How does your 7 WSM perform in terms of recoil and accuracy? Has it met your expectations?

This rifle is by far one of the most fun rifles I have ever had. The recoil is very minimal with either of the loads and the rifle just plain flat-out shoots. The break-in took all of 21 rounds I think. This rifle shoots sub-2″ groups at 500 yards all day every day (often closer to 1″). Note that I don’t do any shooting from a bench and rests except for the initial load work up. The rest of the time I shoot from a bipod. I would really like to stress that I shoot exclusively with bi-pod and “sand-sock”. So many guys out there think that you have to shoot from a bench to get outstanding results. This simply isn’t true. If you are a disciplined shooter and have correct shooting techniques you can do amazing things from any shooting position. Long Range doesn’t have to be from a rest or bench!

What makes this rifle special is that it has an identical twin, built by Chris for my hunting partner Steve. Both rifles shoot exactly the same–same accuracy, same velocity, same trajectories. I never shot a 1K group with Steve’s gun, but at other distances, including 500 yards, it has performed identically to mine. I shot a sub-moa group of 12 shots one day with the Twins. I shot six shots from each rifle, alternating rifles between shots. Remember this is from the prone position and off a bipod–same load, two different rifles–and it produced a single, sub-MOA group. Now that’s consistency. Both these rifles I call point and shoot rifles–point them on target and they’ll shoot it.

Q: What technique do you use when shooting from bipod?

I basically do Froggy’s technique when shooting from a bipod. I get my natural point of aim, then push forward a bit to pre-load the bipod legs. In gripping the stock, I use just my two middle fingers to apply firm pressure straight back into my shoulder. I’m careful not to torque with the thumb or pinky finger. With my focus on the intended point of aim, I’ll let the cross hairs blur a bit and gently press the trigger until it goes boom. Then follow through, watch for the impact, and chamber the next round.

Looking Out to 1000 Yards, and the Results from Ric’s 7 WSM

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August 29th, 2015

Game-Changer: Berger 7mm 195gr Bullet with 0.755 G1 BC

Berger 195 grain 195gr Elite Hunter .755 BC G1 G7 F-class

You’ve heard the rumors of a new ultra-high BC 7mm bullet from Berger. Well the rumors are true. Berger is now shipping test samples of its new 195-grain 7mm Elite Hunter Bullet, part # 28550. This bullet boasts jaw-droping 0.755 G1 and 0.387 G7 Ballistic Coefficients. Those are stunningly high numbers. Compare that to 0.674 G1 and 0.345 G7 BCs for the previous BC king amoung 7mm projectiles, Berger’s own 180 gr Match Hybrid Target.

We’re certain the “orange box” 195gr Elite Hunter will soon see use by F-Open competitors. This ultra-high BC projectile could be a “game-changer” in long-range shooting when used in cartridges such as the 7mm RSAUM, 7mm WSM and even bigger 7mm magnums. Recommended barrel twist rate is 1:8.3″, with a stated “minimum” twist of 1:9″.

We ran some numbers through the JBM Ballistics program*, comparing the new 195-grainer with Berger’s popular 180gr Hybrid. The results were eye-opening. The projected drop is significantly less. Most importantly, this new 195gr bullet moves a LOT less in the wind at 1000 yards. This should translate into higher scores for F-Class shooters — that wide ‘9’ shot may stay in the ’10’ ring. In fact, based on the JBM trajectory calculation, with a 10 mph 90° crosswind, the 195gr bullet will have over SEVEN INCHES less wind drift at 1000 yards than the 180-grainer (46.0″ vs. 53.1″). That’s a big deal, a very big deal…

Comparative Ballistics 195gr vs. 180gr Berger 7mm Bullets (10 mph 90° Crosswind)
Berger 7mm 195gr Elite Hunter 2950 fps Berger 7mm 180gr Hybrid Target 2950 fps
Drop at 800 yards: 135.5″
Windage at 800 yards: 28.0″
Drop at 800 yards: 140.9″
Windage at 800 yards: 32.2″
Drop at 1000 yards: 237.9″
Windage at 1000 yards: 46.0″
Drop at 1000 yards: 250.0″
Windage at 1000 yards: 53.1″
Drop at 1200 yards: 380.1″
Windage at 1200 yards: 69.6″
Drop at 1200 yards: 404.2″
Windage at 1200 yards: 81.2″

* Variables were set to 55.4° F, 1000′ elevation, standard Atmosphere at Altitude, 2950 fps muzzle velocity. You can use JBM Ballistics to compare at different MVs.

Berger 195 grain 195gr Elite Hunter .755 BC G1 G7 F-class

UPDATE from Berger

After we broke this story, Berger Bullets wanted to clarify some points. Berger explained:

“This bullet is in the testing phase and has not been officially launched. We sent this bullet out for some public testing to make sure that we had positive feedback before we moved forward with an official launch.

We want to see how it performs in multiple rifles and different chamberings.

This bullet was made for hunting purposes, we realize there are shooters who would like to take these out for target shooting, like F-Class. However, we are not certain how they will perform. If things are successful we would like to eventually launch a target version.”

The information on the label you have pictured on your article has been updated.

Twist Rates
Minimum: 1:9″
Optimum: 1:8.3″

Ballistic Coefficients
G7 BC: .387
G1 BC: .754

How to Get Berger’s 195gr Elite Hunter Bullets
These bullets are so new you won’t find them on the Berger Bullets website yet. As Berger explained above, these bullets are still in a final testing phase. Most of the early production runs have been sent out for testing purposes. If you have specific questions, you can send an email to Berger via this CONTACT PAGE. Otherwise you can phone Berger, Mon-Fri, at 714-441-7200. Please try the email option first.

The Extreme Store is listing the Berger 195gr 7mm Elite Hunter Bullet at $62.00 per 100 bullets, not including shipping.

Bullet boxes photo courtesy Ryan Pierce, PiercisionRifles.com
Permalink Bullets, Brass, Ammo, New Product 23 Comments »
July 5th, 2011

New SEB MAX Rest Handles 8″-Wide Forearms — Size Matters

A SEB MAX front rest, with the ability to handle wider rifles, was unveiled today by Forum member Ernie Bishop (aka xphunter). This is a prototype, and production versions will hopefully be offered in 2012. Weighing roughly 35 lbs. (16 kg), The new SEB MAX rest fits forearms up to 8″ wide. Without side plate assembly and special front bag, the SEB MAX can accept a 9″-wide stock. The Center-to-Center distance between the posts is 300mm (just a bit less than 12″). This makes the SEB MAX 100 mm wider than the SEB NEO, allowing for 275mm clearance between posts. The bottom plate of the top is 265 mm long (almost 10 1/2″). The side plates assembly with side bag is about 1.25″ thick. Net space is approx 8″ . Posts and height are the same as the SEB NEO, which already has a huge amount of elevation travel. For more info, visit www.SEBCoax.com, email Ernie Bishop at ernieemily[at]yahoo.com or call Ernie at (307) 257-7431. Ernie is the U.S.A. distributor for SEB products.

SEB NEO MAX benchrest

Ernie Bishop reports: “The new SB MAX is very smooth! I have used it out to 1000 yards so far and am very pleased. I do not know the price yet.” For more information, read this FORUM thread. As set up in the photos below, the SEB MAX is set for the 6″ forearm on Ernie’s 7mm WSM specialty benchrest pistol.

SEB NEO MAX benchrest

SEB NEO MAX benchrest

If you’re curious about Ernie’s 7mm WSM handgun, here are the details. Eric Wallace smithed this specialty handgun, as well as the stock. It is a 7mm WSM built on a BAT action fitted with 1:8″ test Bartlein barrel, with Wallace muzzle brake. The rig uses a Sightron S-III, 8-32 scope, and Jewel trigger. The gun was set up to shoot in the Heavy Pistol Class at the annual Long-range Handgun shoot run by the MOA Corporation. Ernie Bishop tells us: “When I have the time, it will also be used for light gun rifle matches at 600 and 1000 yards. I also have a McRee handgun chassis stock so I can use it for more huntng or field shooting.” Ernie does not have the load “fully tweaked yet”, but he’s currently running H1000 behind 180gr JLKs in prepped Winchester 7mm WSM brass, with Federal 210M primers.

SEB NEO MAX benchrest

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