The Model 71 Winchester and the .348 WCF Cartridge

Jim Taylor
[subject]
Monday, March 21, 2022, 07:19 (1598 days ago)

(I originally wrote this about 20 or 25 years ago. It contains dated information)

The Model 71 Winchester was the culmination of the large-frame leverguns produced by the famed old company. Introduced in 1936 it was an upgrade of the famous Model 1886. Designed to make manufacturing a bit easier with improvements to handle the new cartridge that was introduced with it, this was the last of the big-frame leverguns made by Winchester.

The Model 1886 was designed during the black powder era for large black powder cartridges. Chambered for a variety of calibers including the .45-70, the Model 1886, was adapted to a new smokeless powder medium bore cartridge called the .33 WCF in 1902. The .33 Winchester was intended for hunting large North American game and used .338" diameter bullets, the same size used in today's .338 Magnums. However, by the 1930's the .33 WCF was looking a bit underpowered. That and the increased costs for the production of the 1886 (along with the slowdown of the economy) had Winchester looking around at ways to cut costs in the production of the big leveraction.

THE RIFLE

A redesign of many of the internal parts along with the introduction of a new caliber was Winchester's plan to get the costs down and to market the package. The redesigned '86 was renamed the Model 71 and the rest, as they say, is history. The rifle was produced in only one caliber .. the .348 WCF .. and it is the only factory rifle ever chambered for this round.

It was introduced in two different models, the Standard and the Deluxe versions and was produced in 2 barrel lengths, 20" and 24" (carbine & rifle). Both models used a pistol-grip stock. The Deluxe version had checkering on the forend and stock, along with snap-on sling swivels, pistol-grip cap and a really cool bolt mounted aperture sight.

[image]

[image]

By the mid-1950's with costs again rising, the Model 71 was discontinued. The rifle was pretty expensive to produce. Too expensive to build and still make a profit. In 1956 Winchester stopped it's production and the last big levergun was no more. About 47,000 of the Model 71's were made during it's 20 year history.

In 1987 Browning produced a modern version of the Model 71 that was made in Japan. These have different thread sizes in places, most notably the barrels, and many parts will not interchange with the originals. The Browning version was a limited production model only.

THE CARTRIDGE

[image]
.30-30 and the .348

The 348 was based on the old .50-110 WCF cartridge and is the largest-sized rim diameter used in factory leverguns. Original loadings for the .348 were in 2 different bullet weights: 150 gr. and 200 grain jacketed. (The 250 gr. loading was added later on.) The velocity's listed originally for the 150 gr. and 200 gr. loads were 2920 fps and 2535 fps. These were later reduced to 2890 for the 150 gr. and 2530 for the 200 grain loads. The 250 gr. loading which was introduced some time after the 150 gr. and 200gr. loads was rated at 2350 fps.

[image]
Left to Right - old Winchester 200 gr./ Hornady 200 gr./ Barnes 250 gr./ Alaskan Bullet Works 250 gr. / 250 gr. cast gascheck (I had a few of the original 150 bullets but never got a photo)

Handloaders do not have a large selection of bullets to choose from. Hornady makes a 200 gr. JSP bullet. Barnes produces a 220 gr. and a 250 gr. bullet. Alaska Bullet Works makes a 250 gr. bullet also. Limited testing that I have done shows this to be a tough bullet that should work well on large and/or dangerous game.

There are several bullet molds available for the .348" diameter projectile. I don't know of too many people who use this caliber, let alone cast bullets for it. I have used the gun for some years and even though I have a bullet mold and dies, I have yet to run cast bullets in the gun. As little as I use it I prefer my own handloads with jacketed ammo. Most of the game I have taken with it have been with original Winchester 200 gr. Silvertips. I know that on large Mule Deer the Winchester loading worked just fine.

LOADS

[image]
[image]

BALLISTICS

[image]

Ballistically .. at least on paper .. the .348 Winchester falls somewhere between the .350 Remington Magnum and the .358 Winchester I say "on paper" since in real life the paper figures do not always turn out to be totally true. For all practical purposes the .358 gives identical performance as the .348 Winchester.

With a 200 yard zero you can basically hold "on" to 250 yards. That is further than I would take a shot at game animals, using the iron sights. To be fair the to animal I would stalk closer.

I have used the .348 and the Model 71 Winchester to make good hits on targets to 800 yards. While the paper ballistics would have you to believe that the trajectory would make it impossible to do, in actual practice the gun and ammo work pretty well for long-range rock busting.

I used handloads with the 250 gr. Barnes Original bullet and found them to work very well at extreme distances. One June I was in Cody, WY with The Shootists, shooting targets from 300 to 800 yards using the above loads. Dick Casull was watching me and I asked him if he wanted to take a shot. He took my rifle, asked where I was holding on the 800 yard target, and proceeded, offhand, to hit the target! He handed the rifle back to me and said quietly, "There are no flies on that one."

HUNTING

I have not hunted with the Model 71 all that much. I have shot some coyotes and deer with it. I used it in Arizona while hunting horseback and shot Mule Deer and Coues Deer with it. In Missouri I have used it to hunt and take Whitetail Deer. I found the Hornady 200 gr. bullets too tough to expand well on the smallish Whitetails in S/W Missouri. The Winchester Silvertip bullet is much better on deer. The Hornady and Barnes bullets are better suited for larger game.... I would say, Elk and larger/heavier animals. I haven't tried the Alaska Bullet Works bullets on game but from limited testing I would say they fall into the same category as the Barnes bullets, great for Big Game.

HOT-RODDING IT

The Model 71 has been used as a basis for caliber conversions over quite a few years now. P.O. Ackley's .348 Improved was made by blowing the case out straight to get rid of the tapered body. Combined with Ackley's sharp shoulder, case life was dramatically improved over the factory cartridge and ballistics were increased. Standard loads in the Improved case gave up to 500 fps increase over the unmodified cartridge with some loads.

Bob Hutton (who was at Guns & Ammo at the time) developed a series of wildcat cartridges based on the Ackley Improved .348. There was a .30 caliber design called the .30-348, the case being necked to .30 caliber. There was also a .35-348 (which proved to be the most efficient of all the conversions), a .40-348, and a .450-348. The .450-348 proved a very powerful cartridge, running a 350 gr. bullet at nearly 2500 fps and 400 gr. bullet at 2300 fps... very close to .458 Winchester Magnum ballistics from a levergun. It was noted for tearing the magazine tube off the rifle during recoil unless a special fixture was attached to hold the magazine in place.

The .450 Alaskan was developed around the same time. The only difference between it and the .450-348 was the latter is the straight-walled Ackley design while the .450 Alaskan has about a .020" body taper. It is noticeably smaller at the shoulder than the Ackley cartridge. The .450 Alaskan has slightly reduced ballistics when compared to the Ackley design, but because of the slight taper the cartridge feeds better in the levergun.

Today the .50 Alaskan is a very popular conversion of the .348 Winchester cartridge. Blown out to a straight case, the big gun hits hard on both ends

FINI

For my use the big levergun is fine just as it came from the factory. It has all the power I will need for what I use it for. I would have no hesitation using it for most any of the large North American game animals. While it never caught on with the public like the .30 or .35 calibers - most likely due at least in part to it's odd caliber - the .348 is a very good one for those who like to play with cartridges that are a bit different.

The rifle that was built for it - the Model 71 Winchester - remains an excellent example of what was being produced by gun companies during the days when craftsmanship was put into the "assembly line" firearms

Bettter photo of rifle and the rear sight

Jim Taylor
[subject]
Monday, March 21, 2022, 07:31 (1598 days ago) @ Jim Taylor

That's a pretty gun! Prices have skyrocketed

WB
[subject]
Monday, March 21, 2022, 08:03 (1598 days ago) @ Jim Taylor

most are north of $2500 now. I know a guy who used one for Elk. He made a horrific mistake of leaving it atop his car and driving off. At about 50 mph he looked up to see it slide off and bounce down the asphalt. It did not break anything but skinned it up badly. He is still sick about it decades later! LOL It hurt me just to hear!!!

That sight looks cool. Skinner has some good stuff that looks kind of like that. Does the knurled big knob remove the sight or adjust elevation?

Adjustment if I remember right- never tried to remove it.

Jim Taylor
[subject]
Monday, March 21, 2022, 08:19 (1598 days ago) @ WB

- No text -

I've done it on other calibers but in a pinch,

WB
[subject]
Monday, March 21, 2022, 07:58 (1598 days ago) @ Jim Taylor

since that is such an odd diameter, I wonder if you could "size down" a .358 jacketed round to .348". I've gone 0.010" from a 0.410 to a 0.401, which is about as far as I want to go. Just make sure you have a lead core and use a little lube. You can't do such things on a flimsy press but it can be accomplished.

It would be useful to make bullets if you could not find any. I noted it makes the projectile a little longer. But I have not noted any loosening of the core from jackets. They seem to work fine. Just try to find a Serria JHC for your .38-40! With some ingenuity you can fabricate a supply! Ditto for making heavy .452" from .458's. I made some 300 gr. for the .450 Bushmaster.

Years back I did that but ...

Jim Taylor
[subject]
Monday, March 21, 2022, 08:16 (1598 days ago) @ WB

the cores sized down and the jackets had some spring-back so the cores were loose. Then it was not hard to get the 200 gr. and 250 gr. bullets and I used those.

REMEMBERING ROBERT

JT
[subject]
Monday, March 21, 2022, 09:25 (1598 days ago) @ Jim Taylor

- No text -

Amen!

Jim Taylor
[subject]
Monday, March 21, 2022, 09:50 (1598 days ago) @ JT

- No text -

one of my more popular cartridges based on the 50

Gary Reeder
[subject]
Monday, March 21, 2022, 12:47 (1598 days ago) @ Jim Taylor

Alaskan is our 476 GNR, which is the 50 Alaskan necked down to 475. A lot of power for those that can handle recoil. Blake Naugle used an encore chambered in our 476 GNR on his lion hunt back in September.
[image]
[image]

Nice!

Jim Taylor
[subject]
Monday, March 21, 2022, 13:38 (1598 days ago) @ Gary Reeder

- No text -

my 416 GNR and 450 GNR have both taken

Gary Reeder
[subject]
Monday, March 21, 2022, 14:33 (1598 days ago) @ Jim Taylor

elephant in handguns. Both are based on the 348 case or 50 Alaskan case. The 450 GNR with a 500 grain Hornady Dangerous Game Bullet doing almost 2000 fps has done very well for me taking a large Cape Buffalo and several like sized animals in Africa.
[image]
We had 2 versions of the 450 GNR. The first with a .200 length neck. That worked fine using older 348 Win. brass that I found here and there. Then a year or two later using newer more current brass when fire forming the case to .458 the neck disappeared totally. I sent several cases, sized and unsized along with a Contender to Dave Manson, my reamer maker. He loaded the cases and shot them and they did the same thing, the neck disappeared. Manson didn't have an answer for me why it did that, shrinking almost .200. He said Winchester must have changed the metallurgy of the case. I talked to the tech at Winchester and he said the current brass was different from the older brass which I had used, but he didn't give me any solutions other than changing the design. We did that giving us a bit longer neck and with the new brass the shrinkage was almost nil. With today's newer brass we have had no problems at all.
I used the 450 GNR in 1993 in a Contender using the Hornady 500 grain solid at almost 1800 fps in the 348 case necked up and blown out straight, then necked to .458.
[image]
[image]
[image]
The 450 GNR in the Contender was rough on scopes. In one afternoon I blew up 2 scopes on the 450 GNR getting ready for Africa. I made it a habit to take several extra scopes with me when using the 416 GNR or 450 GNR.

Bill Firman took a large (they are all large to me) elephant with the 416 GNR in a handgun. He used, I think, a 400 grain solid in a custom Encore.

The 348 case is a great case for the larger handgun calibers. The 50 Alaskan is even better as there is no necking up and then necking down 2 or 3 times and then fire forming to size. With the 50 Alaskan you simply neck the straight case down to the proper caliber.

I blew up 3 scope’s working up my load for African lion

Blake
[subject]
Monday, March 21, 2022, 15:23 (1598 days ago) @ Gary Reeder

With the 476GNR. A Burris, Leupold, and a Bushnell. Each lasted 1 to 3 shots once I got the 500gr Hornady DGX over 1900 fps. I but on a new 2 power Burris and it did great. It road out about 100 full power loads before the trip, and is still holding zero. The other 3 where variable if that makes any difference. The calculated recoil was 86 ft.lbf

I have the .416, .440, .450, and .476 GNR Encore handguns

WB
[subject]
Tuesday, March 22, 2022, 06:36 (1597 days ago) @ Blake

I always intended to get a .50 AK barrel to shoot all straight walled .510 cal. rounds from .50 Special to .50AK but have never gotten around to it. While I DO have a .500 Nitro Encore rifle barrel I still need to work on.

I too was lured into the maximum power exploring. (Blake's case was certainly warranted) And I found I didn't need to run 105% to get great performance. With the .416 GNR I backed down to 1850 fps with the 400 gr. and found not only did my equipment last longer but I did too! So 85% loads were so much more pleasant to shoot and did not require unique holds or recoil considerations to shoot. I performed better and the bullets still would sail clean through anything I could think of shooting.

Also the wear on locking bolt springs was greatly reduced. At max power the bolts and springs also need to be checked.

The Simmons 4x or any fixed power scope for that matter seemed to actually hold up and was a good performing glass. I use them for all load development and then swap over to a premium "fixed" power glass for hunting situations. My main consideration is the extra clarity the optics afford, I can really use that under pressure. The .378 GNR is the largest rig I feel good about placing a variable on for extended shooting.

I've learned not to make things harder on myself than necessary. Also with a fixed power scope I'm simply dealing with it and not thinking or fiddling with a power setting. It just makes life easier for me.

Interesting article.

Alan Horstman
[subject]
Monday, March 21, 2022, 14:09 (1598 days ago) @ Jim Taylor

Thanks for posting. My son was given his great grandfather's Winchester model 71 when he recently passed. We haven't shot it yet but I intend on him taking it to moose camp in the near future.

A great cartridge and rifle.

bigboar
[subject]
Tuesday, March 22, 2022, 06:56 (1597 days ago) @ Jim Taylor

- No text -

my one favorite cartridge is the .358 and I know am

Lynn
[subject]
Tuesday, March 22, 2022, 07:02 (1597 days ago) @ Jim Taylor

using PC'd cast 215 gr bullets. Good read

All rounds on the .308 case make fine

WB
[subject]
Tuesday, March 22, 2022, 07:48 (1597 days ago) @ Lynn

handgun rounds too. I remember someone using a .243 Encore but would not think much of it myself. The 7mm-08 is stellar! And so is the .358 Win. I have a "rimmed" version or .356 Win. type of Contender barrel a friend hooked me up with. I mostly make brass from .444 Marlin but with an extractor change I could also shoot .358 brass (at slightly lower pressures). It will actually take FL .444 brass run through a .358 sizer. It shoots great!

powered by my little forum