.425 Express?

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Hi and welcome MooseHunter! Quite the coincidence, read this thread yesterday. Someone at our club shoot in RSA, built himself a "425 Safari Express". It is a 458 Express case (3 inch 375H&H lengthened case), which is shortened and necked to 423. The gents current data is a 400gr bullet at 2270 fps. Sounds like a 425 Express, just with word safari in it though..
 
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I read the same thing. However MANY 404j rlfles were built on standard M98 actions, so the actual gain here is unclear. At least two of my loads tested during development were in excess of 2400 fps with 400 grain swift AFs - 80 grains of N-150 (2411 fps) and 83.5 grains of IMR4350 (2401 fps). I backed off to about 2250 fps... seemed like a good load - accurate and modest recoil. I have no pressure testing equipment so I cannot even speculate on that, but the 404 is a larger volume hull, intended to keep pressures down.

Still, I celebrate people who go to some lengths to make their ideas reality... and I expect they had fun developing the .425 Express cartridge.
The actual gain is that you could get 375 and 458 brass and you could not readily get .404 brass.
 
I shoot a 10,3x68 RWS, which is .413 barrel diameter to shoot the bullets of the 10,3x60R or 450/400 2.5 inch NE.

I have two of these barrels in the r8.
 
Hello All!
I am new member here. Been reading up on the 425 Express with interest. I happened to stumble on one awhile back. In reading here, it must be one of A Square's creation. It is on a 1917 Remington action. Barrel is stamped 425 Express. A barreled action only. Barrel is 26 inches long "in the white". Never fired. It seems some people love em and some people hate em I am neither. Just a garden variety gun nut.
It's an interesting cartridge. I might have been interested if I had not already built a 404 Jeffery on 98 Mauser. It can be problematic taking ammo to Africa that's not headstamped the same as its rifle. Finding factory brass for 425 Express is apparently quite difficult. Great action to build on. Should be a fun project.
 
It's an interesting cartridge. I might have been interested if I had not already built a 404 Jeffery on 98 Mauser. It can be problematic taking ammo to Africa that's not headstamped the same as its rifle. Finding factory brass for 425 Express is apparently quite difficult. Great action to build on. Should be a fun project.

Enfield9.jpg
 
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That's a fine Buck! Where did you get him? Is that Eland or Impala?
Montana. Eland are the largest antelope. Impala are one of the smallest. The rifle is a dressed up WWII Springfield 30-06. This is a gemsbuck (oryx).
20230817_093329.jpg
 
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The barrel is simply stamped 425 Express. Looks like a professional job.
Dear Big Bore Friends,

Surfing for all interesting things about Big Game and Co. I stumbled over this thread.
This is quiet some days back but I like to contribute some more information about this great cartridge, the .425 Express Magnum.

First I like to tell You, that I've lived more than 15 years in southern africa, being very much engaged to everything concerning hunting african game. That is now more than 20 years ago.
As today there was in these days and the days before the ultimate question, which caliber is suitable, to handle next to all situations, which can occure in the african bush. The local african farmers weren't so much concerned about diameter and energy, mostly the 30-06 Springfield was used to handle all, which needed final solutions.
Sometimes on the farms, if one shot wasn't enough in the one or other case, quantity did the job at least, means fire until no life signs were shown from the target anymore.

To be fair, I have to mention that those farmers were mostly splendid shooters and the .30 caliber in their hands was a serious combination, because they knew how and where to place the shot. Oryx, Kudu, Hartebeest or even Eland was harvested with the 30-06. No problem!!
Cats or bigger needed more attention and ammo. Besides, 30-06 ammo was cheap and all time available from PMP made in RSA.

For me as an european hunter, it had to be more than just doing the trick with an ordinary 30-06, it had to be a big bore rifle with an impressive datasheet and a even so impressive cartridge.
Most used or new big bore rifles, which were available in african gun shops these days, where of two types: Totally screwed or unaffordable.
So I decided to built my own. Parts like Barrel, stock, trigger were quickly decided.
Due to the fact, that I'm a great admirer of the Mauser K98 bolt action, nothing else was even an option. The question about the caliber was a more time taking decission. First I was with the .458 Winchester Magnum. Handloaded with good 350 Grain bullets for daily business, generating next to 30-06 outside ballistics, and the 500 Grainers for closer and bigger sized game, there wasn't much empty space.
Sadly there was that rumour, that the .458 had often problems with powder clumping and due to that missfires, I discarded that idea and searched for another caliber, fitting into those affordable but also limited 98 action dimensions.
At that time I read about this .425 Express Magnum and was fired up. At once my "how-to-get-hold-of-components" mill started to spin. Due to .300 Winchester brass, which was left by lots of hunting tourists, which seemed to love the fast burner, brass wouldn't be a problem feeding the 425. In one of the older hardware stores I had found a bulk of old and dusty Woodleigh bullets 400 Grain for the .404 Jeffrey, which has the bore diameter of .423.
To my luck, that was exactly the bullet, the .425 Express was eating too. So those 300 bullets changed the owner very quickly for a special rack cleaning price and made the final configuration. So I ordered a gun smith in Capetown, who was willing to do the job to built me that gun. An old but pristine action from WW I, a Mauser K98 signed 1908, from Deutsche Waffen- und Munitionsfabriken BERLIN, made for Brasil, was transplanted smoothly as it feeded cartridges from the magazin into my project. Even so a barrel from USA and a "break-like-glas" Timney trigger.
Some month later I had my .425 Express Magnum with a fitty Safari walnut stock in my hands. RCBS had sended me allready the dies. All together for sure no bargain, but what a hell of fun. Here we go!!

Just one thing has to be said about this cartridge: Wow !!
The .425 Express Magnum fullfilled all my dreams about a bigbore rifle. Everything I shot at, didn't do anything more than collapsing in it's tracks. Buffalo, Giraffe, Hippo, Crocodile or even tiny bushbok or waterhole warthog, nothing went lost.
Reloading is easy, shooting is a pleasure, because it's no thumper and it kills like being hit with a big hammer. What a great gun, what a great cartridge.
The only thing I changed in my configuration was the use of new and branded brass.
I ordered them in big number new from a manufacturer in Germany.
In the upper thread You will find those " RO SCH .425 Expr." shells, which are out of my lot.

Now I still have quiet some brandnew .425 Express brass left, which I offer to all, who are, same as me, owner of gunnery fitted with this wonderfull cartridge.

If You need new and originally stamped brass for the .425 Express Magnum, please contact me. I'm sure, we come along concerning pricing.

Good hunting and always good wind

Roland

If anyone does have any questions regarding the 425 Express, just message me and I’ll help as much as l can…

I have a bit of load data on hand that worked well in my rifle (so that’s a start) and l can help with correctly headstamped brass.

It’s a great cartridge and if someone want to go down this route, I’ll help as much as l can.

Russ
 

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The barrel is simply stamped 425 Express. Looks like a professional job.
Looks like a fairly light profile on that barrel. When/if you stock it, I would not skimp on the wood. You'll need the weight or it will buck.
 
I am interested in making the bastardized P14 Enfield my late wife inherited into something more glamorous. I'm curious about just how much metal I'll have to remove from the rear sight ears/receiver bridge. There is an oval pocket recessed into the bridge between the ears. Is the bridge machined down to the bottom of the pocket or is the pocket filled? The bolt face on this 303 would only require very slight modification to accept 404J rim. I'm thinking it will easily accept as is any of the Winchester Short Magnum rims. During my second safari I took a couple of animals with my PH's 270 WSM. Very impressive. Both critters were in the stratosphere way beyond the reach of my 30-06. I have sourced flat bellied bottom metal and a stock to fit it. And a Timney trigger (I HATE 2-stage triggers!). Apparently it's not hard to find kits to change P14/1917 Enfields to cock on opening. Cleaning off the ears is the big concern at this point.

Open to suggestions.
 

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