375-338 Chatfield-Taylor

[bigstevo]

My uncle left me a Mauser Custom 375 Chatfield-Taylor. The only markings on the rifle say 375-338. There are no other markings anywhere on this rifle. No serial number nothing. His printed record is where it says it's a Taylor. But I have nothing other than that printed record. Would there be a serial number under the stock?

 

[Guy Miner]

What a beautiful rifle!

I have no experience with the cartridge, have just read about it over the years. I believe it's merely the 338 Win Mag necked up to 375, but I could be wrong. There is handloading data available for it. It doesn't give up much to the 375 H&H in power. Should be easy to come up with mild loads for plinking, target shooting, and deer sized animals as well as loads for big, sturdy game...

You could have a gunsmith check the chamber for you and determine the exact dimensions, to verify that it's chambered for 338 necked up to 375.

There might be a serial number visible if you remove the stock - which is easy to do. Very interested in how this all shakes out. Cool old rifle, and I'd think well worthwhile to investigating.

And welcome to the Nosler forum!

Regards, Guy

 

[Guy Miner]

Perhaps of interest:

375-338 WINCHESTER MAGNUM - Cartridge Collector

The specimen above was made in South Africa by OPM. It has a shorter neck than the Quality Cartridge version Also known as the 375/338 Chatfield-Taylor or the 375/338 Belted Newton. It was developed by RF Chatfield-Taylor of .416 Taylor fame, another great wildcat calibre. This wildcatting thing...

cartridgecollector.net

 

[filmjunkie4ever]

As Guy already said, welcome to the forum AND what a beautiful rifle!! Someone put a lot of quality time and effort into its construction!

 

[PJGunner]

I have one and used the 4350 data from P.O. Ackley's book. Rifle is a tang safety Ruger M77 with 22" barrel. It's in a Ramline stock at present and total weight loaded with scope and sling is bout 7.5 pounds. I've named it, "The Hammer" because it hits like a hammer at both ends.
Paul B.

 

[JD338]

Gorgeous rifle and rich with history. Keep us posted with what you find out.
Welcome to the forum.

JD338

 

[bigstevo]

I have one and used the 4350 data from P.O. Ackley's book. Rifle is a tang safety Ruger M77 with 22" barrel. It's in a Ramline stock at present and total weight loaded with scope and sling is bout 7.5 pounds. I've named it, "The Hammer" because it hits like a hammer at both ends.
Paul B.

Would you be willing to send an already sized bullet case to me so we can measure it? So far my search for reloading dies has come up empty handed.

 

[PJGunner]

Would you be willing to send an already sized bullet case to me so we can measure it? So far my search for reloading dies has come up empty handed.

My dies are RCBS and are marked .375x338. IIRC. I'll have to get out to the shed to confirm though. I'll have to look and see if I have a once fired case or does it make any difference.
Paul B.

 

[preacher]

I bet its a thumper! 250 Sierra and you are rolling elk over!

 

[bigstevo]

My dies are RCBS and are marked .375x338. IIRC. I'll have to get out to the shed to confirm though. I'll have to look and see if I have a once fired case or does it make any difference.
Paul B.

Once fired or even a complete shell that could be deconstructed. I just need one. If it's an exact fit REDDING said they could make the die set from one. Otherwise I. Going to have the cast the chamber and go that route.

 

[Joec7651]

I have one and used the 4350 data from P.O. Ackley's book. Rifle is a tang safety Ruger M77 with 22" barrel. It's in a Ramline stock at present and total weight loaded with scope and sling is bout 7.5 pounds. I've named it, "The Hammer" because it hits like a hammer at both ends.
Paul B.

I swear the hardest recoiling firearm I’ve ever shot was my Remington 870 with a 20” rifled slug barrel. I still have and use it with the field barrel………….the issue was the load. That’s before it was scoped and I used it for deer before my 45-70 in Ohio.
It was years ago and was shooting 3” Brenneke 1 1/2 oz slugs at 1600ish fps. I think I still have 3 boxes the slugs. I stopped shooting them because I was actually scared they were going to break the stock. Hardest kicking rounds I’ve fired ever fired from a bench. Worse than a 375 H&H. By a lot. lol

Edit: I’m sorry, welcome to our forum. Great to have you.

 

[jimbires]

is this it ? I've used these guys ,for forming dies . their dies seem to do what they need to do . I have no complaints .

Caliber List

Caliber list

www.chtoolanddie.com

 

[Johnly]

C&H make excellent dies at a fair price, but unless they have a set on hand it might be some time before they can ship.

 

[bigstevo]

My uncle left me a Mauser Custom 375 Chatfield-Taylor. The only markings on the rifle say 375-338. There are no other markings anywhere on this rifle. No serial number nothing. His printed record is where it says it's a Taylor. But I have nothing other than that printed record. Would there be a serial number under the stock?

After 6 months of research this rifle has quite the history. It was made at Pachmayr gun works in Los Angeles in the early 70s by none other than Frank Pachmayr. Absolutely incredible history.