375-338 vs the 375 H&H?

Johnn Peterson said:
:)You & me both. It's Why not? and the gentleman I bought the rifle from, Super Cub that are in the photo. Again, when I think of what I'd like to go for with that rifle ;)it's Bison.
Click to expand...

Excellent thread and awesome pictures from everybody.
I agree with your choice for Bison Johnn, they are on my ' bucket list ' ..
 
A friend of mine showed me his rifle in 375/338 in 1978. I liked the look of it so much, I called Hugh Henriksen as soon as I got home and ordered a reamer. I suppose I have chambered a dozen or so but never did get around to doing one for myself. I think it is a great cartridge and it fits Mausers, Rugers, and pre-64's better than does the 375 Ruger (sometimes referred to, by dreamers, mind you, as the "New King").
 
Leeper said:
A friend of mine showed me his rifle in 375/338 in 1978. I liked the look of it so much, I called Hugh Henriksen as soon as I got home and ordered a reamer. I suppose I have chambered a dozen or so but never did get around to doing one for myself. I think it is a great cartridge and it fits Mausers, Rugers, and pre-64's better than does the 375 Ruger (sometimes referred to, by dreamers, mind you, as the "New King").
Click to expand...

Oh Bill, you crack me up

Laugh2
 
Leeper said:
A friend of mine showed me his rifle in 375/338 in 1978. I liked the look of it so much, I called Hugh Henriksen as soon as I got home and ordered a reamer. I suppose I have chambered a dozen or so but never did get around to doing one for myself. I think it is a great cartridge and it fits Mausers, Rugers, and pre-64's better than does the 375 Ruger (sometimes referred to, by dreamers, mind you, as the "New King").
Click to expand...

While I have yet to use it in the field, I'm quite pleased with my acquisition of my 375CT. I do have a question and you're the man to ask. I guess it goes without saying, the cartridge case that seems to be the basis for this wildcat is the 338WM. Another possibility the 458WM, both of which have a listed maximum case length of 2.500". Another calibre that could be used as a source of cases would be the 300WM. However, the maximum case length of the 300WM is listed at 2.620". With that in mind, as a matter of curiosity of the max case length of my 375CT,;) I 'prepped' 300WM to 375CT. Gently trimming and trying the 'prepped' case in the chamber for a go no go fit, at 2.535", it would easily just chamber. As a result, and giving myself a margin of error, I thought, if & when using 300WM cases, I would use 2.530" as a maximum case length. :redface: Sorry for being so long winded, what dimension is the maximum case length on those you've chambered??
 
Johnn Peterson said:
:)You & me both. It's Why not? and the gentleman I bought the rifle from, Super Cub that are in the photo. Again, when I think of what I'd like to go for with that rifle ;)it's Bison.
Click to expand...

Unless I am mistaken, Johnn, that caribou and a moose taken previously are the only animals Paul ever used that rifle on. It needs to go on another hunt, and bison would be a good choice.

Ted
 
Why not? said:
Unless I am mistaken, Johnn, that caribou and a moose taken previously are the only animals Paul ever used that rifle on. It needs to go on another hunt, and bison would be a good choice.

Ted
Click to expand...
No big list of BG for that rifle. Two moose and one caribou. :)
 
I have had both the 375 Chatfield-Taylor and the 30 Belted Newton. Both use the 338 Win Mag case with only the neck diameter changed.

c-fbmi Doug got the 375 from me. Still have the 30BN, and it is a very accurate rifle, easily keeping a magazine full under five inches at 300 meters with hunting bullets.

The 338 case is quite a splendid contrivance.

Ted
 
Why not? said:
I have had both the 375 Chatfield-Taylor and the 30 Belted Newton. Both use the 338 Win Mag case with only the neck diameter changed.

c-fbmi Doug got the 375 from me. Still have the 30BN, and it is a very accurate rifle, easily keeping a magazine full under five inches at 300 meters with hunting bullets.

The 338 case is quite a splendid contrivance.

Ted
Click to expand...

I agree and when my Bob Jury Barrel gets here i am looking forward to my .416 Chatfield Taylor build getting done ! BIG brother to the 375 CT :) RJ
 
Last edited:
Why not? said:
I have had both the 375 Chatfield-Taylor and the 30 Belted Newton. Both use the 338 Win Mag case with only the neck diameter changed.

c-fbmi Doug got the 375 from me. Still have the 30BN, and it is a very accurate rifle, easily keeping a magazine full under five inches at 300 meters with hunting bullets.

The 338 case is quite a splendid contrivance.

Ted
Click to expand...

I already had a Winchester model 70 Super Express in 375H&H and I've mentioned that in a post in another thread. However, after seeing info from a couple of sources on the 375-338 and/or 375CT, I became intrigued and :redface: and decided I 'needed' one. When the one Paul had ;)'came available', I jumped at the opportunity.
Yes, a Bison hunt would be my #1 choice to use that rifle on. A gent I've delt with and know from local gun shows indicated I could go on a Bison hunt where he goes, but it seems to be going to this ranch, picking out the one you want and 'going for it'. I declined as that's not quite what I have in mind for a Bison hunt.
 
SuperCub said:
The Lee case length gauge I sent with that 375CT was as 458Win gauge until I had it cut down to .370". I found it worked fine.
Click to expand...

:confused: . You've posted .370". :confused: To start with :redface: I must confess, I've misplaced that guage you speak of. As/my earlier post, the maximum case length I found that will chamber, forming from a 300WM case is 2.535". As such, I've set 2.530" as a max case length when/if using 300WM cases. For a C.O.A.L., using the Matrix, 270gr and/or 300gr is 3.340".
 
conor_90 said:
Johnn can you share velocity results?
Click to expand...

Admittedly,:redface: I haven't 'played' with it all that much,;) yet. Part of the reason is locally, we've been experiencing access issues to our range facility with :rolleyes: recent changes in logging Co. gates policies. Complicating things further, I have a cataract problem that will be delt with shortly. Won't be soon enough for me but then I plan on getting into some serious load development and testing. I have a few fairly recent acquisitions that have that 'need'. For a rough 'guestimate' I have received the following basic load info that may give an idea as to what I can expect.
- 270gr, bullet,- IMR 4064, 2675 - 2822f/sec
-................. - IMR 4320, 2645 - 2690f/sec
- 300gr. bullet - IMR 4064, 2560 - 2620f/sec
I'm pretty sure, my primary 'go to' load will be with a 270gr Matrix and IMR 4064. When I get down to the load of choice, I'll plan to post chrony and accuracy details.
 
Last edited:
Is it extra powder space from a wider diameter bullet giving you such dramatic velocity gains over the 338?

For example woodleigh lists 300 grainers with h4831- 2140 to 2345 Noslers 300 grain offering is listed at 2290-2393 with the same powder.
 
conor_90 said:
Is it extra powder space from a wider diameter bullet giving you such dramatic velocity gains over the 338?

For example woodleigh lists 300 grainers with h4831- 2140 to 2345 Noslers 300 grain offering is listed at 2290-2393 with the same powder.
Click to expand...

Couldn't tell you Bud but there's a number of 'things' that factor into the difference in results you're questioning, the bearing surface of the bullet being one. However, with a quick comparison check of velocities of the 375CT to that of the 375H&H, in the H&H with IMR 4064 shows a 300gr doing 2383 - 2506f/sec in the #14 Speer manual. While a little higher than I would expect, in the info I've been given, with the same powder and bullet weight, velocities vary between 2560 - 2620f/sec.
 
You must log in or register to reply here.
Back
Top Bottom