Have a fairly heavy 375 H&H I'm thinking about rechambering to a bigger cased cartridge , either the 375 Weatherby , or the RUM .

But , I am wondering if there will be 375 RUM cases around in ten or fifteen years ? From what I see locally , it seems it would definately be the slowest selling number out of the RUM series . I suppose you could neck up 300 RUM cases ........

The Weatherby really wins from the standpoint of practiallity.......there will always be H&H brass or some other belted case you could form brass out of......you can use H&H ammo if needed , , and it would likely work better than the RUM for reduced loads ,.........but there is something about the RUM case in the medium bores that turns my crank ..........

By the way , the rifle is a push feed M-70 and it will hold three RUM dummy rounds down and seems to feed them pretty well from the magazine......

[ 01-13-2003, 22:49: Message edited by: sdgunslinger ]

sd - I would not hold out much hope that the .375 Ultra will remain in production in the future. The major manufacturing companies are driven by bottom line performance. I just don�t see much demand (or reason) for the .375 Ultra. If you want more umph in a standard magnum action you should also consider the .375 Dakota...

I made the 375Wby my choice for a "hot" 375 and am quite happy with it. As you mentioned, it offers many advantages over the RUM and ballistics are about the same. Mine doesn't like reduced loadings, it's best accuracy comes from 2700fps 300gr loads. Anything less and the accuracy gets sour in a hurry. The H&H is better for that type shooting.

Correct me if I'm mistaken, but isn't it the .378 Wby., not the .375 Wby.?
Yardbird

375 wby and 378 wby are two different cartridges.

Yardbird,

Weatherby has two distinctive .375 caliber offerings. One is the .378 Weatherby which is based on a case similar to a belted .416 Rigby, and the recently reintroduced .375 Weatherby, which is the .300 Weatherby necked up. (Sort of an improved .375 H&H).

I like the standard .375 H&H but thats a non-issue as this forum would be bloody boring if we all liked the standard offering. What my opinion is in this matter is why not just go all out for the .378 weatherby. If you want it hotter than the old H&H offering might as well go the whole hog. The problem with recoil I think was related to the fact the orginal rifles were to light (I have never shot a Jap .378 but have held one and it was bloody light), a reamed out cz with a good pad and well shaped stock weighing 10.5 pounds would probably be fine. Also one could download a little to .375 weatherby ballistics and if they ever wanted could crank it up. I think if a hot .375 is what a person wants the .378 weatherby could be more versatile. One could also push the new heavier .375 bullets at H&H + velocity's and start getting into .416 territory performance wise and have a great SD for excellent pentration.

I am ignoring the issue of being able to shoot H&H stuff in a .375 weatherby chamber I know.

YB - The .378 Wby is a .375 caliber with a larger case capacity over the .375 Wby

.375 Weatherby
Case Base - .5120"
Base to shoulder - 2.396"
Shoulder Width - .492"
Case OAL - 2.60"

.378 Weatherby
Case Base - .5820"
Base to shoulder - 2.345"
Shoulder Width - .561"
Case OAL - 2.913"

Considering Remington has dropped a fine legitimate round, the 416 after a short run, there is no doubt in my mind the 375 RUM will be dropped sooner then later.

At least the 416 had a market niche, the 375 RUM doesn't have much of a niche IMHO, most 375 shooters will take the H&H, and most seeking more juice will opt for the bigger bore. I just don't see the market for long range 375's as being that large.

Yep, thanks for the info. I posted then went hunting for info, I stand corrected, it's always good for the soul to be humbled once in a while, and I hate giving out incorrect information, thanks for the correction.
Yardbird

Paul-
I wasn't aware of Remington's discontining their 416. When did this happen? I was just on their website the other day and it was still listed.

Remington have been up and down on the .416. They quit making brass for a long time. Then they stopped factory ammo for a while. Then they brought it all back. They stopped mass production on it, then offered it as a chamber option. Remington doesn�t know what to do with the .416. I believe they want to support it, yet the accountants are saying no-way. Give them time, they will change their mind again.