JAL-
Brass for the Wby doesn't stretch anywhere near as much as H&H brass, in my experience.

JTG-
I didn't ask the question about your actual hunting experience to make myself feel better about owning a rifle so chambered. I don't need you or anyone else to validate what I like or don't like. I asked it in order to find out if you have experience with it and if so, what were the results that gave you the negative opinion you have. I will assume that by not answering that you have none.

[/QUOTE]Originally posted by JohnTheGreek:


I said this and I truly meant it! If you guys want to sit around extending valid arguments ad absurdum in order to make yourselves feel better about a goofy chambering then, by all means, knock yourselves out! [/QUOTE]



There you go again. Why do you phrase things so arrogantly?? It may not be a chambering you care for. Myabe you don't understand that other people like it and use it with satisfaction. In that case you are more than free to say it would not be your choice, and why. Having done that, there is no need to insult those who still choose not to do exactly as you would.

You seem to be unable to extend others the same courtesy they give you.... No one is damning your choice, the plain vanilla 375 H&H, so why it is so necessary for you to use disparaging terms such as "goofy chambering" to put down their choice(s)? If their choice meets their needs, then it is probably just as good an option for them in their environments as yours is for you.



[/QUOTE]I won't be participating.

Best Regards,

John[/QUOTE]



I think maybe you said that before. Was it a true statement that can be relied on?

quote:

I said this and I truly meant it! If you guys want to sit around extending valid arguments ad absurdum ("Well, a 22 hornet is that much faster than a 22LR and we know how much better it is on squirrels") or argue outside the context of the discussion ("But I would rather have this round for elk" when we are talking about a DGR) or play the "I've shot this much stuff, what have you shot" game in order to make yourselves feel better about a goofy chambering then, by all means, knock yourselves out! I won't be participating.

Translation : I have never used a fast 375 on game so I really don't know what the hell I am talking about . But I did read on the internet that a slow bullet kills better than a fast one .

[QUOTE]Originally posted by JohnTheGreek:
Hyper Velocity + Heavy Bullet = ERRATIC PERFORMANCE

That profundity is about as antiquated as wrong as the liberal ideas he proffers.
That might have been true with bullets 30 years ago, but with today's bullets lke the TSX, Swift, etc, velocity can be a great asset in enhancing both killing performance and in the case of the 375 Weatherby, range. I don't have as much hunting experience as most of you here, but I can attest that velocity does add to a bullet's killing efficacy. If yo doubt me, ask Saeed and his experience with his 375/404.

The 375 H&H is a great cartridge and like I stated previosuly, close to being the best all around caliber out there, but it can and has been improved upon. AS I se it, the main advantage of the H&H over the Wetaherby is ammo availability, but it that was our sole determinng factor, none of us would ever leave the country unless carrying a 458, 375, 3006, 308 or a 22lr. jorge

According to the Hornady ballistic tables for their 300 grain RN bullet, when started at 2,600 fps, it loses an average of 3.33 fps for every yard traveled, over the first hundred yards.

Started at 2,800 fps, it loses an average of 3.5 fps per yard over the same distance.


That means that at 100 yards, the .375 Weatherby with a MV of 2,800 fps will be going 2,450 fps, (150 fps SLOWER than the plain vanilla .375 H&H is at the muzzle if the H&H round is loaded to launch at 2,600 fps muzzle velocity).


Looked at another way, that means the .375 Weatherby will be doing the same velocity at about 57 yards as the plain H&H version is traveling at the muzzle.

Somehow, I do not believe that if we shoot the
.375 Weatherby at an animal only 40 yards away we are in dire danger of having the bullet blow up, yet do not have that same problem a bit closer in with the plain .375 H&H. At 40 yards, the Weatherby launched bullet would only be travelling at 2,660 fps.

Certainly, IF it would blow apart, we could expect a very similar problem from the .375 H&H at maybe 10-12 yards, where it would still be going nearly muzzle velocity.

Because one never knows where an animal will be standing, it seems pretty obvious to me that any bullet fragile enough to blow up at 40 yards from one gun and maybe 12 yards from another simply calls for a better bullet, not a reduction of power.

quote:

Originally posted by JohnTheGreek:
...or argue outside the context of the discussion ("But I would rather have this round for elk" when we are talking about a DGR)...
Best Regards,
John

I'm not arguing, I'm stating my fact-based opinion.I said

quote:

... Flipping that around, the 375 Wea. has the same advantage that the 300 win mag has over the 30-06 - about 200 fps using heavy bullets. I'd rather shoot an elk with the 300 win. mag. for the added benefits it provides....

Let me now say:

Flipping that around, the 300 win. mag. has the same advantage that the 375 Wea. has over the 375 H&H - about 200 fps using heavy bullets. I'd rather shoot a Cape Bufalo with the 375 Wea. for the added benefits it provides....

Now, I am sure this puts things in context for you

I like Harald Wolf's comments on the 375 H&H as compared to the 9.3 x 64 Brenneke:

"The British .375 H&H Magnum was designed for the out-of-date Cordite string propellant, which was certainly inferior and far less flexible than the new continental flake powders of the 1930's."

With the 375 H&H you are really restricted to one powder; RL-15.

The 375 Weatherby is best served with 4350 (your choice) for optimum perrformance. You can easily down-load it by going to 4831, RL-22, etc.

For a nice trim and light rifle that sends the bullets out slowly, the 376 Steyr is great, and better than the 375 H&H.

LD

I prefer Re22 in my rifle. Second choice is IMR4831, I found 4350 and Re19 to deliver lower velocities and higher pressures than either of the above.

John,
I think RL-22 and MRP are both great choices, and those are probably the same powder.

You have a shorter freebore, done by D'Arcy Echols, eh?

The fact that D'Arcy Echols will chamber a rifle for this cartridge speaks well of the .375 Weatherby.

I agree with lawndart's recommendation of 4350 for the 300 grainers and lighter bullets. I prefer H4350 Extreme, and yes it is of the newer Short Cut variety, but since they don't make the long cut variety anymore (like they do in H4831) you don't have to specify the SC with H4350.

MRP and RL-22 will get 350 grainers up to 2600 fps with no pressure signs. A .375 H&H will never begin to approach this.

The .375 H&H is best with RL-15, I agree. Pressures get too high even in the .375 Weatherby to allow much advantage with the lower weight bullets and faster powders.

John may even have a tighter barrel as well as a tighter throat.

Anyway, H4350, MRP, RL-22: rifles vary.

RIP,
Mine could be a "tight" barrel but I really don't know. The throat is somewhat different than a new factory throat, my guess is that mine os somewhat shorter.
Either way, I get an easy 2700+fps with 300grs and that is a solid 200fps over my 25" barreled H&H, so I'm content! I have found the Wby's advantage mostly goes away when loading the 260gr bullets. Here, the R15 really matches up perfectly with the H&H case, giving about all there is to get. I don't care to hunt with bullets that light, so it's a non issue for me. When you get to the 270gr TSX and heavier, the Wby really starts to strut it's stuff.

In the case of my rifle , I saw a nice increase from the lighter slugs going to the Weatherby chamber. With my H&H chamber , I could not get the speeds some folks have claimed for RL15 . For instance , it struggled to reach 2750 with the 260 gr Nosler (accubond) . After re-chambering , I do get 3000 fps with that same bullet and Ramshot Hunter . Hunter seems to be little slower than 4350 , and being a fine ball powder , you can get a couple more grains in the case without undue compression .

Also played with the 250 gr Sierra and the 235 gr XLC . With the 250 , I went from 2800 tops to an easy 3000 in the Weatherby . And from 2900 to 3100 fps with the 235 gr . With these very light bullets , RL15 again takes over as the best powder .

sdgunslinger,
Sounds like you have found some high performance loads. Being "peculiar" has some advantages.

You asked would it be worth it to rechamber. That is up to you. You will get slightly flatter trajectories, slightly higher terminal energy and slightly higher recoil. There may be a once-in-a-lifetime shot that you might need that little more, but then again, you might've needed even more.
You never mentioned what you were looking for in a rifle, by the way. If what you want is substantially more gun, go buy substantially more gun; don't just try to spit out another 150 fps. But if what you really want is an improved H&H case and the added trajectory, go for it.
The H&H has a permanent place in history, and it is by all accounts among the greatest rounds of the 20th century. But why the extreme taper? The design parameters around which that round was made are no longer the norm. All Wby did (for the most part) is bring the taper up-to-date. In a modern rifle, the only reason to chamber the H&H over the Wby is that it is easier to buy ammo and it is nostalgic. It comes down to a popularity contest rather than a performance advantage.
It's your rifle; put what you want in it. If you're trying to justify the money of rechambering by performance gain, don't. Do it because you want bullets to go a little faster and won't miss the H&H "classy" thing.
As for the "Winchester sold to overseas" thing, what you heard was that "overseas" has decided to close down the Winchester plant and stop making rifles there. That may or may not make your unaltered rifle worth more to a buy later, but it's not going to be worth any more on a hunt.
(For the record, I'm of the "leave-it-alone" camp, despite the obvious advantage rechambering would bring. An M70 H&H is a nice thing; go buy a used 416 Rem or something if you want heavy bullets, or a 340 Wby if you want flat.)

Bwana-be,
Yep, Saeed is an idiot for using .375 Weatherby ballistics for everything with only 300 grain Walterhogs in his .375/404 KISS-KISS.

And this from you? You who wants to neck a shortened .338 Lapua Magnum to .510 caliber.

That is really "peculiar" or just some pot stirring, which is just fine.

BTW, whatever happened to Ming? He was working on a .510/.416 Rigby years ago. Advanced chap that one.

I will confess to being on the "improved" side of the camp in this dispute. I have an Ackley-built 98 in 375AI.
More velocity is a-l-w-a-y-s an improvement, given the proper bullet. That said, I think rechambering a pre-64 M70 is a crime. Use a Mauser 98 or Enfield, or something new, and go happy. RIP you are dead-on here, I may have to look at that throat magic, Mine is done with the 350's at about 2650 or so. For what it's worth, I would not hunt buffalo or elephant with a standard. I would take a shot with that extra 200fps and a 350gr. I, would feel more confident and better prepared. That is also why I have a 458 Lott, and a 550RNS (under construction).
Robert Ruark said it best "...use enough gun...".

regards,

Rich

Oh, yeah, almost forgot the actual reson to post: the sticks of cordite were sheaved and inserted into the 375 case, then the final case forming (necking) was done. Another reason why they didn't reload...try sticking uncooked pasta strands in an empy case sometime when you are Really! bored and see what I mean.

Rich

Chasing your tails.

It depends on what you want to do...

If you want to argure about case volume, pressure, velocities, etc., do the Weatherby thing..

If you want to go hunting, take the H&H load the 270's 2,600-2,700fps or the 300's2,500-2,600fps and go KILL something...

quote:

Originally posted by Idaho Sharpshooter:
Robert Ruark said it best "...use enough gun..."

One gun, with "enough gun" for anything: .375 Weatherby.

Best ammo availability and versatility in the world, and that includes .375 H&H. Don't leave home without it: .375 Weatherby

quote:

Originally posted by Pat B.:
Chasing your tails.

Yep, Saeed is an idiot tail chaser too, otherwise he would be using a .375 H&H, what?

Geez, the Pink contingent is persistent! What insecurity is it that they suffer from that they must cling to nostalgia so?

quote:

Originally posted by RIP:
And this from you? You who wants to neck a shortened .338 Lapua Magnum to .510 caliber.

That is really "peculiar" or just some pot stirring, which is just fine.

I'll take "peculiar" anyday!
But really, we're talking about two things.
I'm a power monger, for sure. One doesn't hunt elk with a 358-404 and profess that plenty is enough!
If you want to build a rifle from scratch, just find an action, a bullet and speed and go from there. (E.g., M70 SA/535g .510"/2200fps =2.4"Rigby.) That is VERY different from having an H&H in your hand and saying, "should I change this?"
Some pepole are wildcat shy, and the 375 Wby is aweful close to wildcat.

SHOOTERS PRO SHOP SALE 375 WEATHERBY BRASS 20/$30.00

I just stocked up.

NOSLER FACTORY SALE FAILSAFE 300 grain .375" BULLETS 1/2 PRICE

I just stocked up.

I have a .375 H&H. It's nice, effective, traditional, socially correct, light in weight and mild of recoil.

I have a 375 Weatherby. It is just bitchin'!

I have a box or two of Sierra 300 grain .375" GameKing bullets. Might have to pop a couple Rockchucks soon.

Yeeeeeeeeeeeee Haaaaaaaaaaawww!

quote:

Originally posted by lawndart:

I have a .375 H&H. It's nice, effective, traditional, socially correct, light in weight and mild of recoil.

I have a 375 Weatherby. It is just bitchin'!

Yeeeeeeeeeeeee Haaaaaaaaaaawww!

As usual, lawndart says it best.

I rest my case.

lawndart-
Are those Fail Safes moly coated?

Yes,

They are moly coated. I'm not a fan of moly coating on traditional lead core/gilding covered bullets, but I think it is a good idea for fail safes. They have fairly long shanks on a bullet that doesn't yield too well to the rifling, so anything to decrease the friction helps.

IIRC the Lubalox coating belongs to Winchester/Olin. Since they aren't doing Failsafes anymore (gotta love those new POS CXP3-R2D2-C3PO bullets), Nosler is on their own.

In my limited experience, the Failsafes like a little velocity on them.

LD

Hey RIP,

I think Bwana-B really wants a 375 Weatherby PF in a stock like your 470 MBOGO laminated number.

As Lou Reed used to croon, "Hey baby, take a walk on the wild side."

Curly said it best: "Nyah, nyah, nyah."

LD

I guess my final take on it is that it just isn't big enough to get me going, so I won't go out of my way for it. But if I found a nice one that fit me I'd like to pick it up. (BTW, "nice"=walnut!)
[aside: if I finally get my Mbogo and look down at it in my hands to find it in a pushfeed action, I'll probably cry!]
It's as much a better round as the 308 Baer (or similar) is the 300 H&H. IOW, no reason for that taper taking up powder space and increasing backthrust especially if you're a hotrodder.