Home Forums Hunting & Shooting Express Rifles and Big Bores Only 375 Ruger Again?

I know this has been beaten to death. Really wanting another 375 but i can't seem to find anything in and H&H that has CRF that doesn't weigh 10 lbs. I want one with backup sights and be around 8 pounds. I'd love to have an old Model 70 Classic or classic stainless, but they are hard to find. I really like the Hawkeye african, but still kinda leary of the 375 ruger and ammo. I don't reload as of yet, but working on it.

My main question is, has anyone heard whether any other ammo manufacturers are talking of picking it up? Everywhere i check is real low or out of all the hornady rounds. Figured if i get to go to africa in the next few years, i could take the ruger and my no 1 in H&H just in case something gets lost in the trip.

I want a new rifle, but just kinda doubting what i need. I just wish they would make the african in an H&H and that would make it soooo much easier.

You've looked at Kimber in .375 H&H?

Or the new Win 70? Not sure what they weigh, but the Kimber feels pretty light.

Guy

not sure whether i can afford the kimber, but i do like the winchesters. They are made about 45 minutes from my house.

Get a .375 H&H if you can.

I'm pretty sure Double Tap makes 375 Ruger ammo.
http://www.doubletapammo.com/php/catalog/index.php?cPath=21_99

Custom Cartirdge Inc.
http://customcartridge.com/order/list.php?gval%5BProdCaliber%5D=375+Ruger&gval%5BProdUseGeneral%5D=Hunting&pricing=&action=Search

KC Precision
http://kcprecisionballistics.com/375rubax.html

Several options available. And it's gonna get better. Good luck finding a 8lb. H&H off the shelf.

Double Tap is producing loaded ammo in the Ruger as well.
http://www.doubletapammo.com/php/catalog/index.php?cPath=21_99

I have not used it. I went with the Ruger as it was the only stainless, left hand, short barreled bolt I could find/that exists. I am happy with it in all ways so far. With 270 grain factory loads it shot a five shot 5/8th inch group at 100 yards. Plus the rifle cost 1/3 the price of any other left handed 375 bolt gun.

Edit:sorry X2mos didn't see your reply

i knew double tap made it, didn't know the other two. Might be the wway to go. I've not read anything bad about em except for ammo availability. Might make a great all around rifle, especially if i start reloading.

I handload for my 375 Ruger, easy to get good results. Perhaps you could get help from an experienced friend?
If you are going to RSA they only allow one gun of a given caliber, regardless of cartridge, ie: no 44mag with a 444, no 375 HH with a 375 Ruger,

.375 Dakota?

Now there is a round you can find at Gert and Izzy's Gas & Grub in Snake Navel ID on a Sunday night.

Ok Swampy The Horse&Horse action is better than what? Comback son

I admit that most 375 H&H's are heavier than they need to be....that said,at least one member here had his M70 Classic barrel turned down....another had it fluted.Both methods cut weight considerably....

OR, you can build a 375H&H....you will get a rifle just as light as any 375 Ruger.I know....I have one.

Last Ruger African I weighed(nice rifle!)was 8 pounds naked. Add scope and rings, you're at 9 pounds.Still not bad for a 375 of any type, but a full pound hevaier than my 375H&H.

I like the Ruger 375 real well...great cartridge but not enough more of anything to make me switch over.

Sorry BobinNH more of 416 ger my self. Oh just giving our delta gecko a little crap.kawi

Either the H&H or Ruger are equally effective IMO - I have both and like both. It comes down to fit and handling of the particular rifle, and what you like. I happen to like the Ruger version in the African - it's light, feels right, points very well, and won't break the bank. But I won't trade away my M-70 with a a 25" barrel - the pre-64 in the H&H is the ultimate classical medium bore. They're different but both do the job.

Always a good reason for a new rifle.

I handload my ammo for the hunt so I don't need to buy it at a gas station. YMMV
whelennut

I hope you can get it where you need to use it. Many airlines won't knowingly transport reloads.

Which airlines would those be? I just checked the ones I fly on a regular basis and reloads aren't mentioned anywhere. I also checked with a couple folks who have/are doing Africa and learned the same. Packaging is addressed "securely packed in fiber, wood, plastic or metal boxes and provide separation for cartridges." but nothing about reloads.

George

FWIW,

Since Ruger is to release the African in 9.3x62, my plan is to pick up one of those. My M70 375H&H will go in for a rebore/chamber to 458 Lott. It's weighted about right for that round IMHO. Combining the 9.3x62 with my 416 Rigby or the 458 Lott will give me a nice combo for anything across the globe with the 9.3 capable of backing up the other two in a pinch.

David

Most say in original unopened boxes.

So which ones are "most" as I checked several?

George

Damn good thing I am finding out now that I couldn't fly with handloads,so I can get off all those flights that I wasn't supposed to be on for the past 30+ years.....before they call and tell me I wasn't supposed to have done it...and before they take action retroactively....against me....

I coulda lost a lot of money that I would/should not have spent to get thrown off now.....instead...so thanks for letting me know back then...when I should not have done it....

Does this make any sense to anyone reading this?

No, which is why I'm politely asking for clarification prior to calling bullchit. I have now upped my check from "several" to "a bunch" and can't find any such thing.

George

Typical Swampcrotch bullshit. Reloads are fine as long as they are in boxes, cardboard, plastic or metal. A good question would be, how many times has he been on an airliner with guns & ammo?

Rules have changed several times just lately.

So which airlines are you referring to?

George

The swamp-itch is at it again....spouting crap he knows nothing about!

Yeah, but what if you forgot to pack it, or the baggage handlers lost it?

Actually, I load all my hunting ammo too, and yours is a very round, IMO.

..........Yup! Been beaten to death and then some. So let`s have some more fun, debate and beat it some more.

At one time, I did own a Win 375 H&H. It weighed about 11 lbs or so w/scope and was about 46" long. Although I`m quite strong, it nevertheless handled like a pig attached to the end of a shovel. Winchester and Browning have lightened their newer 375 H&H rifles up a bit, but still have the same `ol longer 375 H&H overall rifle lengths. The 375 H&H Kimbers are not exactly light either.

Then came along the 20" barreled, 40.75" OAL 375 Ruger Alaskan which I bought new in early `08. To say the least, a huge difference for the better in every conceivable handling dept; speed, handiness, shouldering, carrying; you name it. Many don`t care for its Hogue stock and it can be swapped! I just happen to like it. Mine weighs right at a hair over 9 lbs with scope. Listed weight for the Alaskan without scope and rings is 8 lbs.

While there is no killing difference between the 375 Ruger and 375 H&H, the 375 Ruger Alaskan nevertheless does duplicate any and all performance ballistics that any longer barreled and longer lengthed 375 H&H rifle can dish out. Much better handling from a shorter OAL rifle that gives up nothing ballistically to any longer 375 H&H rifle, is the Ruger Alaskan`s theme song. And it doesn`t disappoint.

As with all newly intro`d cartridges (especially those that have grown by leaps `n bounds in popularity) such as the 375 Ruger, many out of the way gun stores and other local gun stores don`t have ammo availability as of yet. As a reloader, I don`t need to worry about 375 Ruger ammo. Brass is available. In the future, I suggest you become a reloader.

Should you delight yourself and engage in a N/American or long ranged out of the country hunting trip, baggage handlers and airlines will not know the difference in whether you have a 375 Ruger rifle and its reloaded/factory ammo or a 375 H&H rifle and its ammo. One can get lost in transport just as easily as the other. In either case, your PH will have back up rifles and ammo for just such situations. Though it can happen, this losing of rifles and ammo in transport and,,,"therefore I should not buy any newer cartridge regardless of how popular",,,is a bunch of crap! This particular argument is always brought out when anyone comtemplates purchasing a newer round. I guess back in 1912 and through the late teens, people were afraid to pack up their newly intro`d 375 H&H rifles and ammo and trek to exotic hunting destinations too uh? Yeah right!

You can also call Hornady and learn from them, that they already have and are in fact still in the process of acquiring more distribtion approval permits for various So African provinces for their 375 and 416 Ruger factory ammo. Aside from Africa, Hornady`s worldwide distribution process is ongoing. And it happens to be a fact, that African PHs are getting their hands on 375 and 416 Ruger rifles. Does anyone think that Hornady would introduce two obvious winning cartridges, and then NOT have an going program for worldwide distribution?

If your priority is the more traditional and/or more on the nostalgic side, then get a 375 H&H and live with the added rifle length, weight and the more difficult handling. But if you want a powerhouse with the same or slightly better ballistic performance chambered in a shorter and better handling overall pkg which is just as accurate, then the 375 Ruger is your choice chambered in either the Ruger Alaskan or African. Both are extremely durable, accurate, and both feed flawlessly as well. Mine is and does!

The 20" barreled Howa M1500 chambered in the 375 Ruger would also fall into the great handling, accurate and durable categories and at a great price too.

My wife works as a travel agent and I think it is probably just as likely that they would lose your rifle. Then what would you do without a rifle? Probably either wait at the airport for it or borrow from someone else.
We flew to Alaska for our wedding anniversary to hunt caribou and we both used reloads. Nobody cared!
whelennut

I think what Swampy is thinking is not reloads, but what is stamped on the cartridge. For instance if you have 35 Whelen reloads in a 30-06 case, South African officials may frown on this. Whatever the gun has stamped as caliber, ammo has to have the same stamp on it. So, if you reload, you must use proper brass. I also think Federal is going to make the 375 and 416 Ruger rounds now. Both are very popular in Alaska. I read where someone is going to neck down the 375 ruger to .338 to try, and also 35 caliber.

Last April, SAPS never even asked about or to see our ammo (reloads btw, in plastic 20rd boxes). All they did was give the serial#'s a cursory look, took all of 5 min, out the door. Of course, Chris & Bruce from Gracy were there making things go very smoothly!

CDNN is making the decision easier, if you can live without the barrel band.

.375 Ruger Africans for $650.

Pete

Now that is a GREAT post!

I hear the "what if they lose your ammo" thing on this forum a lot.
I flew to Colorado to hunt elk a few years back and one of the guys had a rifle get lost on the way to Colorado?
Why is it that nobody ever asks that question?
What will you do if your rifle gets lost on the way to Africa?
I had a rifle confiscated in Amsterdam when changing planes 5 years ago.
It really sucks!
whelennut

I fly internationally at least every 2 years and my work collegue flys annually. In addition to that, i have work teams come over here to Europe every Summer and in the last 6 years we've never, never had any of the airlines permanently loose a bag.

I live in Bosnia and the types of airlines who fly here are not always the most up-to-date in their technology. However, individual bar-codes on every checked bag makes the tracking headache go away. The longest we've waited for a bag was 3 days...

3 days would suck on a 7 day hunt in africa

why coming from so far for only 7 days ???!!!

just saying. Some are 7 day hunts. Might be all i'll be able to afford if i ever get to go!

I am pretty more than sure the 375 Ruger is not going away. I am in the market for a 375 also and the CZ 550 in H&H is too long and heavy so it'll probably be the R Hawkeye African in 375 R which I may then do some twin king to. The Ruger cartridge is too well designed--ie, "30/06 length" action size--to disappear into the dustbin of history. Us lefties are very limited.

Bob, what stock is your 375 custom in? if you dropped the wood from the Ruger and dressed it in an ultralight stock, you might be able to save a few ounces....what about bottom metal, is your custom ultralight aluminum?
on top of that... and no knock to customs at all... the cost per ounce in that pound of weight difference are pretty expensive... a Ruger 375 can be had for around $700... my guess is that is about what you have in the barrel alone.

I'm not even sure what is out there for the 375 ruger but maybe the OP is best off to grab one and make some mods to lighten it up.

lovemy99:My 375 is built on a pre 64 M70 action,custom contoured barrel and Brown Precision stock.It was built back in the 80's and is on it's second barrel.With two piece base,rings, and 4X scope it weighs 8 pounds on the nose.

We can confuse factory rifles and custom here.Like I said,most factory H&H's have heavier barrels than needed. The bottom line is that the difference, in weight,between any 375(whether H&H or Ruger),is in barrel contour,and stock.

Ruger did a great job in the African and Alaskan,using a nicely contoured barrel,and in the African,a nicely shaped stock to give the rifle a trim contour and reasonable weight.I don't care for the Alaskan stock at all but that's a matter of preference.

My only point is not to disparage the 375 Ruger,nor the rifles.....only to point out that if you are building a rifle,you can build one just as light as the other in either caliber by getting a lighter barrel and stock.That is where the weight savings will be.....not in the "shorter action" of the Ruger chambering,as I have seen erroneously stated on here.The actions are not shorter on the Ruger; the magazine length and bolt throw are shorter....that's all.

In a factory offering, the Ruger is lighter than, say, a M70 Classic in 375.OTOH custom makers have been building H&H's that weigh exactly what the Ruger rifles weigh, for decades,in both synthetic, and higher end wood stocks.

It would be dead nuts simple to build a factory offering in 375H&H tomorrow that is just as light as the 375 Rugers;but manufacturer's are sometimes slow to catch on with many things.

BigS-

I pretty much see it that way too. As much as I'm nostalgic for the H&H and love it's excellence in moderation, the Ruger is the H&H in a more compact package and that includes the Hawkeye African rifle. I used the H&H in Africa and came to an appreciation for what's been known for decades now. That said I'm a lefty and am getting a Ruger African in their version of 375. The CZ 550's specs sound more appropriate for the 416s--too long and heavy for me. Of course I'm talking OTC rifles not custom.

The stuff about traveling with cartridges that get lost I think is over blown; I can think of 5 or 10 things that concern me more on An international flight than that.

...............Yep! It`s not just the 375 Ruger round, it is also the rifles too. A shorter, better handling, and handier packaged 375 rifle such as my Ruger Alaskan with its 20" barrel which duplicates 24" and 25" tubed 375 H&H ballistics, was and still is quite appealing.

And imo, lost rifles and ammo, is over blown. The African PHs have the situation covered should that occur with their back-up rifles and ammo.

But anytime new cartridges are intro`d that easily overlaps the `ol tried, true, and proven standbys etc, there are always going to be those detractors saying either,,,,"the new round won`t last",,,"there`s no need for it",,,"why for",,,"we have too many 375`s already",,,"what if you can`t find ammo?",,,"what if the rifle and ammo is lost in transit?",,,and on, and on, and on.

The 375 Ruger already has and will continue to blow its detractors (so called marketing geniuses) and their predictions completely out of the water. .... A few or maybe many diehard H&H fans imo, are just a foaming at the mouth waiting for the day when the 375 Ruger dramatically declines in popularity and/or goes bye-bye for good.

You know who you are, and you`ll be waiting a very, very, very, very long time.

Booowaa,,,hahahahahahahahahaha!...............

...........I can think of one!..........HI SWAMPY!!!

I am not bashing either the .300 H&H or .375 H&H rounds as they are classics with a proven track record but when the .375 Ruger came out I predicted that it would eventually supplant the .375 H&H for the same reason that the .300 Win supplanted the .300 H&H. It does everything the H&H design does, is a more modern design and fits in a standard length action.

It does everything that the 375 H&H does except feed as well

I can't make a direct comparison as I've never had an H&H. I will say that my Alaskan has yet to have any feeding issues.

George

A model 70 in 375 H&H will feed empty cases. The sloping body taper aids in feeding and extration both of which are big PLUES in a dangerous game rifle, something that Phil apparently has forgotten

given Phils opinions tend to be tempered in use while actually going after dangerous game i tend to give his opinions some weight....

And rewmeber his daughter had a jam with a Ruger and the Hornady ammo, that would not have happen with a M-70 and its cone breach which also aids in feeding. The jam could have had an unhappy ending if the bear had of pressed on,

But of coures you can follow that path if you wish

I have used the 375 H&H for over thirty years and am quite familiar with it's virtues. I have also done considerable shooting with the 375 Ruger and for my use - which is actually hunting big bears rather than speculating about it , and I don't see any reason to load empties, I'll take the Ruger.

And the jams? Straight wall cases do not feed as well as tapered cases, no speculation just a fact

that is pure speculation and BS as I have been on a stalk with another of my guides who was using a M-70 375 H&H and when the bear charged the bulet jacket of his second round caught on the sharp edge of the damned coned breech and he bent the round so bad that after I had finally killed the bear with the third shot it was only 20 feet from him he was still trying to extract the bent round. the problem I mentioned about my daughter's rifle was simply due to the shape and construction of the Hornady DGX bullet. they cause problems in both of my 375 H&H's as well.

Is that is why 45acp pistols are much less reliable than 9mm's ?

Now you want to compare a center feed hand gun round to a staggered feed bolt gun. You are a funny amn

I thought we were talking feeding issues and cartridge shapes and you said it was no speculation but "fact". Care to elaborate and explain to all of us why your favorite pistol is different?
Are you in the habit of loading empties in it as well?

I have a question about the Ruger Alaskan. Can you close the bolt on a round hand fed into the chamber giving you 3+1 capacity?

You can on the one's I have tried and for your information you can as well with even military M-98 actions if you pinch the middle of the extractor as you close the bolt.

as soon as i can find an alaskan with the barrel band, i'm gonna get one and slap it in a paddle stock with either a 1.5-5 or 2.5-8 leupold and be ready for anything.

that makes about as rugged, light, lithe and lethal a rifle as you can make - but you can see I used the Ruger sling swivel rather than the barrel band.

If we are talking about oranges, then apples are not in the subject even though they are both fruit

Idf that happend with the M-70 then it is "low feeding" and there is sopmething wrong with it. A M-70 that is in perfect order will not jame with any bullet one wants to use. You do know this do you not?

So if you were able to fit a 375 H&H in a pistol it would feed better than a 458Lott? Or the slick little silenced 45acp carbines being made in England on SMLE actions probably don't feed well? It was you who brought up "facts" that you don't seem to have any understanding of.
I have had more feeding problems with the 375 H&H than with my .458 Win. Care to share your experiences?

Humor is more your strong suite than facts I see

Thanks for the info Phil, I wasn't aware of that. My experience with the "boat paddle" stocks is that they seemed to translate quite a bit of recoil to the shooter. Have you found that to be the case with the 375 as compared to the Hogue stock?

Also whats the deal with the barrel band? Do they have a useful advantage? Or just for looks?

only advantages i can think off is that it allows the rifle to sit lower on the shoulder if going through brush and your hand cant hit the swivel stud under recoil....

With all this discussion about feeding issues regarding the 375 Ruger, I can state that I have never had one problem in the 3 years I`ve owned my Alaskan.

I always fully size my cases.

It is automatically assumed that if the casing is more tapered like the 375 H&H, it means that less feeding issues will occur.

Well yes,,,and no.

[quote=rattler]only advantages i can think off is that it allows the rifle to sit lower on the shoulder if going through brush and your hand cant hit the swivel stud under recoil....[/

That makes sense.

Here's another question, is the black model just a stainless rifle with a black coating on it? What I'm getting at is if the black one is every bit as weather resistant as the stainless model?

Ruger makes the black model and claims it is also stainless

More moderen design? It is a 300 Newton case which dates back many many decades

jwp,

how interesting. do you have the 300 newton case specs on hand? i think it would interesting to compare the two side by each.

I'll not get between the pissing match except to offer this: Straight walled cases like the 458Lott present more of a feeding problem that tapered/sloped shouldered cases in bolt action rifles. That is a fact,espoused by many and among them none other than D'Arcy Echols.

I'ved owned two production 375Ruger rifles and both fed extremely slick and reliable straight out the box which I thought was a plus. Every 375H&H production rifle I've owned, to include Ruger RSM, CZ, and M70 required some tweaking out the box to feed as well to my satisfaction. I don't see anything inherently bad about the 375Ruger cartridge design, and if anything, I'm of the opinion that it inherently feeds very well. IMHO, either chambering can be made to feed well in a good rifle, and I don't see either having a big leg up on the other in that requirement.

Best

That may be true - at least in theory - but have you ever used one of D'Arcy's 458 Lott's? They feed about as slick as a bolt rifle can. And the 375's are not straight cases as they are necked down and even less likely to hang up.
From what I have learned the main reason for the tapered H&H cases was to ease extraction in hot climates. Not to ease feeding.
The facts are that virtually all the Ruger 375 rifles feed very well with everything except the DGX bullets. which D'Arcy will tell you are hard to make feed in anything. He is not a fan of FN bullets in bolt rifles for this reason

458- are both those rifles in the picture 375 rugers? The top one appears to me to have a thinner barrel is why I asked.

The top one is a 22 and the bottom one is a 416. but I have used the same stock with the 375 Ruger as well.

Sure I have, hence my comment just repeating what he said regarding straight walled vs tapered/shoulder cases.

Phil,

Just took possession of a Ruger African in 375 R and for the money I'm pleased. The wood is plain as expected, the bolt a little rough in the raceways, some gaposis in wood-to-metal fit, but the upside is... a rifle proportioned to the cartridge, all of which is old news, but good just the same.

It is indeed a fact that is lost on some

Thanks! Guessing that pair could keep the larder full of all sizes of game.

CARTRIDGE: .30 Newton
OTHER NAMES:
DIA: ,30S
,30 Adolph Express
BALLISTEK NO: 30SZ
NAI NO: RXB
12333/4,799
DATA SOURCE: NAl/Ballistek HISTORICAL DATA: By C. Ne\Nton for F, Adolph in 1912, NOTES:
LOADING DATA:
BUUlET wr,/TYPE l80/Spire
POWDER wr,/TYPE 73,0/4831
IVELOCITY (,/SEC) ISOURCE 2890
Barnes
CASE PREPARATION: SHELLHOLDER (RCeS): 28 MAKE FROM: S x 6SS. F/L size the Sx6SS CBSe in the Nevvton die. Trim to length and chamfer. Fireform in the chamber.
PHYSICAL DATA (INCHES): CASE TYPE: Rimless Bottleneck CASE LENGTH A =2,515 HEAD DIAMETER B =.524 RIM DIAMETER D=.519 NECK DIAMETER F=.340 NECK LENGTH H= .310 SHOULDER LENGTH K=.185 BODY ANGLE (OEG'S/SIDE): .220
I DIMENSIONAL DRAWING: I F r-i --(3
CASE CAPACITY CC'S =5.78 LOADED LENGTH: 3.29 BELT DIAMETER C=N/A RIM THICKNESS E= .05
J E I
SHOULDER DIAMETER G=.51 LENGTH TO SHOULDER J =2.02 SHOULDER ANGLE IDEG'S/SIDE): 24.67 PRIMER: IJR
.BLU'�� �" ~, .: ,;~L-L ~ rOl
CASE CAPACITY (GR'S WATER): 89.20
-NOT ACTUAL SIZE-
DO NOT SCALECARTRIDGE:

The Ruger cartridge and the Newton are very similar but when I talked with Steve Hornady and asked him how he came up with the idea he said he simply asked his guys to design a standard length case with no belt and the .532 rim diameter of standard magnum.

They did, off of the 30 Newton no harm in doing so. But to claim a more modern case for the 375 Ruger is just not factual.
A tapered case aids in feeding and extraction, to deny this basic fact is just wrong.

There is no doubt it "aids" feeding and extraction but a well tuned bolt rifle can be made to work perfectly with straight sided rounds like the 458 Win and Lott so what is your point?

.................The Ruger case is similiar to the Newton. But in the developing of the 375 Ruger, I don`t believe that it was Hornady`s original intention to design a case based on the Newton. Instead imo, it just happened to turn out that way and was co-incidental.

And now that I think about it and in looking over my 375 Ruger casings now right in front of me, what other 375 caliber non belted case design could anyone have possibly developed, which would have accomplished Hornady`s intended goal? Which was; a 30-06 lengthed cartridge with increased case capacity over the H&H, for the purpose of achieving the same ballistic performance from a shorter 20" barrel as the longer barreled 375 H&Hs.

Obviously to increase the powder capacity for the 375 Ruger and to keep it at a 30-06 length, the H&H taper had to go away straightening the case walls, and they had to increase the casing diameter.

Things being as they are and either through the Newton case or otherwise, I really don`t care how or what the influence was as to how Hornady came up with the 375 Ruger case design.

The bottom line, is that this round is a wonderful cartridge, shoots as accurately as any 375, and does so with as much ballistic horsepower as the longer barreled 375 H&H rifles......That is what matters.

That sums it up pretty well and is hard to argue against; therefore, I declare a draw

My point is with off the shelf factory rifles (which are not well tuned) a tapred case is an aid to good feeding and extraction. I thought that point was obvious and a given, but I guess not

Talked to the people at Ruger today and contrary to what their website and catalog says the Alaskan black model is NOT stainless steel. Dangit I found a smokin deal on one too.......

Are you saying that Hornady re-invented the wheel? New and diferent cartidge are brought out and they all are bsed on an existing case. Sometimes that existing case is almost in oblivion

The main purpose of tapered cases for both military and sporting rifles has always been to aid extraction - not feeding. When you are using spitzer bullets a lightly tapered case has virtually no bearing on how well they feed, but it does make a difference with dirty, corroded or hot loads. The original 300 and 375 H&H rounds were loaded with cordite, which was temperature sensitive and in the tropics could cause pressure spikes. A tapered case helped.