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Don't try to increase the power by jacking up the velocity. Want more power? Use a bigger bullet. All else being equal, you will get more power that way. Mike Wilderness is my cathedral, and hunting is my prayer. | |||
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I am sure it is revolutions per second as indicated by the rps suffix and the words rotational velocity. I cannot talk for Andy but I find this quite easy. I look at the carcass and if it looks like this:  I figure there is more damage than if it looks like this:  | |||
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Duh, I never thought of that!  | |||
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Mrlexma, I did try larger diameter (and or heavier) projectiles including .458, .50, .54, and shotgun slugs. They were much less effective. Even when switching to neck (spine) shot. Same was true for .338 caliber 275 grain Speer which Elmer Keith recommended to me vs a 225 grain Bitterroot. The lighter bullet with more frontal area was always more effecive. Even the 210 nosler. Yet a heavier bullet with more frontal area but less velocity was much less effective! As John Taylor said many years ago about the .375, " It has a combination of speed and frontal arre that make it more effective than ordinary calibers," or something like that. The wound on a large animal with premium softs in a 375 or improved 375 is not like that from a 300 weathrby with fragmenting bullet. It would completely or nearly so destroy the heart, and you could fill up nearly a 5 gallon wash basin with congeled blood, but damage to ribs and shoulder was minimal or else I would not have used it. I have never seen anything die so quickly as with a high velocity 375 using Bitterroots. They expand to about 75 caliber and retain 95% weight even at 2,800 - 3,100 fps (300, 275 and 250 grain velocites.) Andy | |||
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So is that a temporary cavity, or a permanent wound channel?  | |||
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500grains, That's a temporary cavity. Dont you know it shrunk 1 mm post mortem? Andy  | |||
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Andy I couldn’t agree with you more. Some of these guys are try to apply the lessons learned before premium bullets and high velocity rounds. Now we have bullets that will stay together at velocities greater than 3000 fps and some like the GS custom HV and Barnes TSX work great at 4000fps. The rules have changed; all the theories and observations made with premodern ammunition no longer apply unless you choose to hunt with the venerable rifles of an earlier time. Dr B | |||
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fredj338: Fred, you are absolutely correct and I have to hang my head in embarrassment and say that it was, indeed, a 378 Weatherby that was involved. (Blame it on either a "senior moment" or sipping too much Canadian Club!) I think that the major asset of a 375H&H is the fact that it is such an easy cartridge to shoot. That, of course, improves marksmanship - and is the often cited reason for using the 375 H&H. I happen to think (from my own experience in shooting it and a one time trip to Africa for buff) that there is another reason as well. After all, as has been pointed out in this thread, buff are not shot at 300 yards. They are not even shot at 100 yards (if your PH trusts you) It is the solid feeling of comfort that a 375 seems to give. (I shot over 1500 rounds including replacing a stolen rifle before I ever saw Africa) I really enjoyed shooting the cartridge. I think those things add up when you look at nyati at fairly close range. I was carrying a rifle firing a cartridge in which I had full confidence -even though I had never seen a 375 H&H hit anything. (The 375 H&H dropped my buff and I even made the SCI record book {9th Ed} -even if I am #178) I do agree with TerryR that if you have no confidence in the 375 H&H - that a 416 might be better. Heck!I'll admit that If I had known beforehand what nyati looked like at 35 yards, I would have preferred an anti tank missile! | |||
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Andy you have a PM. I am back from a long Hiatus... or whatever. Take care. smallfry | |||
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Well DrB, I'll disagree. You are talking apples & oranges trying to compare a .375 to a .458. I still say for the increase in recoil, I would rather have a .416/.404 over ANY .375, especially at 25yds.  You push a .375solid along 200fps faster & it just leaves the animal faster. .375 softs, maybe they perform better, maybe not, depends on the soft. I would say 99% of the guys I know w/ DG experience will tell you a well place shot from a 40&up kill quicker than a hivel. .375, but hunt w/ what you want, it makes good stories around the fire.  BTW, Weatherby had this hivel. theory years ago, bu the bullets weren't up to it. Myabe when enough guys have hunted DG w/ a .375RUM or eq., we'll get add'l. data, but I'll stay w/ my .404jeffery. LIFE IS NOT A SPECTATOR'S SPORT! | |||
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fredj338 I might be comparing apples and oranges witch I did because many of us on this site a familiar with the 458 discussion. You are recommending apples and oranges. The original question was 375H&H vs. 375RUM. The answer is in a Rem 700 the 375 RUM Kills more effectively than the 375H&H. If you want to start changing the question then I say a 416wby kills much better than the 404Jeff and the 460wby even better, and then we can get even more off topic and say the 500A-square kills better than all the previously mentioned rounds. Dr B A great many people think they are thinking when they are merely rearranging their prejudices. (William James) | |||
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That's fine B, I only brought up the 42cal as equal in recoil to a .375RUm & better killers. The only thing 150-200fps more vel. in a RUM will give you is quite a lot more recoil. We choose to disagree. LIFE IS NOT A SPECTATOR'S SPORT! | |||
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Só, when the bullet flips it is undoubtedly the bullet's matter that does so! Hence your next little bit you have finally arrived at:
should rather read: So axial moment of Alf, suggest you read this again:
OWLS My Africa, with which I will never be able to live without! | |||
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Alf and others, I was taught by folks at Aberdeen proving grounds a simple methof for calulating rotational velocity in the english system of measurment. 1-12 inch twist is expressed in inches (feet). So is velocity. A bullet at 1-12 twist at 2,400 fps is revolving at 2,400 revs per second. A bullet at 2,400 fps at 1-10 is muzzle velocity times 1.2 = 3456 rev per sec, a big difference. A bullet at 1-14 is 12 divided by 14 = 0.85 muzzle velocity in feet per second = 2,040 rev per sec. the Greenhill formula is somehting entirely different, predicting what is minimum for stability in air. Andy | |||
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The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Hunting African Big Game Hunting 375 H&H vs 375 Rem Ultra --- which one to buy
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