The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Medium Bore Rifles 358 Norma M blown out to 375Go | New | Find | Notify | Tools | Reply | |
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Is there such a thing today or from yesterday,many thanks for any news. Any figures for say 300 grains of pill? Posts: 87 | Location: Victoria Australia | Registered: 07 September 2002 | ||
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375 chatfield taylor . 300gr at 2500 ... and with the 375 ruger, its a waste of time opinions vary band of bubbas and STC hunting Club Information on Ammoguide about the416AR, 458AR, 470AR, 500AR What is an AR round? Case Drawings 416-458-470AR and 500AR. 476AR, http://www.weaponsmith.com | |||
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| One of Us |
The correct term is ".375 Durham Magnum" and I agree, this and the .338-375 or "Chatfield-Taylor" are now even more superfluous than they were before the .375 Ruger was introduced. | |||
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Since a 308Norma case only gains a couple grs of capacity over the 30-338 I would assume a 375-358Norma would gain the same amount over the 375Chatfield/Taylor. That puts both of them about 10grs smaller than the 375Ruger. Can a 375-358 be done sure. I'd call the velocity maybe closer to 2575-2600 fps. The 375Ruger would be far cheaper in the long run. Hornady calls factory 300s as 2660 fps from a 24". As usual just my $.02 Paul K | |||
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Yes, the .375-338 (which is essentially identical to a ".375/.358 Norma Magnum", case capacity being negligibly different) works well if your magazine length is limited. It is a fraction shorter than the .375 Ruger and the magazine, without alteration, will hold and feed one more of the .375-338 than of the slightly fatter Ruger round. So, for certain actions, it is a viable choice. It will run about 100 fps behind the Ruger and perhaps 50 fps behind the H&H if loaded to the same pressures. If building one, use any chamber template you choose -- it will be a wildcat, after all. Brass is most economically made from .338 Win for any version you might choose. | |||
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Thank you Stonecreek,there are some positives in your reply with the magazine capacity etc. Now what about the 'other' way around in necking 375 (H+H ) down to 35 caliber? I am aware of the 35 STA but not sure of the platform its built on,but a H+H case would send a 35 missile burning IMO. Posts: 87 | Location: Victoria Australia | Registered: 07 September 2002 | |||
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A 358STA is a 358-8mm mag with a slight shoulder change. nDue to reduced body taper the STA would have more capacity than a 358-375H&H. OAL is 3.6" so long mag box is required. I sold the STA I had and bought a 358Norma. Other than recoil I gave up very little. My 24" STA accurate load was 2767 with a 250. My 19.75" Norma gives me 2700 with factory 250s. As usual just my $.02 Paul K | |||
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I have the 358 NM being built,but am exploring another build 'down the track' I am rather interested in the 35 calibre Posts: 87 | Location: Victoria Australia | Registered: 07 September 2002 | |||
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If I had a 358N I sure wouldn't build a STA. But if I did I would not do it with less than a 26". I found that a lot of the hype for the STA went hand in hand with the STW. Very hard to reach the published velocities that Simpson first published. As usual just my $.02 Paul K | |||
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The .375H&H WAS necked down and a proprietary cartridge produced many years ago, this was the .350 Griffin and Howe, which was a forerunner of the .358 STA, original long Ackley and so on. I would prefer a Ruger case necked to .358, aka the old .35 Newton to any of these. | |||
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After being given a 30 Newton case I can see why it has a following. Would have made a lot more sense than the various 264-338wmag syle belted magnum. As usual just my $.02 Paul K | |||
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The .35 G&H, as it was known, has just a bit more powder capacity than the .358 Norma, but of course it requires a 3.65" magazine. Some shooters would laud its advantage as the slick feeding of the tapered, sloping shouldered case. I think, however, that a better variety of bullets for large game is available in the .375" caliber than in the .358" caliber, so I'm not sure what is to be gained over a stock .375 H&H. | |||
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