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Old 05-08-2011, 03:54 AM
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375 wildcats?

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Are there any based off the Winchester magnums? The "standard mags" I mean. Or one based based off the 416 Remington/458 Lott? The seem like obvious choices for 375 wildcats to me. Seems like they would fare well against both of the Weatherbys.....

I'm also wondering about a 30-06 or a 350 Remington mag necked to a 375. One of these choices would be the most logical for me here in NA.
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Old 05-08-2011, 05:36 AM
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The 350 Rem Mag has been necked down quite a bit. The late G.O. Ashley favored the 8mm-350 Rem Mag.
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Old 05-08-2011, 07:24 AM
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The .458 Lott is a full length magnum brass just like the .375 H&H, .300 H&H, .375 Weatherby, .375 Ackley Improved... If you are going that length then the sky is the limit and they have all been done before so take your pick. If you are going short like the .300 Win mag pretty much the same thing applies. Honestly, there is nothing new on these old cases, they have been necked up, down, radiused, blown out, trimmed back, you name it, it has been done. Or you can invent your own, so what if it has been done before. My .358 HDH is nothing new (the .358 WSSSM also known by a hundred other names, HDH being just one), but since so many other versions need the designer's permission to use 'their' reamers, it was easier to do it myself, same thing, just a different name.
Look in any of the wildcat books, Cartridges of the World; Wildcat Cartridges, Vol I and II; Encyclopedia of Cartridge Design (I think that is its name), P. O. Ackley Reloading manuals... the list it too long to type it all, but they are all pretty much in one of these books and if you find something similar that will give you a good starting point, both in your build, reamer design, and loading data. Or contact Dave Manson of Manson Reamers and talk to him. He has thousands of designs and is a great source of information. The WSSM, WSM, RSAUM, RUM... they all too have been take up, down, and sideways, so you have a lot of groundwork already laid for you.
The .30-06 has been taken everywhere from .14 to .40 that I know of with .40 being about as big as you can go and still have a shoulder for headspace, and at .40 it gets a little iffy IIRC, so I know it has stopped at .375 also, probably in the Whelen series.
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Old 05-08-2011, 01:09 PM
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I've always had an interest in the .375 Whelen. Lots of frontal area and lots of 270 & 300gr bullets to use in it. I have a .375 Win, but the '06 case necked up adds some serious performance to a heavy .375 bullet. I'm sure a very nice woods deer load could be made using the Barnes Original 255gr too, with a downloaded velocity of 2300-2350 FPS or so.

I know you're curious about a .375/.350RM, but another rather new wildcat, the 9.3 B/S (Barsness/Sisk) also seems very interesting. There are now some really good 250gr 9.3mm bullets (A-Frame and Accubond) and the added diameter allows them to not be seated as deeply as the 250gr .358 in the original giving more capacity and added velocity as well. Some excellent 232gr bullets and all the great 285gr ones available would make this a great round IMHO.



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Old 05-08-2011, 03:01 PM
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Sounds like you are talking about a 375 Ruger to me.

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Old 05-09-2011, 07:22 PM
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Might want to look @ the 375 Taylor, 375 H&H ballistic's in a 06 case length. Just a 338 necked up
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Old 05-11-2011, 05:07 PM
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Thanks for the sites, Tnhunter. The BS really catches my attention.
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Old 05-14-2011, 04:47 AM
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A few of us have been discussing Sunwheel29‘s thread on “internet jockey’s"
being spoofed on TV. I don’t know about TV gun shows as I don’t have cable television.
I do know there is an effort by gun writers in general to trivialize and degrade the “gun boards" which is understandable.

Snow and I have been comparing the introductory articles of the Winchester Model 71 and the 348 cartridge to those of the 356 Winchester and its Model 94 Big Bore rifle. The January 1936 blurb for the rifle and cartridge was 27 words long. The article in the February issue of the Rifleman was short but extensive. The article included stock dimensions and criticism along with praise.

Gun writers of old would be shocked at today’s gun magazines and the acceptance of the readers of shallow and miss-leading technical data.
While this thread has not generated a lot of posting it has caused a bit of discussion, “behind the scenes.”
In the May 1965 issue of Shooting Times Dave Wolfe (father of Handloader and Rifle magazines) and George Nonte wrote an article titled “Fine, Feral Felines” about wildcats based on the 350 Remington Magnum. There is a pictured line of wildcats based on the cartridge including .224”, .228” .243“, .257”, .264”, .277”, .284”, .308”, .323”, .338”, the standard .350”, .375”, .410”, .430” and .450”.
Loading data is included for the .264”, .284” and the .308” wildcats. The article is five pages long and more informative than a feature article in one of today’s gun magazines.
I don’t know whose fault this is, liability is probably the key issue along with an inattentive audience who seem to be satisfied with a row of stars to inform them of the attributes of the new shooting irons.
I am reading an introductory article on a new rifle today and there are no stock dimensions. There are a number of addresses directing me to the various makers of aftermarket products.
I guess we could say there is no need for real articles today, everything has already been tried.

Last edited by William Iorg; 05-14-2011 at 07:01 AM.
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Old 05-14-2011, 12:51 PM
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The 375 Whelen is an exceptional cartridge. I had a Mauser action rebarreld and chambered for the Whelen. I had no entention of using jacketed bullets for the cartridge, since cast would do everything I wanted.
I found it hard to come up with a bad load using any of the standard mold offerings from RCBS, Lyman, Saeco and NEI.

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