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  #1  
Old 10-22-2003, 06:19 PM
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458 WSM Rifle and ammo picures


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I just built a 458 WSM and thought it might be of some interest here. The rifle weighs 6.5 lbs and is built on a Winchester Model 70 Classic. The Barrel is a PAC-NOR chrome-moly 16.25" long. You can see it by clicking on the link below and then going to the photo gallery.
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  #2  
Old 10-23-2003, 04:06 AM
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Yalza! Good hog gun.

What does she headspace on?
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  #3  
Old 10-23-2003, 12:08 PM
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Question What Does She Do?

Quote:
Originally Posted by jnrifleworks
I just built a 458 WSM and thought it might be of some interest here. The rifle weighs 6.5 lbs and is built on a Winchester Model 70 Classic. The Barrel is a PAC-NOR chrome-moly 16.25" long. You can see it by clicking on the link below and then going to the photo gallery.
Nice!

Got any performance numbers on the new round?

Thanks!
  #4  
Old 10-23-2003, 01:25 PM
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The case headspaces on the shouder just like any other bottle necked rifle cartridge. The load development is slow going right now. With the 16.25" barrel, I have the 400 gr Barnes SSP up to 2100 fps or so. A longer barrel will certainly produce higher velocitys. I think it will equal or beat 458 win mag preformance, in equal length barrels. I have 300 and 350 gr test loads to shoot, but now I just need time. I just got a Rem 660 action to build the next one on.
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  #5  
Old 10-23-2003, 01:59 PM
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Yikes! - anybody ever shoot it twice?!?!?!?
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  #6  
Old 10-23-2003, 02:21 PM
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I fervently hope everyone has the best ear protection available and the local fire dept standing by to protect against the muzzle flash!
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  #7  
Old 10-23-2003, 04:26 PM
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John,

I'd be interested in seeing the specs on the cartridge.

Lobo in West Virginia
  #8  
Old 10-26-2003, 02:28 PM
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So far I haven't had the time I need to know all the details I want to know. The OAL case length is appx 2.1" the neck is about .4", the pressure is about 55,000 psi according to Quickload. The headspacing is the same as the 300 WSM. The case body is the same as the 300 WSM. I seat the 400 Barnes SSP to 2.82". The 300 Nosler Partition and the 350 HDY FP are 2.538". The barrel is only 16.25", so the velocitys are not that great sound ing. But I bet it woud beat the 458 win mag in an equal length barrel contest. The 400 is up to 2100 fps, and I still need to fire the test loads with the other bullets. I shot it today at an 8" thick piece of very dense glue lam partical beam, ( I do not know the offical name of the beam), and the 400 gr SSP went through it and another inch of Doug Fir behind it. The bullet lost 125 grs of weight in the process, and the expanded diameter was over .9" mean average. The rifle really lets you know you shot it. I am building one on a Rem 660 next which will knock 2" off the OAL Rifle keeping the same LOP and barrel length. The dies are being made by hornady, they can supply you with a print. The name is "458 NOVESKE". I named it that for headspace saftey reasons, at the advise of Hornady.
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  #9  
Old 12-10-2003, 08:40 PM
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?? Kills on both ends??

I bet it kills on both ends, scope eye, nose bleed, ear buster, how can I get one? The only thing better would be a 50 BMG pistol, I saw made out of a Barrett 82.
  #10  
Old 12-10-2003, 08:47 PM
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Quick update, The 300 Nosler Partition Protected Point is doing 2577 fps with the 16.25" barrel. If you want one of these, I will build you one. The price is variable depending on the action, stock, ect, but the $900 to $1200 range would get you a shotting rifle. The dies are $98.50 from HDY, brass is fierformed from 300 WSM brass. I can supply it for $1 per case.
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  #11  
Old 12-28-2003, 04:27 AM
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458 N

I see no problem with this gun. Sounds great. I'm seriously considering this caliber. I have a 458 in a CZ and would welcome a shorter, handier rifle with about a 20" barrel instead of the 25.5" barrel I now have. Sounds like a much handier weapon in the brush. Especially when your buddy just shot a big porker that went in the heavy brush squealing at 45 Db. If he isn't dead he is now going to collect on that bill you owe him. Bandito
  #12  
Old 08-27-2006, 09:38 AM
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JN-
Dreamed this up last night and jumped on the forum this am to find you are already there. Great stuff.

Notiing that the 2.1 inch case length is the same as the 45-70, Im thinking that if the bullets were seated to 2.55 LOA it would be a strong competitor to hot-loaded 45-70's. It has more case volume, and would surely produce a meaningful increase in V. It probably could be made to feed through the 95 Marlin.

Your website link isn't working for me; not sure why.

Has anyone on the forum heard of this round being used in the 95?

Great stuff JN!
  #13  
Old 08-27-2006, 09:57 AM
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I just noticed the date of JN's first post- almost 3 years ago! Duh.

Any new news?

RG
  #14  
Old 08-27-2006, 05:39 PM
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Quote:
Originally Posted by jnrifleworks
Quick update, The 300 Nosler Partition Protected Point is doing 2577 fps with the 16.25" barrel. If you want one of these, I will build you one. The price is variable depending on the action, stock, ect, but the $900 to $1200 range would get you a shotting rifle. The dies are $98.50 from HDY, brass is fierformed from 300 WSM brass. I can supply it for $1 per case.
Here we go again. A business joined just advertise a product.

This thread is locked. If SPAMING continues you will be banned.
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