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  #1  
Old 04-12-2005, 07:26 AM
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Thumbs up .338x57 MAI - First Range Report


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Initial testing of this wildcat cartridge have been completed. This cartridge is simply a 8x57 case necked up to .338 and fired in the Ackley Improved chamber. It was designed for use in the many available '98 Mauser surplus actions now available to us. Here is the load data, velocity & pressure report.

200gr. Nosler Combined Technology Ballistic Silver Tip
Remington 8x57 Nickel cases fireformed.
54.0 grs. Vihtavouri N-150 powder, CCI 250 primer
Avg muzzle velocity for 6 shots....2795fps
Std. Deviation MV ... 8.6fps
Avg chamber pressure......56,150 psia
Std. deviation ...............1660 psia.
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.338x57 MAI - First Range Report-mai-pressure-curves-ct-bst-200-54g-n-150.jpg  
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Old 04-12-2005, 08:46 AM
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I have a vz-24 that I was going to have done up in 338 Sabi, but this looks like an easier job with similar ballistics. Who made your reamer? Or did you use a standard 8x57AI Reamer and then run a 338 neck reamer through? Also, who made your dies etc. And what are the specifics on the rifle?
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Old 04-12-2005, 10:21 AM
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Quote:
Originally Posted by noyb72
I have a vz-24 that I was going to have done up in 338 Sabi, but this looks like an easier job with similar ballistics. Who made your reamer? Or did you use a standard 8x57AI Reamer and then run a 338 neck reamer through? Also, who made your dies etc. And what are the specifics on the rifle?
Dave Manson of Manson Reamers did the work. Hornaday custom die shop did the dies and they are nice. The rifle is a VZ-24, E R Shaw 26" S/S barrel bolted into a Hogue overmolded 98 Mauser stock. I am going to try to post a pic of the reamer dimensions.
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Old 04-21-2005, 10:59 AM
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Thanks. Going off of your initial load, it should be easy to get a 225 grain 'bushveld" load at 2400fps out of a pretty short tube. I think I'm gonna put this in a light kevlar stock and put a straw for a barrel on it and end up with a "heavy but light weight" mountain rifle. I ran after a bunch of Rosevelt elk 2 weeks ago, and when climbing mountains like that, every ounce helps.
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