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338-8Mm Or 338X57?

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#1 Milsurp Bob

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Posted 11 October 2011 - 06:59 PM

Howdy all.
So just wondering if anyone here has done or knows of anyone that has necked up an 8 x 57 to a 338?
Seems like a neat cartridge and would be even neater in a nice sporterized GEW 98.

And it seems to me that the question isn't why, but why not :D .

#2 gun nutty

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Posted 11 October 2011 - 10:12 PM

I don't know that there would be a practical reason for a .338X57. Better bullet selection?

#3 strait shooter

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Posted 13 October 2011 - 08:50 PM

I built a 8mm-308 once!! ..It was a waste of time..Shot great but it was just a can I do it gun..sold it..Built a 8mm-300win mag
more than enuff gun for any USA animal...To your Q ? yes it can be done but better carts out there as wildcats...JMOO..Dave

#4 ken98k

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Posted 13 October 2011 - 10:45 PM

I don't know that there would be a practical reason for a .338X57. Better bullet selection?

338x57 might be a good candidate for a rebore when trying to save a shot-out sporter barrel.

#5 AzRednek

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Posted 30 October 2011 - 11:58 AM

There was a common wildcat cartridge in the 50 and 60's nicknamed the "Poorman's Magnum". It was reverse of your idea. It was a 338 mag case necked down to 8MM. It was a way to magnumize a surplus rifle without a new barrel. Unlikely today one could find a gunsmith willing to ream the chamber because of the possible liability.

#6 lemski4

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Posted 30 October 2011 - 01:39 PM

I thought about kind of the same thing only in 358 cal, 35x57?

#7 donmarkey

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Posted 08 December 2011 - 08:01 PM

It's not a new idea. Here's a little info about it. http://www.chuckhawk...338_OConnor.htm

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