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.338RUM Ackley Improved vs .338 EDGE

 
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  #1  
Old 08-18-2006, 07:20 PM
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.338RUM Ackley Improved vs .338 EDGE

Hi Folks,
I've been kicking around some LR rifle ideas and came across a listing (Midway) for a .338 RUM Ackley Improved.

I am just curious if this might be a different way (i.e. fireforming .338 RUM brass vs necking up .300 RUM cases to .338) of arriving at .338 EDGE powder capacity?

Thank for the input,

HBB
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Old 08-19-2006, 06:31 AM
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Re: .338RUM Ackley Improved vs .338 EDGE

I don't think so. Shawns cartrige is a necked up and improved 300 RUM, which is originally longer to the shoulder than the 338 RUM. They would be very close though.
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Old 08-19-2006, 06:49 AM
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Re: .338RUM Ackley Improved vs .338 EDGE

shawn's edge is not an improved version of the 300 RUM case, just pushed out to 338. i would go with the edge over a 338rum imp because of brass. the 300 has choices for brass other than remington plus you don't have to fireform.if you don't mind fireforming, i'd go with the 33/300 improved before i would go with a 338rum imp.
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  #4  
Old 08-19-2006, 07:22 AM
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Re: .338RUM Ackley Improved vs .338 EDGE

What is the powder capacity of the .338Rum Imp. and what shoulder does it have?
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Old 08-19-2006, 07:52 AM
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Re: .338RUM Ackley Improved vs .338 EDGE

If the reamer I saw listed has the usual Ackley 40 degree shoulder it should have roughly 4%-6% more powder capacity than the parent round.

Thanks for the input,

HBB
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  #6  
Old 08-19-2006, 01:24 PM
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Re: .338RUM Ackley Improved vs .338 EDGE

sorry, my mistake.
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  #7  
Old 08-19-2006, 07:06 PM
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Re: .338RUM Ackley Improved vs .338 EDGE

That sounds pretty good,fireforming is not a big deal.You may be on to something good with this Imp. case... [img]/ubbthreads/images/graemlins/grin.gif[/img]
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