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.500 Jeffries necked down to a .30cal any info?

 
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  #22  
Old 03-03-2012, 10:15 AM
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Re: .500 Jeffries necked down to a .30cal any info?

Naw. the point is that many of our cartridges used a large Parent cartridge and they are not their parent cartridge, Just names of identification. If a person wants the fastest I'm pretty sure the 30 -378 still holds the record of over 6000 fps firing a bullet with a funny sounding name. Even Lazzaroni hit a dead end with their Warbird, the same as the wild cat enthusiasts and if adding more gun powder could accomplish any thing it would not be safe. substantial over bore is substantial over bore no matter how much more the powder charge weight is increased - Without a new gunpowder physics hit a dead end years ago in hundreds of small shops across the country without the need for a large sounding parent cartridge. It has good potential in larger diameter bullets which have not been discussed.
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  #23  
Old 03-03-2012, 12:03 PM
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Join Date: Dec 2009
Location: NW MT
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Re: .500 Jeffries necked down to a .30cal any info?

A friend of mine, that was a regular here. Shoots a 30-338 LAI, 177 GR.GS ,BC. 638, @ 3680 out of a 30'' Lija, punch that into your ballistic calc. It is a monster
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  #24  
Old 03-03-2012, 12:43 PM
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Location: martinsdale,montana
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Re: .500 Jeffries necked down to a .30cal any info?

i'm like ken where this case is going to shine is in the 338 and up. when i visited with marty he said they where getting 3500 with 250 hornaday bullets and a 27 in barrel. twisted pig (338 500) should be real cool to play with.
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  #25  
Old 03-03-2012, 01:19 PM
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Re: .500 Jeffries necked down to a .30cal any info?

Improved cartridges that have been enlarged for more powder capacity do shoot higher velocities most of the time but not all of the time and very often will not shoot as high a velocity with its lighter bullets than a smaller cartridge of the same caliber. The Pegasus uses basically a beltless 378 cartridge and gets over 3500 fps on a lot shorter barrel with a bullet that is not known in reloading data as a higher velocity manufacturer. The 500 A-Square is an interesting example It is a little more powerful than the 500 Jeffery (75 fps faster with a 65 grain heavier bullet) I don't think that I will find too many cartridges bases off of a 500 A Square because they have the 460 as a parent cartridge. so I am still lost as to why a 500 Jeffery is of any advantage. What can be improved on over other existing cartridges. The 500 Jeffery certainly doesn't have any edge in and in the example above a loss over what many of us already have sitting in our vaults as a parent cartridge.

Don't get too google eyed over a head stamp and take it easy on pressure there is no magic but there are more than a few with life changing injuries. Friends do not let Friends shoot excessive pressures!
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