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Old July 9, 2000, 03:31 PM   #1
STEVE M
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Can anyone give me the specs. for this? What is the parent case, usual loading (weight/velocity) ect. I haven/t been able to find the particulars anywhere.
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Old July 10, 2000, 02:09 AM   #2
Paul B.
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Steve. It took me a while to find this. The .460 G&A is based on a .404 Jeffery, necked up to .458 and fireformed. The round was developed by Tom Siatos and Jack Lott of GUNS & AMMO. Their purpose was to get more velocity than the .458 Win. Mag. and less than the .460 Weatherby, which they felt was too high.
Apparently the brass is Berdan primed; at least the brass used in the article was. Perhaps some of the suppliers of .404 Jeffery brass now make it with standard boxer primers.
With 500 gr. bullets he got good accuracy with 87.0 gr. IMR4064 and H-4831 at 95.5 gr., although he did work up to 105.0 gr. of H-4831. (IMR-4831 had not been released to the market at this time.) He also said the cartridge would perform well with IMR 3031, 4320, 4350, and similar powders. Max load with IMR-3031 was 91.0 and with IMR-4350 was 105.0 (compressed) These were with the 500 gr. bullet.
Trim to length was 2.86". No over all length was given.
If you can chase down a copy, this data is from the February issue of GUNS & AMMO. 1971.I normally do not give load data on the forums, but I have made an exception as this is an oddball cartridge that is difficult to find anything on. I can't even tell you who is allowed to make you one, as it is a proprietary cartridge, owned, I believe by GUNS & AMMO, and they restrict who can build one. This would make it a very expensive proposition, I'm thinking, but where there is a will, there is a way.
I believe the final velocity decided on was about 2350 FPS.
Anyway, this gives you something to go on.
Paul B.
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Old July 10, 2000, 06:49 AM   #3
STEVE M
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Thanks Paul. I thought it was a little more common than that. It doesn't sound like a project that I would want to tackle.
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Old July 10, 2000, 01:20 PM   #4
Paul B.
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You could do the same thing by getting a .460 Weatherby, and loading it down to the G&A's specs. When I first read the article, I wanted one. Still do. One idea, and probably the least expensive way to go. get a Ruger #1 in .458 Win. Mag. and have it rechambered.
Paul B.
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Old July 10, 2000, 02:31 PM   #5
NJW
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Paulb,

I am the one with the #1H rechambered to .460 Weatherby. I haven't treid any of the lower loads out of mine but I have seen the data for it so it would be easy to do.
I have been playing with lighter bullets in it though. I am trying a 300 gr JHP that shoudl be going out at 2,900 fps. I am looking for something that shoots a little flatter than the big 500 gr. round nose.

NJW in AZ
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Old July 11, 2000, 01:42 PM   #6
Paul B.
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NJW. I suggested loading down the .460 as an alternative to what appears to be a very expensive proposition. Jack Lott always felt that the .460 Weatherby at full power was too much of a good thing, not so much recoilwise, but at the point where the bullet struck. In one article, he describes where a solid literally turned into confetti on a Cape Buffalo's spine. It killed the animal, but that's not how a solid is supposed to behave.
I'm still looking for a #1H in .458 Mag. Converting one into a .460 sounds interesting. Maybe I'll have to look for two of them. I need no excuse to buy a #1 of any kind.
I'm also looking for another #1B in 30-06. If Saturn Sports in Sparks Nevada is still in business, they make a blown out .300 Weatherby or H&H magnum, that gives the .300 R.U.M. a run for it's money. I think that either it, or the R.U.M would make a great longe range single shot rifle round.
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Old July 11, 2000, 06:07 PM   #7
Glamdring
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You could use the 416 Rem brass to make a full length 458 [458 Lott?] which is a fairly simple job I believe.

I would contact Ross Seyfried care of Rifle or Handloader [formerly of G&A] for more info on the 460 or the gunsmiths at Gunsite should be able to point you in the right direction.

You could also use the new Rem ultra mag brass for a 458 it is basically a 404 jeffrey with rebated rim to fit standard bolt faces.
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Old July 11, 2000, 06:37 PM   #8
Hueco
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I was going to suggest the 458 Lott too, Glamdring. i really want to rechamber my #1 458 to Lott. Nice thing is, I could still use 458 Win loads/brass.


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