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458 Sabots

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19 July 2002, 13:26
QSL
458 Sabots
Gents,

Does anyone know of a bullet maker that makes a sabot for a 458 slug?

I know the slug would have to have a smaller diameter than 458.

This slug would hopefully weight in at 350 plus grains. Have a max length of a normal 400 grainer. Looking for a flat nosed all lead slug that could be driven to 2150 fps.

Trying to achieve 3900 ft lbs in the 45/70.

This may be just wishful thinking but maybe one of you may know of such a combination.

Thanks,
Roger
20 July 2002, 09:04
<chevota>
Last year I looked for a sabot in 458 to use a 30 or 357 slug. Seemed reasonable to me, but no one made one. I guess there isn't much market for goof-off experiments. If you find any let me know, I'd still like to try it.

In a modern rifle like the Marlin 1894 lever, unofficially rated at 43,500psi, 4000+ftlbs is obtainable. From all the data I've gathered the 300gr jacketed bullets with RE-7 are where the most muzzle energy is in the 45/70. Of course as bullet weight goes up, power goes down.
If and when I get my Crony fixed I'll post velocity results from experiments in my 22" bbl rifle.
20 July 2002, 05:59
<Kimmo E>
I have a catalog were 45cal sabot with .38 180gr xtp(hornady) is listed probably intended for blackpowder.
20 July 2002, 13:23
QSL
Chevota, Kimmo,

Thanks for your info.

Chevota, if you do manage to get the needed velocity out of the load you have, let me know.
I would experiment with this to achieve the 3900 ft. lbs needed for the legal requirements in Zim.
This kind of puts the 45/70 on par with a 375 at short range.
You can E-Mail me at mag4570@hotmail.com
You see, I do plan on winning the raffle. HI
Thanks,
Roger
20 July 2002, 20:44
<chevota>
Ok, now I see what you're up to. Where I live there is a similar law for deer, I think it's 1000ftlbs at 100yards. But if the factory rating for the cartrage you want to use does not meet that then it is illegal reguardless of what you hand/custom load. So check the rules. If they just want published data then check the reloading books. My Speer #10 book only shows data for a 400gr jacketed, but max listed is 2178fps, that's about 4200ftlbs.
20 July 2002, 20:50
<chevota>
Kimmo E:

That's where I got the idea in the first place, but I wrote two sources for those a while back and they said the diameter wrong. I can't remember if it was too big or too small. But like many things in life, just because someone, or everyone says it can't be done, doesn't mean it's so. Maybe I should try requesting a sample.....
21 July 2002, 03:57
<Kimmo E>
Probably cant they stand that velocity you want but maybee a light training/smallgame round.
They are really cheap so it might be worth a try?

dia .452?

Kimmo