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Shooting & Reloading - Mausers, Big Bores and others >> Muzzleloaders & Blackpowder

DarylS
.700 member

Reged: 10/08/05
Posts: 27731
Loc: Beautiful British Columbia, Ca...

Re: .72 ML energy
20/04/07 06:16 AM

Bill - with a hand held calculator, you can easily compute FPE for any load you wish.
: bullet velocity X bullet velocity X bullet weight(in grains) DIVIDED by 450240 = FPE Note the bullet diameter does not enter into this formula & that the formula greatly magnifies value given to velocity. By this formula, the .22-250 with 55gr. bullet at factory velocity of 3,650fps produces almost 200 fpe more than the .45/70 black powder load used in the 1870's. That .45/70 black powder/lead bullet was one of the preferred buffalo ctgs. for shooting those massive critters out to 300 and even 400 yards. Something is wrong with the math - it just doesn't add up.
: Anyway, there's the formula and sometimes it is fun to see what the numbers are. 450240 is a constant and converts weight in grains x vel squared to foot pounds of energy.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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Subject	Posted by	Posted on
.72 ML energy	BillfromOregon	11/12/05 06:48 AM
Re: .72 ML energy	mehulkamdar	15/05/07 09:49 AM
Re: .72 ML energy	Plains99	01/06/07 12:23 AM
Re: .72 ML energy	DarylS	01/06/07 10:47 AM
Re: .72 ML energy	pjb	02/06/07 03:13 AM
Re: .72 ML energy	DarylS	20/10/06 11:48 AM
Re: .72 ML energy	Dphariss	11/12/06 05:18 PM
Re: .72 ML energy	DarylS	27/12/06 12:36 PM
Re: .72 ML energy	BlainSmipy	27/02/07 06:16 AM
Re: .72 ML energy	bonanza	27/02/07 01:03 PM
Re: .72 ML energy	Marrakai	27/02/07 09:40 PM
Re: .72 ML energy	bonanza	28/02/07 12:29 AM
Re: .72 ML energy	DarylS	20/04/07 06:16 AM
Re: .72 ML energy	DarylS	11/12/05 07:30 AM

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