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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles

Will
.333 member

Reged: 04/02/03
Posts: 303
Loc: Kansas

Re: 380 grain in .375, penetration vs. .458 / 500 gr.
23/12/04 09:53 AM

Calculate the Penetration Index and find out!

PI = (KE)(SD)/(100 Af)

where KE is bullet knitic energy, in ft-lb, (MV^2/7000(2G))
G=32.17
V= bullet velocity in fps,
M= bullet mass in grains
SD = sectional density
Af = bullet cross-sectional area

The 380 gr. even at 2250 probably has a greater PI than the 500gr. 458, which isn't too whippy in the first place.

--------------------
_________________________________________________
Bill Stewart

Once you have been amongst them, there is no such thing as too much gun.

Post Extras

Entire topic
Subject	Posted by	Posted on
380 grain in .375, penetration vs. .458 / 500 gr.	ATHiker07	22/12/04 12:04 PM
Re: 380 grain in .375, penetration vs. .458 / 500 gr.	mikeh416Rigby	22/12/04 01:26 PM
Re: 380 grain in .375, penetration vs. .458 / 500 gr.	bonanza	23/12/04 01:07 AM
Re: 380 grain in .375, penetration vs. .458 / 500 gr.	ATHiker07	23/12/04 08:55 AM
Re: 380 grain in .375, penetration vs. .458 / 500 gr.	Will	23/12/04 09:53 AM
Re: 380 grain in .375, penetration vs. .458 / 500 gr.	atkinson6	25/12/04 08:54 AM

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