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

9.3x57
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Reged: 22/04/07
Posts: 5521
Loc: United States

Re: Big Bore bullets--sectional density vs velocity
18/12/09 01:24 AM

I have to read this one. Sounds like a good article.

Is he saying that sectional density by itself is a reliable predictor of penetration?

OR is he saying that with today's current crop of Premium bulllets {hopefully specified} it is.

Reason I ask this is that sectional density is NOT by itself a reliable predictor fo penetration.

Two bullets come to mind; the Hornday .264/160 and the .308/220. Both are very long for caliber, but both are realtively frangible.

Others in past literature come to mind; Bob Hagel's poor results with the L-O-N-G .333/300, etc.

Since starting my testing program years ago, I no longer will make a prediction of penetration based purely on SD. A frangible long-for-caliber bullet may penetrate far less than a stoutly constructed lighter-for-caliber bullet.

Haven't read the article, but it sounds like an interesting one. Gotta get it. Thanks for posting RIPP.

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Subject	Posted by	Posted on
Big Bore bullets--sectional density vs velocity	Ripp	18/12/09 01:10 AM
Re: Big Bore bullets--sectional density vs velocity	Paul	18/12/09 08:00 PM
Re: Big Bore bullets--sectional density vs velocity	chuck375	28/12/09 01:43 PM
Re: Big Bore bullets--sectional density vs velocity	DarylS	29/12/09 05:12 AM
Re: Big Bore bullets--sectional density vs velocity	DarylS	10/01/10 02:22 AM
Re: Big Bore bullets--sectional density vs velocity	9.3x57	29/12/09 01:25 PM
Re: Big Bore bullets--sectional density vs velocity	cooch	30/12/09 02:16 PM
Re: Big Bore bullets--sectional density vs velocity	9.3x57	31/12/09 01:06 AM
Re: Big Bore bullets--sectional density vs velocity	chuck375	10/01/10 01:40 AM
Re: Big Bore bullets--sectional density vs velocity	JabaliHunter	10/01/10 02:22 AM
Re: Big Bore bullets--sectional density vs velocity	Der_Jaeger	10/01/10 05:55 AM
Re: Big Bore bullets--sectional density vs velocity	chuck375	18/01/10 03:45 PM
Re: Big Bore bullets--sectional density vs velocity	Ripp	29/12/09 02:48 PM
Re: Big Bore bullets--sectional density vs velocity	tinker	29/12/09 03:47 PM
Re: Big Bore bullets--sectional density vs velocity	9.3x57	30/12/09 12:37 AM
Re: Big Bore bullets--sectional density vs velocity	458ONLY	30/12/09 12:18 PM
Re: Big Bore bullets--sectional density vs velocity	9.3x57	18/12/09 01:24 AM
Re: Big Bore bullets--sectional density vs velocity	bonanza	18/12/09 02:00 AM
Re: Big Bore bullets--sectional density vs velocity	9.3x57	18/12/09 03:29 AM
Re: Big Bore bullets--sectional density vs velocity	Ripp	18/12/09 02:10 AM

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