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Hornady .338 Interbond V's SST

 
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  #1  
Old 11-27-2009, 07:29 PM
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Hornady .338 Interbond V's SST

Which is the best projectile for long range hunting out of these two out of a .338WM?

A. The Hornady .338 cal 225 grain Interbond at a listed B.C. of .430.

B. The Hornady .338 cal 225 grain SST at a listed B.C. of .515


I find it interesting that the smooth sided Interbond has a lower B.C. than the SST which has a canlure on it bearing surface. I would have thought that it would be the other way around? I wonder if Hornady has published this incorrectly?

The SST is cheaper and is listed as having a higher B.C. any one use them?
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Old 11-28-2009, 01:27 PM
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Re: Hornady .338 Interbond V's SST

I think the answer lies in "how far is long range"? I would use the interbond out to maybe 500 yds. and the sst at longer ranges. I'm not as familiar with the interbond, but the likely reason for lower B.C. is one or both of these two things. A different ogive and or
jacket thickness. All else being equal, a thicker jacket will lower B.C. because copper is less dense than lead. Also, a lower density "lead allow" core can lower B.C. for the same reason. (this would be as opposed to a pure lead core)....Rich
p.s. remember the formula for b.c. It's a combination of sectional density and bullet shape. Hope this helps.
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Old 11-28-2009, 03:05 PM
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Re: Hornady .338 Interbond V's SST

Since the 7mm Interbonds have crooked plastic tips and pattern like buckshot out of my 7mm RMs, I'd use the SSTs, if those two Hornady bullets are your only options.
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Old 11-29-2009, 02:08 AM
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Re: Hornady .338 Interbond V's SST

Also look at the 210 swift scirocco .507 BC. My 338 win mag shoots this one very well without a brake. Any heavier bullet and it kicks to much for me without a brake.
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Old 01-15-2011, 11:43 AM
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Re: Hornady .338 Interbond V's SST

I use the 139 SST out of my 7 mag, and the 225 SST out of my .338 win. The SST out of either gun will kill the crap out of anything you hit right. On the Texas sized deer I shot this year with a double lung and heart shot, the lungs were liquid and I noticed capillaries in the deers head were ruptured from the hydrostatic shock. That puts the animal down right now. Also the exit wound was only about big enough to get 3 fingers through. The only damage to the animal that I didnt intend was a broken rib on the exit wound. As far as accuracy; I get MOA out to 800 yards.
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Old 01-15-2011, 02:23 PM
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Re: Hornady .338 Interbond V's SST

I am looking in Hornady book #8. In the front of book where they have all the bullets listed it says b.c. .430, but if you go a specific cartridge it shows a b.c. of .515, also website shows b.c. of .515. Must be misprint in front of book.
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Old 01-15-2011, 06:43 PM
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Re: Hornady .338 Interbond V's SST

i think you'll find this is why the highest BC bullets have a secant ogive instead of tangent. they actually push the air off the side(bearing surface) of the bullet and then it comes back against the boat tail which helps it go through the air easier. i don't think the variences in the baring surfaces makes much difference in BC. maybe Bryan or one of the knowledgable bullet makers will chime in on this.
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