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  #1  
Old 08-07-2004, 07:19 PM
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BULLETS FOR A .264 caliber?


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First of all people of the Beartooth Forum, is there anybody that makes a 160, 170 or 180 grain bullet for the .264 caliber?

I am contemplating another wildcat rifle in the 6.5/300Win Short Mag. I would like to get my hands on some heavier bullets for this wildcat.

I was almost positive that a 160 grain bullet was made years ago, however my memory has failed me on this issue. I would also like to know the sectional density of such 160, 170 and 180 grain bullets. Also what their BC would be for each bullet weight. Thank You!
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  #2  
Old 08-07-2004, 07:34 PM
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Hornady used to make a 160 Round Nose- dunno if they still do.
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  #3  
Old 08-07-2004, 08:03 PM
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Sierra lists a "160 gr. SMP Pro-Hunter #1750" bullet. This is a flat based semi-spitzer.
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  #4  
Old 08-07-2004, 08:51 PM
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Sectional density is easy to figure. Bullet weight in grains / 7000 / bullet diameter in inches squared. So for a 160 grain .264 bullet, 160 / 7000 / .264 / .264 = .328. Ballistic Coefficient isn't so easy to figure.

Hornady still makes the 160 grain round nose, although it was originally designed for the old European cartridges like the 6.5 x 55 Swede and I'm not sure how it stands up to magnum velocities. B.C. is .283. Hornady's web site is dreadfully slow, but you can look it up here. https://www.hornady.com/shop/

The B.C. of the Sierra 160 is .353 above 2450 fps.

If you want to calculate the B.C. of a bullet you can try your hand here. I didn't say it's easy. http://www.eskimo.com/~jbm/ballistics/drag/drag.html

Bye
Jack
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  #5  
Old 08-08-2004, 01:09 AM
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Another option for bullets would be to contact a custom bullet maker. They can make what you want, albeit at a higher than "off the shelf" price. Since I started swaging bullets it has been a very eye opening thing to see just how many different weights/styles of bullets can be made with simple die sets. With more elaborate equipment you can make what you want. Don't get me wrong, the equipment is not inexpensive, but there are more folks than one who want what you want...so there's bound to be someone out there ready to fill the order.
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  #6  
Old 08-08-2004, 07:55 AM
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Quote:
Originally Posted by 2Bits
First of all people of the Beartooth Forum, is there anybody that makes a 160, 170 or 180 grain bullet for the .264 caliber?

I am contemplating another wildcat rifle in the 6.5/300Win Short Mag. I would like to get my hands on some heavier bullets for this wildcat.

I was almost positive that a 160 grain bullet was made years ago, however my memory has failed me on this issue. I would also like to know the sectional density of such 160, 170 and 180 grain bullets. Also what their BC would be for each bullet weight. Thank You!
I have a partial box of Norma 160 RNSP. These are wonderful penetrators.....if you are interested, I would part with them...Mike
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  #7  
Old 08-08-2004, 07:58 AM
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Sierra and Hornady both make 160 gr .264" bullets, I just ordered both brands from Grafs. I believe that Barnes also makes an "Original" style in that weight as well.
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  #8  
Old 08-08-2004, 08:42 AM
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Barrel twist and bullet length are more closely related than weight...some of the HBBT 140-144gr. offerings are longer than the 160gr. RN or SMP and their shape gives a much higher BC. OTher than custome made, the 160's are about the heaviest...the longest I've used were from Lost River (belive they are one-line as Lost River Ballistics)..not as heavy, but with the ling sleek point and boat tail, they are longer. The BC of the noraml 140gr. HPBT's is listed as .526...that does tend to hold onto velocity pretty well.

Hornady use to be the supplier for some very heavy weight bullets in standard diameters...most of the old Barns QT wildcats had Hornady bullets avaialbe. The old system was that if you ordered (and pre-paid) enough (and 200,000 comes to mind as the old-time minimum), they'd make them.

Haven't used the Sierra 160gr. SMP but have used a good number of the Hornady 160gr. Designed more for the small cased military rounds, they do a good job at lower velocity...keep impact velocity below 2600-2700fps and they work fine. Are darned few rounds that would give you bame impact speeds above 2700fps unless you shoot them at spitting distance...and if that is the case, a 6.5 proably isn't the best choice.
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