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Berger Jacket Thickness

 
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  #8  
Old 12-14-2011, 10:47 AM
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Re: Berger Jacket Thickness

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Originally Posted by Gene View Post
J4 is a division of Berger. They produce jackets only, and these are sold to bullet makers. The thickness may be proprietary. Their "hunting" bullets have thinner jackets than "target" bullets, to preclude break up in flight. As far as I know, Sierra is the only other manufacturer of jackets.
That's how I know they measure .012" Corbin also makes jackets but not for every application.....Rich
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Old 12-15-2011, 04:58 PM
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Re: Berger Jacket Thickness

Quote:
Originally Posted by Gene View Post
J4 is a division of Berger. They produce jackets only, and these are sold to bullet makers. The thickness may be proprietary. Their "hunting" bullets have thinner jackets than "target" bullets, to preclude break up in flight. As far as I know, Sierra is the only other manufacturer of jackets.
Hornady manufactures their own jackets as well.
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  #10  
Old 12-15-2011, 05:04 PM
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Re: Berger Jacket Thickness

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Originally Posted by Bullseye View Post
Hornady manufactures their own jackets as well.
But they don't sell jackets to the public, do they?......Rich
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  #11  
Old 12-21-2011, 09:14 AM
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Re: Berger Jacket Thickness

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Originally Posted by elkaholic View Post
But they don't sell jackets to the public, do they?......Rich
No, they don't.
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Old 07-02-2013, 02:26 PM
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Re: Berger Jacket Thickness

tag
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Old 07-02-2013, 07:35 PM
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Re: Berger Jacket Thickness

There are bits and pieces regarding jacket thickness. Am not aware of any one measuring the 6mms.

In a e-mail with Bryan Litz we discussed the 180 VLD hunting vs the 180 VLD target and he said:

"I can tell you that the thick jackets of the target bullets are only ~0.003" to 0.004" thicker per side than the standard thickness (hunting) jackets. "

Tumbleweed sectioned the 210 VLD and compared it to the 215 hybrid a while ago.

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re: Comparing the Berger 210 VLD to the 215 Hybrid

--------------------------------------------------------------------------------

Ok, I took the time this evening to cut apart a 215 Hybrid Target and a 210 VLD hunting bullet in order to compare jacket thickness. I was surprised at how very close the averaged thicknesses were between the two bullets. Of course I discovered the same thing a year ago when I compared the 210 VLD hunting and a 230 Hybrid Target in the same manner. I measured from the base of each jacket up to the ogive in six different places. I measured twice in order to get an average on each measurement for each jacket.

210 VLD Hunting average thickness between all measurements: .0218"

215 Hybrid Target average thickness between all measurements: .024"

That leaves a difference of .0022" between the two.

I did notice that both bullets start out at the base with a .027" thickness. The 210 VLD quickly drops to .023" thick just .125" above the base. It gradually tapers off to .019" into the top part of the ogive.
Thanks to you Tumbleweed. Link to this thread: Comparing the Berger 210 VLD to the 215 Hybrid

-------

Tumbleweed: hope you get around to comparing the two 6mms one of these days.
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  #14  
Old 07-02-2013, 08:47 PM
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Re: Berger Jacket Thickness

What really makes the difference in expansion is the thickness at the nose as well as shape, meplat diameter, and tipped or not. A .003-.004" difference in thickness there is very significant! Most J4 jackets that I have measured are approx. .014-.015" at the tip......Rich
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