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Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

 
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  #1  
Old 02-03-2012, 03:38 PM
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Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

I am at the SCI show and am standing next to Bob Beck from EOL as I write this post. We just received the design from Bryan Litz for the new Berger 7mm 195 gr EOL Hybrid Hunting bullet.

It has an estimated averaged G1 BC of .794 and a G7 BC of .406. For those who understand such things this bullet has a G7 form factor of .850. For those who don't know what that means it means that this bullet is the slickest (in terms of velocity retention) on the planet.

Bryan has relayed that this bullet at an estimated 1.637" long will need at least a 1:8.5" twist to be stabilized. Rumors of this bullet (started by your's truly) started several people asking the question of what twist will be required. This is the reason for me starting this thread. So those who are interested in trying this bullet can start working on getting barrels. By the time you'd be able to get one we should have this bullet available.

Regards,
Eric
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Old 02-03-2012, 04:00 PM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

Depending on how it handles high velocity this might be my magic bullet!
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Old 02-03-2012, 04:04 PM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

Well I guess I'm just the happy camper then because I am looking at a 7STW or 7RUM build and was chewing on what barrel I want. I was going to order a 9 twist. Looks like that will change.
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Old 02-03-2012, 04:17 PM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

I just got a 8 twist 7mm barrel yesterday.
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Old 02-03-2012, 04:24 PM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

Hi Eric,

You said it was the slickest bullet on the planet. Isn't the .338 300 gr hybrid with its .818 G1/.419 G7 slicker?

Thanks for making these new hybrids! I am looking forward to the .338 250 gr hybrid as well.
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Old 02-03-2012, 05:26 PM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

Quote:
Originally Posted by AZShooter View Post
Hi Eric,

You said it was the slickest bullet on the planet. Isn't the .338 300 gr hybrid with its .818 G1/.419 G7 slicker?
The .338 does have a higher BC, but a great deal of that BC comes from mass (300 vs 195 grains).

The .338 cal 300 grain hybrid has a G7 form factor of 0.895, which is extremely low drag. The estimated form factor of 0.850 for the 195 grain 7mm is about 5% lower drag than the .338 bullet.

When talking about 'slick' shapes, and low drag, it's a discussion about form factor. BC is the combination of form factor and sectional density.

For more background info on form factor, refer to this web-log article:
Berger Bulletin Form Factors: A Useful Analysis Tool

Please keep in mind this performance is estimated at this point. Estimations are usually accurate to within +/-4 or 5%. We won't know the exact form factor and BC of this bullet till it's actually made and tested.

-Bryan
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Old 02-03-2012, 06:16 PM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

My son will receive his new 7mm 300wm barrel in 1:9 twist next week. I sure hope you guys calculated the need twist rate incorrectly. But I suppose I will be the first to know because I will defiantly be buying a box when they are released to test for myself. Thank you to the you boys at berger for always pushing the envelope.
thanks, Jason
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