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Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

 
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  #155  
Old 08-21-2012, 03:55 PM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

Our general rule of thumb that works out pretty darn close on velocities with the 7mm's is 100fps change per 10 grains bullet weight. Obviously bearing surface comes into it as well, but when comparing like with like as in 180gn Berger with 195gn Berger, 15gns extra weight means 150fps less velocity, so pretty close to what quickload says.
Greg
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  #156  
Old 08-22-2012, 10:09 AM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

My question is what of the throat length?


If a gunsmith has a reamer for 7mm WSM with a 'long' throat for the 180s, will that suffice for these 195s? Will we need to start ordering specific reamers for this oversized projectile?


I'd love to mag feed these 195s in a 7mm WSM case and be able to jump or jam them as they please. Obviously I'd go long action but I'm just worried about the conventional reamers out there and whether or not the reduction of case capacity would make it worth it.
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  #157  
Old 08-22-2012, 12:08 PM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

We're all going to die, all of us, what a circus! That alone should make us love each other but it doesn't. We are terrorized and flattened by trivialities, we are eaten up by nothing. ― Charles Bukowski


Outstanding signature qoute!!! Can I use this?
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  #158  
Old 08-22-2012, 10:55 PM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

Quote:
Originally Posted by RH300UM View Post
We're all going to die, all of us, what a circus! That alone should make us love each other but it doesn't. We are terrorized and flattened by trivialities, we are eaten up by nothing. ― Charles Bukowski


Outstanding signature qoute!!! Can I use this?


Knock yourself out; it's from Bukowski not me! I've always had it in my sig line on other forums because it sums up most of my views in one line!
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  #159  
Old 08-23-2012, 09:19 AM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

Quote:
Originally Posted by Haagen Dazs View Post
My question is what of the throat length?
If a gunsmith has a reamer for 7mm WSM with a 'long' throat for the 180s, will that suffice for these 195s? Will we need to start ordering specific reamers for this oversized projectile?
We still don't have the tooling so what we actually end up with is not certain. Having said that, I can relay the the design calls for a shorter bearing surface on the 7mm 195 gr than the 7mm 180 gr VLD. The nose is very long.

I will get with Bryan to see if he can post a drawing of the bullet. It is very important that everyone understands that we don't always match the design perfectly when we get the tooling. We get closer with our current tooling than we have in the past but it can be slightly different.

Regards,
Eric
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  #160  
Old 08-23-2012, 11:20 PM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

Eric/Bryan:

What's the estimated max MV with a 1:9 twist that they can handle? (thinking 7mmAM velocities here.......)
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  #161  
Old 08-28-2012, 09:50 AM
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Re: Berger to introduce 7mm 195 gr EOL Hybrid Hunting Bullet

This should help with some of the questions related to chamber/throat design:



-Bryan
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