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Anyone own a 7mm 300 Win Mag?

 
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  #246  
Old 12-09-2012, 06:53 PM
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Re: Anyone own a 7mm 300 Win Mag?

has berger released a time frame on the 195gr. eol bullet. i cannot find any info except here on its exitance. have a model 70 in this cal. working on rebarrelling a m700
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  #247  
Old 12-09-2012, 06:57 PM
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Re: Anyone own a 7mm 300 Win Mag?

the latest from Eric Stecker

Quote:
A few thoughts from the horse's mouth on the 7mm 195 gr.

The bullet tooling is finished and has been tested with successful results. This means that we can make bullets that match the design dimensions, nothing more. We used prototype jackets since the length of the jacket we needed was not certain.

Now that the length of the jacket needed is known we have it in our schedule to make standard issue, J4 match grade jackets. The fact is that the election has us overwhelmed with demand. This means only that we can't get these jackets made tomorrow but they will be made soon.

Then, they will be sent to Bob and a few other folks (Kirby for one) to be tested and abused. If these tests prove to be positive then the bullets will be regularly available as soon as we make more (once the test results are confirmed). I won't BS you. This could take 2 to 12 month depending on what happens during the testing phase.

I'll remind everyone that this is a totally new concept. It is in fact not as close to the recently tested 270 cal 170 gr bullet as Bob posted about. The 170 gr is outside the norm but not nearly as much as the 195 gr. Having said that, the 270 cal 170 gr has performed well in abuse testing and is now going to terminal performance testing. The good news is that so far everything looks good.

Something to keep in mind about the 7mm 195 gr, we are making it with the idea in mind that it will be pushed hard in larger cases. The heavier weight and sleek design is a big leap forward in performance (if it works). In smaller cases much MV will be lost due to the heavy weight which may produce a wash in performance compared to 180 gr bullets.

I'll admit that this is a generalization based on no factual testing data at this time but I don't want anyone to think that we are creating the next lazer beam. It is still a bullet subject to all the same influences and physics realities as every other bullet.

Regards,
Eric
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  #248  
Old 12-09-2012, 06:57 PM
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Re: Anyone own a 7mm 300 Win Mag?

Sounds interesting! Broz! Do you think that a 1n9 twist would stabilize the 195? I'm fixing to order the barrel.
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  #249  
Old 12-09-2012, 07:00 PM
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Re: Anyone own a 7mm 300 Win Mag?

Bryan reccommends a 8.5 but i am building a 284 win around this bullet and i will only be getting around 2575 fps so i am going with a 8 twist 24" brux.
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I'm 15
"Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth."
~George Washington

"The only advantage a light rifle has is weight, all other advantages go to the heavy rifle."
~ JE Custom

Biggest fail of 2014 so far... http://www.longrangehunting.com/foru...ea-ftf-128972/
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  #250  
Old 12-09-2012, 07:06 PM
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Re: Anyone own a 7mm 300 Win Mag?

Quote:
Originally Posted by Dick Tinsley View Post
Sounds interesting! Broz! Do you think that a 1n9 twist would stabilize the 195? I'm fixing to order the barrel.
I am going to start my testing with a 28 1/2" 1 in 9 but I am at over 4000 ft. At your elevation I would go 8.5.

Jeff
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  #251  
Old 12-09-2012, 07:08 PM
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Re: Anyone own a 7mm 300 Win Mag?

Thanks for the info!
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  #252  
Old 12-09-2012, 09:56 PM
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Re: Anyone own a 7mm 300 Win Mag?

Broz

Why does elevation effect twist rate? 4000 ft vs sea level
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