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408 Chey-Tac Imp

 
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  #1  
Old 06-17-2012, 01:15 PM
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408 Chey-Tac Imp

After reading a lot of the info available on the various 408 based calibers, I have noticed no attempts at just improving the 408 itself. Is this mainly due to not much in the way of bullet selection? Is all the bad press that Chey-Tac brought on itself a real factor as well? With the real velocity gains that have been seen in 338 and 375, I would thing a 408 400gr at 3100 with a BC in the .9-.93 range might be impressive. Any thoughts?
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Old 06-18-2012, 10:43 AM
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Re: 408 Chey-Tac Imp

Mayhem- I have wondered the same thing, as far as imporving the .408. I was also windering if anine has ever tried to improve the .408 and neck it down to .338. There are some .338's I found with a 1.4?? or so BC that only weigh 309 grains what would those do out of an improved .408 case as you were saying?!
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  #3  
Old 06-18-2012, 11:46 AM
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Re: 408 Chey-Tac Imp

Quote:
Originally Posted by redneckclimbing View Post
Mayhem- I have wondered the same thing, as far as imporving the .408. I was also windering if anine has ever tried to improve the .408 and neck it down to .338. There are some .338's I found with a 1.4?? or so BC that only weigh 309 grains what would those do out of an improved .408 case as you were saying?!

Several
338 Allen Mag
Allen Magnum Wildcats

338-408 Big-Baer
Heavy Artillery Russo Reveals the .338-408 'Big Baer' Daily Bulletin

338 Snipe Tac
338 SnipeTac

All variations on the 408 case with suttle differences in total body taper and shoulder angle, all with one purpose in mind, burn MORE powder MORE efficiently!
And push heavier, high BC bullets faster and flatter.

Dave
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Old 06-22-2012, 01:41 PM
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Re: 408 Chey-Tac Imp

I was just about to say that, that is a .338 Allen Magnum, after I looked around a little more.

Does anyone have any load data with some of the lathe turned solid bullets out there?
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Old 06-23-2012, 06:00 AM
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Re: 408 Chey-Tac Imp

Quote:
Originally Posted by redneckclimbing View Post
I was just about to say that, that is a .338 Allen Magnum, after I looked around a little more.

Does anyone have any load data with some of the lathe turned solid bullets out there?
Load data would be similiar to the standard match bullets. Of course, with the heavy lathe turned bullets, you have have a sharper twist barrel...but I have still been close to my data with the standard twist barrel and the match bullet.
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Old 06-24-2012, 01:17 AM
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Re: 408 Chey-Tac Imp

Redneck climbing, there are no 338 bullets with a 1.4 BC. I reakon you may have seen something put out by GS customs. if you think there is an ounce of truth to this nonsense, I invite you to obtain a few of these and fire them then come bank and give us a range report.
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Old 06-26-2012, 05:05 PM
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Re: 408 Chey-Tac Imp

Quote:
Originally Posted by Augustus View Post
Redneck climbing, there are no 338 bullets with a 1.4 BC. I reakon you may have seen something put out by GS customs. if you think there is an ounce of truth to this nonsense, I invite you to obtain a few of these and fire them then come bank and give us a range report.

You're right, they were from GS customs and the advertised B.C. was 1.2 something (don't remember off the top of my head). Anyways, do these not live up to the hype? Also, how do they do through the transonic range (transitioning from super to sub sonic)? Anyone know for sure?

Last edited by redneckclimbing; 06-26-2012 at 05:07 PM. Reason: spelling error
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