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375 Allen Magnum repeater....

 
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  #15  
Old 07-21-2009, 02:41 PM
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Re: 375 Allen Magnum repeater....

Unimaginable group - exellent shooting!
I`m now really confused, please help. Are the following calibers all one and the same: 375 Allen Magnum, 375-408 and 375 Cheytac?
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  #16  
Old 07-21-2009, 03:54 PM
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Join Date: Jan 2004
Location: Blackfoot, Idaho
Posts: 8,047
Re: 375 Allen Magnum repeater....

Quote:
Originally Posted by casspir View Post
Unimaginable group - exellent shooting!
I`m now really confused, please help. Are the following calibers all one and the same: 375 Allen Magnum, 375-408 and 375 Cheytac?
Almost but nope.......

The 375 AM and 375 snipe-tac are close. (Improved over the std. Cheytac case)

The 375-408 and 375 Cheytac are most probably 408 Cheytac necked to 375.

Both the 375 AM and 375 Snipe-Tac were developed independently by two different rifle smiths with the similar thinkin'.
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  #17  
Old 07-21-2009, 05:33 PM
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Location: Fort Shaw, Montana
Posts: 6,793
Re: 375 Allen Magnum repeater....

Just to add a bit more detail to what Roy has offered.

The 375 Chey Tac and 375-408 are identical. It was called the 375-408 before Chey Tac released their 375 Chey Tac cartridge.

Pretty much all of the 375 wildcats on the 408 case have a slightly improved shoulder angle compared to the parent case.

My 375 Allen Magnum has the shoulder relocated to increase case body length which increases case capacity compared to all the other wildcats based on this case. The shoulder angle is also steeper producing the highest case capacity in this class of chambering.
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Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
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  #18  
Old 07-21-2009, 09:07 PM
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Join Date: Jul 2009
Posts: 21
Re: 375 Allen Magnum repeater....

Thank you Gentlemen!
Fiftydriver, what would the barrel life of the 375 Allen Magnum be?
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  #19  
Old 07-21-2009, 09:43 PM
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Re: 375 Allen Magnum repeater....

Predicting barrel life is extremely difficult to do accurately for many reasons, most of them in the hands of the owner and how they treat the rifle as far as cleaning and shooting.

Take a 375 AM and shoot it like a high volume 223 Rem Varmint rifle and you will get at least 500 rounds of accuracy out of it!!!

Take the same rifle as use it for its intended purpose, which is long range big game hunting, and the rifle would likely last a lifetime for even serious big game hunters.

Average barrel life will obviously be somewhere in between these two extremes. To be honest, I have yet to burn out a 375 AM barrel so I can not give you a solid number.

I have burnt out several 338 AM barrels and that one will average 800 to 1000 rounds down the bore with big game hunting accuracy. I would estimate a 375 AM would get you into the 1200 to 1400 round barrel life pretty easily if you take care of the rifle and do not over heat the bore.

Again, there are so many variables its hard to predict or should I say impossible to predict, its much more in the hands of the customer as to how long the barrels will last.

Hows that for dancing around the questions. Ya might think I was a politician!!! Maybe not!!!
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Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
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  #20  
Old 07-21-2009, 10:02 PM
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Join Date: Jul 2009
Posts: 21
Re: 375 Allen Magnum repeater....

Thanks again. If you were a Politician, at least you would have been an honest one -bwahaha!
To get back to that shooting of yours - it really was IMPRESSIVE.
Will send you a PM.
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  #21  
Old 07-21-2009, 11:10 PM
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Join Date: Jul 2008
Location: Base of the Bluemountains aka Gods Country
Posts: 466
Re: 375 Allen Magnum repeater....

Kirby I was surprised to see that you used a 34.5 barrel and not a 32 or even a 30 I thought with the bigger bore you did not need all that lenght. If you were to make it with a 32 or a 30 what would be the change in volocity. Thanks Kyle
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