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Cauterucio Bullets

 
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  #1  
Old 12-27-2002, 06:37 PM
 
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Cauterucio Bullets

Does anyone have any data on either the 156's or 176's with 7mm STW. (or any other 7mm for that matter)
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  #2  
Old 12-27-2002, 07:21 PM
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Re: Cauterucio Bullets

Last month I double-lunged a 10 point buck at 525 yards with the 176 grain bullet. Cartridge was 7 Dakota in a 30 inch barrel.

74 grains of RL25 for a velocity of 3130 FPS. The BC does seem as high as I had hoped, about .750 according to my in-flight tests.

The jackets on these are made by Sierra and are about 50% thicker than on a matchking, I would guess. As a comparison the jacket on the A-max is significantly thinner than the matchking.

Last year I shot 4 deer (one shot kills) at ranges from 525 to 690 and got no pass-through with A-max or Matchking bullets. I decided to look for a high bc bullet with a sturdier jacket construction to gain pass-through for tracking purposes.

Bob's bullet fits the bill perfectly. The exit wound was just over 1 inch in diameter. Accuracy was about the same as the MK, which is sort of an accuracy standard other bullets are judged by.

[ 12-27-2002: Message edited by: Len Backus ]
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  #3  
Old 12-27-2002, 07:31 PM
 
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Re: Cauterucio Bullets

Len, how many inch Barrel do you have? I have a 7MM STW with a 1:9 twist 26" Krieger?

Thank You
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Old 12-27-2002, 08:08 PM
 
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Re: Cauterucio Bullets

Also, do you leave the lube on?
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  #5  
Old 12-27-2002, 08:12 PM
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Re: Cauterucio Bullets

I removed the lube which I assume was only there for manufacturing purposes.

30 inch barrel.
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  #6  
Old 12-27-2002, 08:17 PM
 
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Re: Cauterucio Bullets

The reason I asked about the lube is that bob said he leaves it on. Do you moly coat?

Do you have any Data on the 156's?

I have a 26" barrel with a 1:9 twist. I'm curious as to whether the 156 or the 176 would perform better in my rifle and what velocities I can acheive.
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  #7  
Old 12-27-2002, 09:22 PM
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Re: Cauterucio Bullets

No moly.

I bought some 156s but have not shot them.

My twist is 7 but I think Bob would recommend 8 or 9.
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