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Cauterucio 176

 
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  #1  
Old 03-13-2004, 07:32 PM
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Cauterucio 176

Len

What twist have you figured would be best for this bullet? Anyone else too. [img]images/icons/smile.gif[/img]

Bob doesn't make 30 cal's does he?
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Old 03-13-2004, 09:02 PM
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Re: Cauterucio 176

Twist depends somewhat on velocity, of course, but nine twist at 3200 or so fps.

I think he makes a 30 but not a VLD version.
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Old 03-13-2004, 10:19 PM
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Re: Cauterucio 176

Brent,
Len is correct, I have some of Bob's 200gr 30s and they are not VLDs. They look like SMKs.
db
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Old 03-13-2004, 11:00 PM
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Re: Cauterucio 176

At what point in MV do you guys feel an 8.5 or 8 twist may be needed and would be a safe twist?

Len,
What was the twist rate on the Dakota of yours that you seemed to find was a hair slow for the 176, and the MV it was at? Maybe I misunderstood? I think I remember something about you going to a faster twist to be sure, or something to that effect so you wouldn't have to drop to the 168 (wt?) or which ever the lighter of the two is. My mind is a little fuzzy on this.

The 7mm stuff is new to me, no familiarity with them or the bullets/twists etc for the large part.

We'd been discussing the 7/338LI at the gun shop yesterday and Dad and I were talking later of having the next Lapua Imp reamer just based on the 6.5 and using seperate neck and throater reamers to take them out to 7mm, 30 cal, 338, and 416 etc.

Dad thinks I'm out of my mind (so did Dave) for thinking 6.5 or 7mm on the Lapua case, but with a longer neck and 40 deg shoulder I think I'll experiment a little.

Tell me, does the 30 cal Bob makes have a boattail?

I've heard John Hoover sells them, any other place I should look?

[ 03-13-2004: Message edited by: Brent ]
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Old 03-13-2004, 11:26 PM
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Re: Cauterucio 176

Yes, HPBT.
db

[ 03-13-2004: Message edited by: dbhostler ]
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Old 03-14-2004, 03:28 AM
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Re: Cauterucio 176

Thanks DB!
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Old 03-14-2004, 07:04 AM
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Re: Cauterucio 176

Brent

That barrel was a 9 twist. It is being changed to an 8 twist. But...I am no longer so sure that the 9 twist was too slow at that gun's 3,150 fps.

Chris Mathews has discovered that the existing barrel was rather rough in its last 10 inches. He also found hairline cracks on either side of the HS Precision stock just ahead of the forward action screw on the Nesika Bay action. I don't know how long it was cracked.

If you remember, I was reporting vertical flyers. About 2 or 3 out of 10 shots would increase a group's vertical about 1/2 moa more than the other shots. We are putting a McMillan A-5 stock on that rifle.

My 7/338 Lapua Improved project will be done in a 9 twist for 3,400 fps with the Cauterucio 176.
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