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190smk in 308?

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Unread 11-01-2003, 11:48 PM
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Re: 190smk in 308?

Jeff in TX,

It sounds almost like you had 1 rifling slightly longer or shorter. A 12 twist isnt the best for the 190, but it will stabilize it. According to some new twist calcs, the 190 at 2600 is at 1.5 stability factor with an 11.25 twist. 12 I think is between there and 1.0 which is still acceptable. I have put these calcs to the test with hair splitting accuracy. 175's can be very accurate from a 12 twist, even 13 twists. If you still have that barrel, I would have it recrowned by a good smith.

[ 11-01-2003: Message edited by: meichele ]
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
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