I have a K31, which with Sierra Match Kings Lot 2200 168 gns., have to be set to C.O.L. of 2.861" showing a tiny witness mark. This witness mark isn't from the lands, it is from the entrance to the throat. On this page, Carlos suggests a C.O.L of 2.874 us...
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Re: 7.5x55 Load Tables-

April 2, 2015, 5:40 pm

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1889 wrote:I have a K31, which with Sierra Match Kings Lot 2200 168 gns., have to be set to C.O.L. of 2.861" showing a tiny witness mark. This witness mark isn't from the lands, it is from the entrance to the throat. On this page, Carlos suggests a C.O.L ...
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Re: 7.5x55 Load Tables-

April 2, 2015, 7:49 pm

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Thanks Parashooter. To make it perfectly clear to me. If I set the 00 distance to be just clear of the lands but with throat marks, is that ok?

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Re: 7.5x55 Load Tables-

April 3, 2015, 12:20 am

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If we develop our charges prudently (start low), it makes no difference for safety if the bullet is jammed hard into the lands or is seated for a significant "jump". Either condition (or somewhere in-between) can be perfectly safe with an appropriate char...
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Re: 7.5x55 Load Tables-

April 3, 2015, 9:14 am

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That'll do for me. Point taken.

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Re: 7.5x55 Load Tables-

April 4, 2015, 11:11 am

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"This business of making tiny adjustments to seating depth is fine for a heavy benchrest or match rifle but largely irrelevant for an as-issued battle rifle." This. So many times this. I once helped a guy who was doing all kinds of wierd benchrest techniq...
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