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Seating Depth Question 180 gr. vs. 200 gr Accubond

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Unread 05-23-2006, 02:37 PM
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Seating Depth Question 180 gr. vs. 200 gr Accubond

I have a load worked up for my .300 Winchester Magnum utilizing the 200 grain version of the Nosler Accubond. It shoots right at m.o.a as an average. Since I consider myself a moderate junky, I can't leave well enough alone in search of the perfect load [img]/ubbthreads/images/graemlins/smile.gif[/img]

Anyway, throughout the course of this year I have been trying to get the new Scirocco II bullets in the 180 grain guise to fly true...no luck here [img]/ubbthreads/images/graemlins/frown.gif[/img]

I was at the gun store last night and on a whim I picked up a box of 180 grain Nosler Accubonds to try.

My question is this:

Using my Stoney Point Comparator, should I seat the 180 grainers to the same comparator length as the 200's for a starting point (Should this be the same amount of distance from the lands with both bullets)?
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Unread 05-23-2006, 05:37 PM
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Join Date: Feb 2005
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Re: Seating Depth Question 180 gr. vs. 200 gr Accubond

my owen preference is to just use my OAL Gauge

from Stoney Point, that way I know what I'm getting.

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also as it was in the days of Lot so it shall be in the days...
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Unread 05-24-2006, 06:23 AM
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Re: Seating Depth Question 180 gr. vs. 200 gr Accubond

I'd seat them so the bearing surface is the same distance from the lands. After getting a good charge worked out you could play with the seating depth if you're really into experimenting for improvement.
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Unread 05-25-2006, 03:45 AM
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Join Date: Dec 2001
Location: Long Island, New York
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Re: Seating Depth Question 180 gr. vs. 200 gr Accubond

What you should do is measure the throat using the OAL gauge w/ bullet comparator and a bullet from the new box of 180's. Then seat your bullets to the desired depth.

Ojives often vary from bullet to bullet within the same style and manufacturer. I have also noticed that new bullets don't always have the same ojive as older bullets that have the exact same weight, shape and item number.

Things change - I'd check the new bullets first so that you can be sure of what you are actually getting.
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