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Bullet into lands= velocity deviation?

 
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Old 11-18-2011, 12:01 PM
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Location: Booneville, Ar
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Re: Bullet into lands= velocity deviation?

I am using H4831, I am seeing the greater descrepancies in the heavier charge of 54gr ( which is the recommended max for this caliber and bullet)and it is not shoing any pressure signs on the brass I am not using a compenator and cannot get true oal right now due to a faulty hornady gage. We pushed it back to fit in the magazine with a oal(not measured from the ogive at 3.341 which is well into the lands but not sticking 5the bolt to bad. Brad
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Old 11-18-2011, 02:39 PM
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Re: Bullet into lands= velocity deviation?

Quote:
Originally Posted by RangerBrad View Post
I am using H4831, I am seeing the greater descrepancies in the heavier charge of 54gr ( which is the recommended max for this caliber and bullet)and it is not shoing any pressure signs on the brass I am not using a compenator and cannot get true oal right now due to a faulty hornady gage. We pushed it back to fit in the magazine with a oal(not measured from the ogive at 3.341 which is well into the lands but not sticking 5the bolt to bad. Brad
I would say try backing off 1/4 or 1/2 grain at a time. That should solve your ES issue (not that it's terrible now) and tighten up your groups.

Normally as you reach max loads the ES opens up and so do the groups; at least that's what I've seen over the years.
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