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RE: Small rifle primer adapters
brian,
we can't get lp match primers here in oz. probably insufficient market size.
did you use a paper wad under the primer?
i recently tried russian lr primers, and they are the best rifle primers i have used in bpcr, but not as good as fed lp with a wad for vert.
standard deviation figures from the chronograph take on more relevence as the range increases, and pistol primers give s.d. of around 4 for 10+ shots.
anything less than 10 shots is statistically invalid when establishing s.d.
the vert you got would certainly suggest that wind reading is a higher priority than closing groups further.
keep safe,
bruce.
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