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Rifles, Reloading, Optics, Equipment
Reloading
Flash hole question
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<blockquote data-quote="wapiti13" data-source="post: 63053" data-attributes="member: 2212"><p>pdhunter, The main reason to use a flah hole reamer is to remove the burr left from punching the brass. I'm not aware of any studies of oblong vs round, but the idea is to get the primer flame through the hole uniformly. If your rifle shoots good, I doubt that you will see much difference either way, unless you get the one case where the hole is mostly blocked. Seating depth, concentricity, chamber center, which primer, etc will have a larger impact on accuracy. Also, if you use a flash hole reamer and push the load to the max, you can get a leak past the primer since you will be slightly thinning the flash hole area. That is why you need to use a Sinclair type reamer to not remove too much material. /ubbthreads/images/graemlins/blush.gif</p></blockquote><p></p>
[QUOTE="wapiti13, post: 63053, member: 2212"] pdhunter, The main reason to use a flah hole reamer is to remove the burr left from punching the brass. I'm not aware of any studies of oblong vs round, but the idea is to get the primer flame through the hole uniformly. If your rifle shoots good, I doubt that you will see much difference either way, unless you get the one case where the hole is mostly blocked. Seating depth, concentricity, chamber center, which primer, etc will have a larger impact on accuracy. Also, if you use a flash hole reamer and push the load to the max, you can get a leak past the primer since you will be slightly thinning the flash hole area. That is why you need to use a Sinclair type reamer to not remove too much material. [img]/ubbthreads/images/graemlins/blush.gif[/img] [/QUOTE]
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Flash hole question
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