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Old November 16, 2012, 07:22 PM   #1
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Join Date: October 6, 2009
Posts: 300
Flash Hole Size-Whats too large/small?

Opologize for this subject that has been discussed so much before...

I understand that .080 is the US standard but what im not sure of is how large is too large? I have some Winchester brass in 22-250 that has some crazy flash hole sizes, or atleast inconsistant with eachother. This was store bought Super-X ammo i have shot and am preparing for reloading.

Im not a BR shooter but this is a varmint rifle and i am loading for as much accuracy as possible. Is there an understood tolerance used by the majority (who care about the different flash hole sizes)? All my drill bits are standard sizes to the nearest 64th of an inch. What size do i need to use as a nogo?

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