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from the Hip · January 19, 2007, 11:11 PM

I do trim the flash hole on my .308 win cases. It will help with consistency. I do not bother with pistol cases or some of my other rifles case that I am not fussy about. I use a modified #2 ctr drill. I believe the Lyman tool is a #2 center drill that can be purchased from any industrial supply for $5-$10. If you were to deburr the inside well and barley kiss the primer side you would end up with an hour glass cross section with both angles being 30deg per side. I hope this helps.

January 19, 2007, 11:11 PM	#4
from the Hip Member Join Date: May 28, 2006 Posts: 33	I do trim the flash hole on my .308 win cases. It will help with consistency. I do not bother with pistol cases or some of my other rifles case that I am not fussy about. I use a modified #2 ctr drill. I believe the Lyman tool is a #2 center drill that can be purchased from any industrial supply for $5-$10. If you were to deburr the inside well and barley kiss the primer side you would end up with an hour glass cross section with both angles being 30deg per side. I hope this helps.