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deburring 6mmbr

hi guy looking for some answers about lapua brass i am going to REAMER the flash hole on my new lapua brass Do you need to DEBURR inside of thr case as well
 
Lapua brass is fine as is. Don't mess with the flash hole and it doesn't need deburring. Just put a good inside chamfer on the casemouth and that's it.
 
Do a visual inspection of the brass. Some lots have a thin sliver or obstruction in the flash hole. You can usually punch that out with a small-diam drill bit held in a pin vise.

If the brass looks OK visually you can probably leave the flash holes alone. I wouldn't ream them larger than .0625. Be aware that some of the flash hole reamers on the market have bits that will ream to .067 or larger.

flashholes1x350.jpg
 

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