Flash hole deburring question

By ffinch
Published on: 2009-04-09 at 6:06 PM

Replies: 0

I have a question regarding deburring cartridge flash holes in new brass cartridges. Simply put, how does one know when enough is enough? I have an RCBS deburring hand tool with an adjustable stop for deburring my .223 cases. (Dillon doesn't make this tool, or I would buy it from Dillon!)

But, how should I adjust the tool stop on this hand tool so that I can be sure not to remove too much brass from the inside of the casing near the flash hole? Should I back it off .001? .003 or more?

Please help, thanks.

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Posted by: chetchissler

Posted on: 2009-04-10 at 04:30:41 PM

I might be wrong here.. but,

the RCBS flashole debur tool does not come preset for a 223rem. It is made to work on any .224 cartridge (22-250, 220swift, 223wssm ect...) I own a 223rem and 22-250 and have two .224 debur tools, one for each cartridge so I dont have to change the depth setting.

All you're trying to accomplish is removing the burr caused by the punch that punches the flashhole. You're not trying to bevel the inside of the flashhole (hopefully) this can cause a thin spot and be dangerous. I do one by hand, without the guide.... and then set the guide to that depth. Look down in there with a flashlight to see how much material has been removed.

hope I helped

Rifle Calibers

Flash hole deburring question

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