Flash-hole deburring woe

R

relodr36

Guest
I've used a flash-hole deburrer for many years - one like Sinclair calls their model 1000 - with no problems.I believe mine was branded EJS,originally.
I just went thru a 100 new Remington(bulk) .270's that I got from Midway about 6 years ago and it was a heck of a job.
At 73,I know I'm less steady than I used to be,but I had a hard time getting the tool tip started in the flash holes.Apparently,this lot of cases had worse burrs than normal.Some cases,I had to open the hole by inserting a #47 drill from the primer side.
It took me about an hour to go thru 100 pieces of brass.
Has anybody found a better flash-hole deburrer?
 
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In Sinclair's latest catalog, they have a new flash hole deburring tool that uses a caliber specific pilot that should center the cutter, instead of the angled neck piece on the older models. I agree, it can be hard to use sometimes.
 
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I use the K&M also and like it the most. But, you can tell a big difference between cases like Lapua and Winchester. Some of those Winchesters are just plain rough! Some nights I can't seem to get them started correctly either and I am just 42! :eek:
 
If you spin your cases in a cordless screwdriver using a Lee case holder it works real well.Get the cases spinning then add the tool.
Lynn aka Waterboy
 
I'm sure glad nobody remembers the articles in PS magazine years ago on pressure testing brass that has drilled and reamed flash holes. The best reason for paying the extra money for good brass to start with.
 
Big Al said:
I'm sure glad nobody remembers the articles in PS magazine years ago on pressure testing brass that has drilled and reamed flash holes. The best reason for paying the extra money for good brass to start with.
Click to expand...

BigAl
I don't know which brass your talking about but if its Lapua and the flashholes are supposed to be drilled it must be done on several different machines each with its own size drill bit.
Waterboy
 
I've noticed the same problem with some older lots of brass. Big burrs on the inside that were really hard to cut off with my old (Brown Precision I think) deburring tool.
 
I use a Redding flash hole debur tool and a Lee case holder in my drill. I keep a paper clip with the proper French curve to clean out the shavings from the tool. I size, debur/chamfer neck, flash hole debur and clean out with neck brush with Redding and Lee mix. Works fast.

Some calibers seem to have more "junk" in them than others.

Can't remember if it was .270, 8x57, or 30-30 but there was a lot more in there than the .223 Remington. It was all R-P brass.

Hornady brass tends to take more work to debur than other brands, including LC.

Nickel stuff "seems" to work my tools more, including the flash hole debur tool.

The collet for the Redding has a set screw that works itself loose from time to time. But allows for varying lengths. But handy for dealing with lots of calibers.
 
I use Lapua brass and I don't worry about flash holes. Buy the best and cuss less.

Donald
 
I use Lapua too but I still debur every single one of them. Buy the best and make it better! ;)
 
How do you know deburring makes a case better. I have never found a burr in a Lapua case. Can you prove deburring makes it better or just makes you feel better. If the latter, then by all means go ahead. :)

Donald
 
Well, I see it removing metal so I know it is making them more uniform. Since uniformity and consistency are known components of accuracy, I think “better” is a good choice of words.

Also, I know by removing any doubt about the things I can control it leaves me less variables to deal with during load development. :)
 
Donald said:
How do you know deburring makes a case better. I have never found a burr in a Lapua case. Can you prove deburring makes it better or just makes you feel better. If the latter, then by all means go ahead. :)

Donald
Click to expand...

Since Lapua (and Norma) cases have drilled flash holes it's not likely to do anything for them, but for domestic cases which sometimes (frequently?) have some nasty burrs inside the flash holes from being punched it well may help. Can I prove it? No. Does it make me feel better? Maybe.
 
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