Posted: 12/19/2014 10:59:01 PM EDT
| Is there a tool to uniform the flash hole? My Lapua brass has a crisp clean flash hole but some of my other brass does not. Some of it looks like the flash holes were punched it and there are burrs on the inside of the case. |
|
Quoted:
Is there a tool to uniform the flash hole? My Lapua brass has a crisp clean flash hole but some of my other brass does not. Some of it looks like the flash holes were punched it and there are burrs on the inside of the case. I use the Lyman flash hole tool, works well. |
|
Make sure..................................
Some Lapua brass has the small flash hole.....most other brands do not... These cartridges come with 0.062" 220 Russian 6MM BR 6.5x47 Lapua 308 Palma So be sure of what tool you are ordering PPC/BR flash hole of 0.62" the standard flash hole is 0.080" Some tools are not clearly stated as to size.... ie Hornady and Lyman come to mind. |
|
I have read that people tend to over do it and create flash holes that are unsafe.
I was using a Lyman flash hole uniforming tool when I first started out (a year ago). Then I realized there is not a very precise way to control the depth of the chamfer and other things would be a more productive use of my time. The tool is a .220" (from my memory) diameter rod, with a lockable sliding cone that is meant to act as a centering device and a stop. The grind of the cutter looks like a miniature center drill. The problem is that it stops on the inside edge of the case mouth that either is untrimmed, has a burr, or was deburred until you felt like it was good. I don't feel that is good enough precision to alter the nozzle which lights up my powder. A better design would function less as cutter and more as a chip scraper. Edit: that Redding tool RegionRat linked to from Sinclair looks like a better design to me. |
|
I use the Sinclair deburring tool here:
http://www.sinclairintl.com/reloading-equipment/case-preparation/flash-hole-deburring-tools/gen-ii-universal-flashhole-deburring-tool-prod34127.aspx I chuck it into my cordless drill, put my cordless drill into a vice and use either zip ties or tape to hold my drill at a low rpm. It works really well. Very happy with the results. |