Strange line on 303 British Case?

[Aussie48]

Exactly BAR if you hold the LEE deburring tool at an angle to "help" it chamfer the outside of the case mouth that is exactly the mark you get, I suspect other deburring tools will give the same result.

How do I know? I did it myself very early on in my case prep, old, crotchety and wanted to get it done faster.

Dick

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.

[browningautorifle]

Exactly BAR if you hold the LEE deburring tool at an angle to "help" it chamfer the outside of the case mouth that is exactly the mark you get

You're correct of course, I've done it myself. I have one of those, prefer the RCBS tool though. I'd forgotten about that.

Now if we can only hear back from the OP on this...