Lines on Brass After Resizing
Quote from Reloader on December 9, 2008, 6:37 pmI am reloading .40 S&W on my 550B. After Stage One/Resizing, most of the brass comes out of the die with what appear to be grooves, scratches or at least lines along the length of the cartridge. They are all evenly spaced and look like long, very narrow stripes.
Is this normal? It is noticeable, but does not appear to hurt the case.
Any ideas?
Thanks!
I am reloading .40 S&W on my 550B. After Stage One/Resizing, most of the brass comes out of the die with what appear to be grooves, scratches or at least lines along the length of the cartridge. They are all evenly spaced and look like long, very narrow stripes.
Is this normal? It is noticeable, but does not appear to hurt the case.
Any ideas?
Thanks!
Quote from Reloader on December 10, 2008, 4:34 pmIt sounds like the interior of the die is dirty. Unscrew the decap assembly and clean the interior of the die with a bronze bore brush and bore solvent.
It sounds like the interior of the die is dirty. Unscrew the decap assembly and clean the interior of the die with a bronze bore brush and bore solvent.
Quote from Reloader on December 19, 2008, 3:44 pmAfter cleaning as suggested, I also chuck up a bore swab in a drill, put a shotgun patch on it, slather some Flitz on there, and run it in my die's for about 15-20 seconds to polish them. I also do the external surface of the powder funnel where the case contacts it. It makes a temendous difference in the smooth operation of the press when things get scratched up due to brass shavings etc.
Also, if you don't already, make sure you clean and polish the brass if its dirty. I also try to make sure there isn't any media on the outsides as well.
Regards,
Ralph Grant
RL550B with Casefeeder, RF-100 Primer Filler
45ACP-40SW-45LC-9MM-10MM all on Quick Caliber Conversions
After cleaning as suggested, I also chuck up a bore swab in a drill, put a shotgun patch on it, slather some Flitz on there, and run it in my die's for about 15-20 seconds to polish them. I also do the external surface of the powder funnel where the case contacts it. It makes a temendous difference in the smooth operation of the press when things get scratched up due to brass shavings etc.
Also, if you don't already, make sure you clean and polish the brass if its dirty. I also try to make sure there isn't any media on the outsides as well.
Regards,
Ralph Grant
RL550B with Casefeeder, RF-100 Primer Filler
45ACP-40SW-45LC-9MM-10MM all on Quick Caliber Conversions
Quote from Reloader on December 27, 2008, 7:09 pmmine does the same. typically it indicates a small scratch on the interior of the die. When I used to be a pressman, we would have to return certain sizing and shaping dies to our T&D guys to have them repolished.
mine does the same. typically it indicates a small scratch on the interior of the die. When I used to be a pressman, we would have to return certain sizing and shaping dies to our T&D guys to have them repolished.
Quote from Reloader on January 5, 2009, 5:24 pmI've read that this can also be caused by residual tumbler media dust on the brass. Not sure if that's a myth though.
I've read that this can also be caused by residual tumbler media dust on the brass. Not sure if that's a myth though.