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| One of Us |
I had an rcbs full length sizing die that I used for years, then I noticed it started leaving scratch marks on neck. deep enough I could slightly feel them with thumb nail. Bought a new redding die, brass has been cleaned. 25-30 rounds into resizing I'm noticing the same thing. Haven't noticed this with any other calibers ever. brass has been fired in various rifles. symptoms are not random, its every round now . I'm using redding imperial sizing die wax for lube. Any thoughts? | ||
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| One of Us |
I'm gonna assume the scratches are in the same place every time. that indicates you got some small bits of grit or dirt in the dies. I'd look at my cleaning media. just a side note. I remember back in the later 60's they were able to prosecute a guy for murder by matching up the scratches in his reloading dies to the piece of brass they found up on a hill side. | |||
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| Administrator |
You getting the same scratch from both dies? You did mention RCBS and Redding?? | |||
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One of Us |
Yeah, your brass has sand embedded in it. At least one does. I have reloaded for many decades, 76 calibers, and never had a scratched die. I don't always tumble it but always make sure it is clean. I've even made dies from un hardened steel; those don't scratch either. Need to find/clean/trash that bad piece (pieces) (all of it) of brass. | |||
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| one of us |
Take a couple of empties and polish the necks bright. Place an orientation mark on the case and a corresponding mark on the dies. Size the cases and inspect to confirm it is the dies. If not, it is your chamber. If it is the die, then the marks will locate the damage.
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| One of Us |
The new dies didn't do it at first, 20 rounds or so. Maybe it's from the cleaning media. I just don't understand why only on the 06? Have 3 of em, but I don't see any marks on brass prior to resizing. will follow up with all ideas. thank you | |||
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| one of us |
Or, maybe a round you chambered had grit on it and raised a burr on the chamber neck.
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| One of Us |
after looking at everything I did last winter, I'm pretty sure I must have picked up some sand on the 06 cases I was practicing with at the end of my marathon resizing and priming session last winter. The marks on brass are different from each die. Did a short batch of brass in new clean media and same results in each die, but different marks from each die but same rifle on that batch. New die on the way. where I was practicing shooting is a hill that is mostly diatomaceous earth, very abrasive stuff. | |||
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Moderator |
it's HIGHLY likely to be grit in the die - qtips are your friend .. qtip, swirled in imperial sizing wax, wipe the neck and shoulder - and working top to bottom should help and, if it pulls the qtip, you have a burr opinions vary band of bubbas and STC hunting Club Information on Ammoguide about the416AR, 458AR, 470AR, 500AR What is an AR round? Case Drawings 416-458-470AR and 500AR. 476AR, http://www.weaponsmith.com | |||
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| One of Us |
Yes, it's dirt or other contaminant in your dies. I've had dies do that from little flakes of nickel from nickel plated brass cases. I just cleaned them up with a bore caliber cleaning brush wrapped in fine steel wool and chucked in an electric drill. Cleaned up in a few moments, and no more scratches. | |||
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