Scratched FL resizing die

B

BeagleBoy360

CGN Regular
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Location
London, ON
So, I just bought 1200 cases of brass, ran 4 batches of 300 in my tumbler over night. Got them looking purdddddddy.
Sized about 200 cases, and when I went to resize another the next batch. They started getting groves in the brass running length way down the brass.

I took the die apart, cleaned it well, lubed it, and then took another brass, lubed it, and ran it up the press, same marks. No matter how much I try and clean, it is still there, so my question to you all, should I send it to RCBS for warranty (wastes around 2 to 3 weeks) or do i try and polish the die.

Thanks for the help.

EDIT for solving my problem

Well i went to home depot, and bought some flitz polish, got a microfiber cloth, got it nice nad wet, and wrapped it around my glock barrel bruch, stuffed it in there, turned it around 15 - 20 turns by hand, and it brand spanking new.
For a big tube its only 12.99, so i fully recommend this to anyone who has this problem in the future, took the brass streak right out of the die.
 
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Take the die apart, clean it well, and have a look. If it is a simple burr, I have no problem with polishing stuff like that out.

YMMV.

Cheers
Trev
 
You might have a burr or build-up that is growing with brass from each piece of brass you run through it. Had this a couple of times when I'm not using any/enuf lubricant (usually on the neck). Solution runs from cleaning the die with Sweets 762 to using fine steel wool to remove the build-up point. FC is pretty soft and likely is building up on a hard point (piece of dirt, etc.) inside your die. After repeated pressure, it'll be tough to remove without using something like a fine steel wool.
 
I have been reloading for over 46 years and the same thing happens to me all the time, I get a little frustrated because I even wet tumble my brass with stainless steel media and it still happens. The problem is a piece of grit gets embedded in the brass and leaves scratches in the dies or the piece of grit gets embedded in the die from the case.

The fix, get a shotgun cleaning mop larger than the inside diameter of the die and chuck it in a hand drill. Then apply J&B bore paste, car rubbing compound or something similar with a little light weight oil added to the mop, shove it in the die and let the drill do its work.

If this doesn't remove the problem then take a slotted jag, fold some fine wet and dry sandpaper and put it in the slot of the jag. Chuck it in the hand drill and add oil to the inside of the die and start polishing the inside of the die. All you normally need to do is a light polishing with a drill with various fine abrasive materials.

If I'm feeling lazy I sometimes dissemble the die and just toss it in my vibratory case cleaner with walnut polishing media for a few hours and pretend I have a new die when I take it out of the tumbler.

NOTE:The abrasive grit in J&B bore paste is harder than carbon fouling but softer than steel and will not harm or cause wear in your rifle bores. So J&B bore paste will not effect the die dimensions and as long as your not ham fisted and your first name isn't Bubba you will do no harm with any careful method. If the die gets hot, starts to smoke and glows cherry red, cool the die in water, bandage your hand and then go buy a new die.
 
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