Small dents

tomapleleafss

CGN Regular
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Southeast SK
Hey everyone, come across a couple of these while reloading yesterday. Notice the small dents. The brass had the shoulders bumped and neck sized. Any idea what causes this? Thanks

https://photos.app.goo.gl/stDqOSOSb5mq0fno2
 
Looks like you are using to much case lube. Take your die apart and clean it and use your case lube more sparingly.
 
I looked at the pictures and those don't look like any lube dents I have encountered. They are small and round, look like firing pin size dents.
When I have had dents they were shallower and bigger and further down on the case.
 
That looks more like I'm used to.
In the OP the dents are smaller, rounder and right at the neck/shoulder junction. Could be too much lube, but as I say, the above looks more like I have encountered.
 
Hey everyone, come across a couple of these while reloading yesterday. Notice the small dents. The brass had the shoulders bumped and neck sized. Any idea what causes this? Thanks

https://photos.app.goo.gl/stDqOSOSb5mq0fno2

What make/type neck sizing die..........is it a Lee collet die... and what make/type body die.

You need to see which die is causing the dents, the body die or neck die.
 
Those look to be uniformly spaced around the neck/shoulder junction - are there four, by any chance?
Too uniform and too evenly spaced to be lube dents, in my opinion. There also seems to be a sharp point making the dent - think center punch.

As others have asked: which brand of dies? At what point did you notice the dents?
 
I am using a Redding body to bump the shoulder back, then a Lee collect neck die. I had done about 120 pieces of brass and 9 pieces has the dents. All but one (it has two dents) have only one dent and they are all pretty much in the same spot. I had notice them when I started to trim the brass (after using the body and neck die).
 
Those ones look like you have some walnut media in your die. I've done that by dropping lubed cases on the floor. Clean your die, or at least brush it out.
 
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So I took apart my die and had a look. There was a bit of junk in there. What I was able to pick out with a toothpick was pretty soft. I had used lube to bump the shoulders but I wiped them off. But then I got to thinking it was a brand neck die and I never cleaned it out before I started. Maybe a bit of grease and gunk was in there from the factory. I usually clean them out before I use any die but never thought of it this time. I am thinking there was something in there.
 
I love the Lee collet dies, but from the factory I've found them to be a bit rough as far as finish.
I clean out the oil, give them a light polish on the inside because the slots are a bit sharp and leave a more pronounced mark on the neck, and I polish and grease the outside "ramps" on the collet and they work slick after a litte help.
And make sure you don't operate it empty.
 
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