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Annealing marks

Lucreau

Lucreau

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Minuteman
Oct 30, 2017
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Have an ugly annealer and did about 50pcs today. Annealing until it just flashes orange while in a dark room and I’m getting these dark spots on about 2/3 of the case neck. I’m assuming it’s the last spot that the flame hits?
In the pics I’m rotating the brass
 

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Lucreau said:
Have an ugly annealer and did about 50pcs today. Annealing until it just flashes orange while in a dark room and I’m getting these dark spots on about 2/3 of the case neck. I’m assuming it’s the last spot that the flame hits?
In the pics I’m rotating the brass
Click to expand...
To me, it looks like left over residue from cleaning being burnt.
 
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Perhaps the brass stops spinning just before it drops, or sometime during the process ?
 
Looks like left over residue as noted above. Maybe sizing wax?

I anneal as my first step in reloading so only have powder residue which doesn’t do that on mine at least
 
Are you doing stainless tumbling? I have seen kinda similar marks when annealing if I didn’t wash the brass really well and still could had a thing layer of soap or cleaning agent on it.

I get very small blue marks sometimes that I think are that.
 
Kadams1563 said:
Are you doing stainless tumbling? I have seen kinda similar marks when annealing if I didn’t wash the brass really well and still could had a thing layer of soap or cleaning agent on it.

I get very small blue marks sometimes that I think are that.
Click to expand...
Yeah I’m using steel chips. That was my thought as well was there might be some soap residue left ovsr
 
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