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BCM
Durkin Tactical Franklin Armory
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Posted: 8/23/2017 5:01:34 PM EDT
Never mind.


Long story short seated bullets too deep.
Link Posted: 8/23/2017 5:12:03 PM EDT
[#1]
Just a thought: Did you anneal the brass? If you may have over annealed them resulting in too soft of a neck.
Link Posted: 8/23/2017 5:17:39 PM EDT
[#2]
Mic the bullets;mic the expander ball......
Link Posted: 8/23/2017 5:23:48 PM EDT
[#3]
Not annealed. And I'm still new enough to not understand what "mic" means.  Measure?
Link Posted: 8/23/2017 5:24:55 PM EDT
[#4]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Not annealed. And I'm still new enough to not understand what "mic" means.  Measure?
View Quote
Micrometer
Link Posted: 8/23/2017 5:28:20 PM EDT
[#5]
"Mic" means measure.


Crimp doesn't hold the bullet in place, neck tension does. All the crimp in the world won't increase neck tension.


Neck tension is set when you size the brass. As stated, check your expander or whatever you're using to size the neck and compare that measurement to the diameter of the bullets you're seating.
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