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Normal Topic 50-70 Starline brass cracking (Read 2297 times)
jhm
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50-70 Starline brass cracking
Aug 10th, 2016 at 8:43pm
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I have some 50-70 Starline brass that is cracking in the area where the base of the bullet stops when seated to full depth. They are 450 grain bullets. I have only reloaded them three times. They were from a lot of 50 I purchased new a couple years ago. Should I anneal them? Not hot loads just 2f black with a fiber over powder.


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calledflyer
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Re: 50-70 Starline brass cracking
Reply #1 - Aug 10th, 2016 at 9:11pm
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In pistol cases that usually is from over expanding and then squeezing it all back straight- made even worse with a heavy crimp. Don't know if you are doing some or all of this, but ease up a little if you are. Oversized slugs may do it as well- but I think to do that much damage you'd have such cruddy accuracy from distorted bullets that you'd have mentioned that as well. Hope ya get it all worked out.
  
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march41
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Re: 50-70 Starline brass cracking
Reply #2 - Aug 11th, 2016 at 2:08pm
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Anneal!Had same problem with my 50/70 brass.Anneal every 5 or 6 loadings. I had 25+ loading after with  no case loss.JMHO.Bob Roll Eyes
  
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jhm
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Re: 50-70 Starline brass cracking
Reply #3 - Aug 14th, 2016 at 8:35am
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I thought as much..... I will anneal them. Thanks


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