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Discussion Starter · #1 ·
I was just wondering if shells shrink, increase in length or stay the same the more they are reloaded. I did a quick internet search and found nothing. Any observations? My gut reaction is that they may shrink as I notice the crimp is not as deep the more times I reload them, but I guess that could be due to other factors.
 

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The overall length remains the same. It is the inside dimensions
of the hull that changes. This changes the hulls capacity, which results
in a change in crimp depth. HMB
 

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The factory Winchester AA shells shrink after they have been boxed up at the factory. LOL

So to get the hole out of the crimps when you reload them you need to make them shorter than most other shells.
 

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I've gone so far as to keep the shells in a box together for life and to record the number of reloads on each box. That way I can make the needed adjustments to the final crimper to keep the crimps at ±.060".
You must really really like to tinker!!! That or you have a very cold winter??? Now don't get me wrong I like to tinker too, but not that much. break em all Jeff
 
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