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Old June 4, 2014, 11:35 AM   #8
F. Guffey
Senior Member
 
Join Date: July 18, 2008
Posts: 7,249
Quote:
I've been using factory ammo since and haven't had any problems.
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If you sized cases will not chamber you are most likely not setting up the die correctly. It sounds like the die is not screwed far enough into the press and is increasing the brass shoulder length instead of shortening it. How are you installing the die?
You can make a comparator, you can purchase a comparator, you can read and do research, a comparator is used to compare. You fired new ammo and did not experience a problem. You should compare the fired cases with your sized cases if you are having trouble chambering your reloads. If you are having trouble extracting your reloads you have to consider you are creating too much pressure with your reloads.

High pressure and extracting the case: A case has spring back, spring back is something like a memory as in the case remembers what it was before it was fired. There is a big chance you knocked the memory out of the case meaning the case has no memory of what is was before it was fired. In that situation the case expands and flows and does not snap back, spring back or jump back.

Then there is sizing, the die is adjusted to the shell holder, there is absolutely no reason for a beginner reloader to get fancy. I would suggest you make sure the die makes it to the shell holder before lowering the ram, a gap between the bottom of the die and top of the shell holder indicates the case did not get sized especially if the cases were fired with heavy load or as they say "a machine gun".

F. Guffey
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