I purchased some brass from another member of Savage shooters. It had been shot once and neck sized, and then the individual had primed it and bagged it. I loaded a few with powder and seated bullets, but it wouldn't chamber in my barrel because of an apparent significant difference in chamber size.

I'm going to pull the bullets and dump the powder. Can I resize the brass without removing the live primer? If I need to remove, can it be done without setting the primer off?