I've recently noticed that quite a bit of my handgun brass (mostly magnum) is starting to get a really shiny ring near the rim. I know that this is pretty bad when it starts to show on rifle brass. How bad is it when found on handgun brass?
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October 20, 2010, 07:24 AM
It doesn't do the same thing rifle brass does. If it is resized down to the base all the way it is fine. Assuming you mean revolver brass. They do not separate like rifle does. They will just split longwise.
October 20, 2010, 07:28 AM
Most likely the ring left by the sizing die. Look next time you size some brass. It would be at the same level on the brass as the bottom of the die or slightly above.
October 20, 2010, 08:05 AM
I takes severe over pressure to separate handgun brass, and excessive headspace would most likely be involved as well. That is not a free ticket to load hot. As posted, it will split 99% of the time when it is time to give up the ghost. No big deal unless you are running high pressure loads in a hand cannon.
October 20, 2010, 12:16 PM
Look & feel inside the case for a stretch ring with an L-bent paper-clip.
If there isn't one, it is just a die mark on the outside and nothing to worry about.
October 20, 2010, 01:26 PM
Thank you gentlemen.
October 20, 2010, 01:48 PM
Assuming you mean revolver brass. They do not separate like rifle does. They will just split longwise.
Are you seating and crimping in one step? Sometimes doing this with a heavy crimp in magnum calibers will bulge the case slightly and the bulge will appear as a shiny ring next time you resize. Are you shooting any of this this outta a lever action carbine? Lever actions lock up at the rear and their action can spring when shooting heavy loads, thus stretching the cases and leading to separation. This is why most reloading manuals recommend sticking to virgin or once fired brass when using heavy loads in handgun caliber levers. Too many heavy loads in big boomers can lead to case head separation also. I only load my .460 brass 4 or 5 times before it get turned into plinking ammo.