I shoot the crap out of Winchester primers...
And the issue explained back a few posts isn't JUST with the small pistol.
I just went through a out 5K WSR.
Some natural brass, some nickel plated.
Dillon primer tubes HATE burrs, which I had one or two about every 300 primers.
It's a slow, tedious task to stop everything, clean out the dump tube, clear the burr/jam, put everything back together again and get running in the swing of things again...
For some reason, I had some nickel plates that would simply NOT feed down the primer tube on the machine...
I had to keep down force on the primer follower rod, just a little,
To get those suckers to feed.
They went through the sorter/unstacker/feeder wheel just fine,
They just did NOT like that tube.
The dump tubes worked fine.
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Then came those wonderful FORIGN made 5.56 brass with the short primer pocket!
Bang along for 75 or 100 rounds, then hit a shallow pocket and the primer crushes...
Nothing like taking freshly minted rounds apart, trying to get the swagger to hammer the pocket UP to a standard length,
Then see if the high pressure beating worked,
Or you wasted your time AND another primer...
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Mavrick,
You can't count on bulk brass of any kind being 'Consistant', head stamp or not.
Head stamp will give you an idea,
But you have no idea which machine that brass came off of,
If its a mixed lot, if some sat around in storage until they ran some more to make it worth packaging so its mixed with new production the presses might have cranked out a little different, ect.
With once fired brass, you have no idea of the age, plant, machine or even the load that went through it the first shot...
If you are bench shooting, CHECK EVERYTHING, EVERY CASE.
Track it all!
I'm sport shooting, a ton of that stuff isn't important.
I can't tell much difference in mixed brass with non compressed loads,
It's pretty much all more accurate than factory loaded rounds,
And it saves a ton of work for me.
There is everything in between,
Some guys trim for EVERY loading, some guys use a Go/NoGo gauge and only trim when the case gets too long,
I trim everything ONCE, to minimum, and never mess with it again.
It takes all kinds!