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expander ball on sizing die ?

When all else fails- read the instructions. lol
Ha, need to re-read instructions for sure. I’m pretty sure all Forster says is to set the bottom 1/3 of expander ball at the vent hole on their dies. Like others, I have been using the Forster decapping rods on my other dies as well without the vent holes. They run like butter with Imperial lube products.
 
I always use the expander ball when sizing , Im not neck turning my brass and I full size to a minimum . What works for me is , I lube the inside of the necks with some RCBS lube on a Q Tip . The brass I'm using is on the thick side and it still will size smooth . I wet tumble so there's no build up , just make sure your lubing the cases . Removing the lube is another tumbling and after they dry will trim and chamfer , what I was have a problem with , being my brass is thick , when trimming with the RCBS TrimPro , I was getting a scratch on the inside of the necks , had to shave down the pilot a bit .
 

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