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I've come to the realization that neck tension, or lack of it may have played a factor in the issue of lack of pressure. My Lee collet die sizes necks quite tight, perfect for jacketed bullets but...

2208 worked well with 180 and 210gn cast so I'll stick with that but will have to work out something else for 160gn. I have AP70n which worked well. Wish I had more trailboss.

Is that a safety concern?

The powder was loose and slightly singed. Flew out of case when ejected.

Today I was doing some load development. 303, 160gn cast using 26,27 and 28gn of 2208. And, 243 106gn cast with 24 and 25gn of 2208. Both using win lr primers. All around groups weren't too bad but I...