I broke down some of the later boxer primed CAC cartridges for the components a while back. Much of the powder had clumped badly and there was light corrosion inside the cases. I fired the primers, not wanting to trust then, and some were duds. I think that the powder was AR2201 which did not handle high temperatures that well. I use 32 grains of AR2206H which is below start loads but above the 60% minimum quoted for H4895.
Grandpamac.
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