Every sub load I’ve tried for 300aac with 1680 has been dirty, loud, and way slower than desired at around 950fps max. But it cycles flawlessly even at a pretty low charge. Is this pretty typical overall for 1680?

I’ve actually had better luck with IMR4227 for my sub loads, it’s much cleaner and seems to be noticeably quieter through the suppressor.

Ive always heard people talk about how great 1680 is for subs, but I’m not seeing it.

Maybe ill I’ll just try it for full power 6.8spc for my sons undergassed AR. Hopefully it’ll cycle that.

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