Current 6mm Grendel barrel makers: BHW, McGowen and who else?

[StoneHendge]

1/9 or 1/10 or which other... one of my questions is what twist rate is preferred. I was -- idly -- looking at a 20" barrel but still not quite ready to pull the trigger. Or the 6mm mongoose, which I think is a 6mm Grendel wildcat.

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Nonetheless, the 105 Hybrids are very popular amongst the Baby S'more crowd and virtually all production barrels out there are 1:8. Sierra says 1:9 minimum for the 95 gr SMKs/TMKs. If you don't want to go bigger than the 95s, I would go with 1:9. If you do, I'd go with 1:8. But be cognizant that you may be limiting your range with lighter thin jacketed varmint bullets.