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

[SHORT-N-SASSY]

All the talk of 224 Valkyrie has stirred suppressed emotions . . . made me look long and hard at the ballistics and 105s out of a long 6mm Grrrrrrr approach 6.5 CM 130 grain ballistics. What's not to like about that - especially when all you need to do is buy a barrel! . . .

Under the topic, Is there a Hornady 6mm Grendel Improved, in the near future?, I today emailed Jason Hornady, Vice President, Sales & Marketing, Hornady Manufacturing, Inc. ---