I noticed RWSgunsmithing did a custom barrel for the M, so i messaged him about the 6.5. He said he doesn't have an L to do testing on, but would be willing to work on a barrel. If any of you feel you can't wait on RA, maybe shoot him and email and see if yall can work something out. If he had several customers it would help with the cost of R&D.
There ain't many problems a man can't fix- with $700 and a 30-06!