I personally do not, but there are a few guys on here running it,
@midnightmalloy and
@Scouter, scouter is using an improved version lil less taper, 37° shoulder. It's a hot round, I don't know why it didn't catch on. Has a .317" neck, 2.35" length, same capacity and more efficient design of the 7mag. Quite a few guys in New Zealand use it as well. Hot rodded can push a 180 Berger to 3100fps, 180 eld-m over 3k. If you message me a phone number I can send you reamer drawings for the CIP/saami print, as well as the improved version.