I am running 66gr if R26 with the 180 M’s in my 7 wsm. 67 had no issues but always seemed to drop one out of the group just a bit. 3060fps with single digit sd’s from my 26” barrel.

67 gr group at 200:
[Linked Image]

Can’t cuss either load but didn’t see a need to beat the gun harder for 40fps and a little less group.