Way back in the falls of my youth as I steadily climbed the cartridge ladder, I stopped at the 7mm RM for awhile and stoked it with the 154s which easily sedated a couple of pick-up loads of S.D. deer. They never failed to work well and though I have no doubt they will work well in the smaller 7s as well I'd be inclined try the 139-gr Horn too.
The 139 just seems to my mind to be a better weight for those cases. I have a new .284 (I'm going back down the ladder) coming my way this fall, hopefully, and I have the Horn 139 and 154-grainers already on the shelf just waiting.
I've found that the Horn Interlocks to be one of the most accurate bullets of all I've tried over the years.
