I'm running them in a .270 Allen Magnum ahead of 93gn of US869/215 primers at 3340fps. That's from a 30" Lilja, 3 groove. Shot one doe at 250yds and looked like she hit the ground right before the rifle roared! Golf ball size entry/exit through the ribs with minimal meat loss.
This is an excerpt from a post I made on May 17th for a 270 WSM/170gr Hybrids.
"I had previously identified an accurate loadutilizing 67.2gr of Retumbo, bullet seated .015" off the lands (overall lengths 3.115"). This loads will just fit in the magazine with a little modification. The bullets are HBN coated with a muzzle velocity of 3050 fps fired through a 26" 1:8 twist barrel."
This round shoots under 1/2 MOA at 300 yards and 6 inch groups at 1000 yards (actually 955) on a calm morning. Really like this combo