I have a Sako Tecomate in 270 WSM, shoots bugholes with Federal Premium 150 grain Nosler Partitions. I shot a 5x5 raghorn in Colorado 3 years ago with it at 300 yards. Two shots to the lungs, one high and one low, both shots were complete pass through, lungs were jellied 2" around the bullet holes. The bull went 5 yards.