So my nephew used my Howa bolt 7.62x39 for the Wi youth hunt. Handloads of 150gr Sierra pro hunters at 2260fps using CFE BLK. Shot a big doe at 75 yds. First round was quartering at him. Entered behind front shoulder, exited opposite side front of hind leg taking out part of a lung and liver. Second round broadside behind shoulder, top of heart. Dead dear. Was dead on the first shot but follow up shot when turned was within 2 seconds. Was very impressed with performance.