I don’t shoot much factory ammo but I have shot a bit of WW 150g and 170g .30-30. Here are the chrono results:
150g, Winchester
2411fps, 2 shot average, 4/17/2006
2464fps, 1 shot, 9/5/2006
170g, Winchester
2123fps, 9-shot average, 9/5/2006, box 1
2181fps, 4-shot average, 9/5/2006, box 2
2147fps, 3-shot average, 11/20/2005
2125fps, 3-shot average, 4/22/2006
2137fps, 4-shot average, 6/4/2006
2112fps, 3-shot average, 6/16/2006