I think you are more correct than I am. I contacted a friend who has access to M-1 carbines and asked him about the FPS thing. ( Believe or not the Department of Justice still has carbines with push button safety's in their inventory, circa 1940?) He said the Carbines chronographed at 1610 FPS to 1633 FPS with Military Ball. But he put some Winchester down range (110 Grain SP) that were kicking at 1840 FPS. SO the modern ones might be faster than I thought. Be that as it may, I shot a 160 lb. (Field Dressed) Whitetail Doe two years ago with a Browning BAR, 30/06,180 Grain Remington Soft Point than ran a measured 227 yards after being hit. When I opened her up, I found both lungs and the front of the heart blown to tatters. If I had been using a .30 Carbine, I would still be chasing her, or more likely the coyotes would have ate her. .30 Carbine for Whitetail? No way. You'll definitely wound more than you harvest.