Yeeeeaaaahhhhhh......That dude Backfire (youtube) does a rundown on cartridges and FT-LB energy. Fairly in depth.. I am absolutely no expert in this. 1000 yards is a looooooooong way for a hunting rifle.. Oh wait I'm not an expert..
After watching his &!tch session on a Caldwell BR front rest (that he used with hunting rifles with front studs in them, then tosses it into the bed of his truck) i unsubscribed from Backfire.