All right Jim ,velocity The heat factor miss , but at 1000 yards , if you try on hard steel the result is same , That just fun to play whit newton formula for energy , For the powder im just curious to see burning speed for my reload ... Im cannot know exactly year of the bullet, im make save because i dont want to take chance whit ammo build in wartime...
Look the lag after impact at 1000 frame seconde i think is resilience factor ?