In ballistic testing of armour systems, it is possible to shoot identical targets in order to establish figures for the V50 and V0 –the velocities at which 50% and 0%, respectively, of impacts are considered to defeat an armour pack....
My handgun shooting now is purely recreational: at steel falling targets, steel dueling trees and even stationary steel plates with an occasional paper target mixed in. RN types of bullets serve me well and in fact have some advantages. When casting, they veritably fall from the mould cavities...