Sur wikipédia une petite historique du projectile Semi -Wadcutter immortalisé par Elmer KEITH
The Keith Style Bullet
Keith was also responsible for a number of bullet designs still popular today, and collectively called "Keith style" bullets. These bullets were based on the semi-wadcutter design, but using a wider than normal front surface, and convex sides. These changes increased the volume of the bullet outside the case, thus allowing more room inside the case, needed for large loads of slower burning powders (see internal ballistics). These bullets remain popular for both target shooting and hunting. When shooting paper targets, they cut a relatively clean hole in the target, yet provide more case volume and a better ballistic coefficient than a flat front wadcutter. When used for hunting, the heavy bullets provide excellent penetration; they are often used on dangerous game, for which more reliable penetration than is possible with expanding hollow point or soft point bullets is required. The relatively sharp edges of the flat nose and shoulder cut tissue, rather than pushing it aside like a typical round nosed bullet, which results in more tissue damage and faster incapacitation of the target.
Accueil 
