.277 (.270) caliber

Below, a spiker Red Deer shot with the 150 grain Hornady SP. Impact velocity approximately 2600fps. The donator commented that the deer stumbled for approximately 10 yards, then collapsed.  The donator also stated that the 150 grain Interlock has been very consistent with similar body weights at the same 2550-2650fps impact velocity, producing broad internal wounding and wide, free bleeding exit wounds.



Below is the result of a 110gr Barnes TSX, used on a Mule deer, body weight approximately 140kg / 300lb. MV was 3400fps, impact velocity approximately 2580fps. The deer went a few steps, then dropped and expired.  The projectile did not encounter any major bones, only ribs.   This excellent performance was achieved via two mechanisms, high velocity giving high down range retained velocity (within ordinary hunting ranges) and a light bullet weight, ensuring maximum target resistance (lower bullet momentum), all helping to ensure maximum energy transfer. This projectile does its very best work out to 300 yards (in the .270 Win), and remains generally clean killing out to 400 yards providing a good measure of resistance is met on impact.  At impact velocities of 2200fps and below, bullet designs that shed weight come into their own.