POWDER = 7.5 GR. UNIQUE BULLET = 200 GR. Z-CAST RNFP PRIMER = WINCHESTER STANDARD OR MAGNUM PISTOL PRIMER SPEED = SOURCE = LEE I HAVE HAD EXCEPTIONAL OFF HAND ACCURACY WITH THIS ROUND SO FAR. SEEMS TO SHOOT VERY FLAT AT 75 YARDS. VERY LITTLE RECOIL AND NICE REPORT. JUST FEELS GOOD THROUGH A UBERTI 1866 LEVER RIFLE.