POWDER =  4.6 GRAINS UNIQUE (CAUTION, CLOSE TO MAXIMUM PRESSURE RATING) 
BULLET    = 158 GRAIN Z-CAST LEAD RN OR LEAD SWC.
PRIMER    = WINCHESTER SMALL STANDARD PISTOL PRIMER
SPEED      = 850 FPS
SOURCE   = HORNADY HANDBOOK OF CARTRIDGE RELOADING THIRD EDITION
NOTES      = I HAVE USED THIS ONE FOR YEARS. SLOW MOVER BUT VERY ACCURATE IN MY COLT TROOPER AND PYTHON. VERY LIGHT RECOIL. MY STANDARD ROUND IN MY CARRY GUN.