BEFORE THE REDHAWK WAS AVAILABLE IN 45 COLT I HAD LINEBAUGH RECHAMBER A SS 5 1/2 INCH REDHAWK 44 MAG TO 45 COLT. FOR IT I LOADED THE 250 XTP OVER 28.3 grs OF WW296, CCI 350 PRIMERS, IN STARLINE CASES. AS I RECALL IT WAS DOING 1,500 fps +. IT WAS AN AWESOME LOAD ON EXOTIC DOES AT THE YO HANDGUN HUNT, AS IT WOULD "SUCK THE LIFE" OUT OF THEM AND NONE WENT FAR, IF THEY WENT AT ALL.