Just loaded the first rung but after giving him all the pertinent data he sent back a speed of 3300 with IMR 4227 but we will see once it passed over the magneto speed. His part number is 257067HV. Kind of odd but he suggests starting at max because of the drive bands. I started emailing him thinking the 85 was the ticket (maybe a bit more speed than the gameking) and a better hunting bullet but he said it was too long of a protrusion.