I went and bought a couple of boxes of 250 grain FTX bullets to make some 45 Colt and 454 Casull's for my 460V. Every thing I have is made for deep penetration and the FTX's supposedly dump all there energy in a soft target pretty quickly compared to the XTP's and flat nose I have. Well don't you know, bullets for 450 Bushmaster don't require a cannelure, that's what the 250 grain FTX's are rated for (.452). I ordered a tool from Buffalo Arms a couple of day ago and can expect it at the end of the week. I guess a trip to the range next week will be needed to test rounds next week, O the pain of it all.