The 450/400 is no cream puff by any means but it's about 200fps slower than the 458. The 450/400 is an old cartridge and it's brass isn't up to what the newer belted mags can take but like I said the nice thing is they eject easier. I agree too that owning a NE in a handgun is cool. I have plans to build one later this year but haven't decided on which one. The 458 Lott will come first, I know it's been chambered in Encore rifles but never heard of one in a handgun. I haven't talked to my customer about his 470 to find out what it's recoil is like. The one thing to consider with NE's is the cost of brass, the 450/400 isn't as bad since Hornady brought it back but some of the brass can approach 10.00 a piece and dies close to 300.00 which is why for a practical dangerous game cartridge I'm building the 458's.