Hi there! Been a long time lurker and enjoy all the advice given. I'm building an XP100 and need some advice on what chambering to go with. I have a 6mm/243 8 twist Krieger on the way and am having the project put together by Mr Tannel. I hope to use this pistol as an all around triple threat. I hope to be able to shoot paper at or beyond 1k, whitetails at or beyond 700-800 yards, and coyotes at both distances. My dilemma is the chambering. I handload a bit but nothing that requires a great deal of case prep. I'd like to shoot the DTAC, but with barrel length finishing at 16 inches I'd like some advice on performance. Will the 6BR in that short of a barrel have the velocity to perform well at 1k and a little beyond? Will the DTACs go subsonic at 1k? I like the barrel life of the 6BR. Do I need to consider the 6XC or 243AI to extend the range to 1k? Any advice is appreciated greatly.