I just received an email from XLR re: the new Element 3 chassis. In addition to the centerfire inlets, they are making it for the CZ 457 and the Tikka T1x. I have a 455 so I'm out of luck, but this adds another very good chassis option. They are also making a 2lb magnesium version. I have the gen 1 on a Howa and I still love it.