I have put together data from the many shooters that emailed/PM'd me. Here is what I have so far but I am still asking for more data to be PM'd to me so I can continue to add to this. Thanks to everyone who contributed to this. As always this data is for specific rifles and should be worked up...
I have shot roughly 500 rounds through mine this year. Trying multiple bullets. Two of the most accurate bullets in mine have been 175 SMK and the 184 Berger. Both over 66.3 grains of N570 running about 2900 fps. Fed GM 210 primer. Of course start a little lower and work up. This load is mild with no ejector mark.
I shot an antelope this year with the SMK at 650yds and have decided to try the 184 Berger next. The SMK seemed a little too explosive for my liking. I know others are getting more velocity than I am. I am very pleased with the cartridge.