Re: 100 gr. 6-.284 loading data???
I use R-22, IMR-4831, H-4831 and H-1000 in mine. R-22 gives the best velocity. With a 100 Sierra I use 52.5 grains of R-22 and I am pushing them at 3480fps. This load in my rifle will shoot under about 3/4 of an inch at 300 yards. Of course you will have to work up your load so I would start at 50 grains. If you build one I would build it on a long action and with a 28inch barrel that is what mine has. If you are going to shoot VLD bullets over 95 grains make sure to get an 8 twist. My rifle also likes the 95 grain Ballistic Tip and I use 53.0 grains of R-22 and they are going 3520 FPS and they will shoot about a 1 inch group at 500 yards and at 100 yards they are in the .2's with 3 shots. I hope this gives you an idea of what you can expect from a 6mm-284. I would also talk to FiftyDriver AKA (Kirby Allen) he has a 6mm-284 and he shoots 105 A-max bullets at 3550fps with a 30inch Lilja barrel and it is very Accurate.
Fast, Flat, and Accurate