According to QL, with an OAL of 3.780" (what my rifle is set up for) 300g SMK, and 28" tube, with H1000, the MAX load is 90.8g for 2740fps. Pressure is 63, 700. I am getting anywhere from 2800-2850 w/89-92g of H1000 (depending on lot) from my rifle though.
I think you will see that the nosler brass will have looser primer pockets on the 2nd or 3rd firing, from what I have read/heard anyways, while the rems will stay tighter to at around the 4-5 mark. I've shot the remington 300 RUM brass 8 times before I tossed them, still holding primers, but I figured better safe then sorry. For the price and performance of nosler brass, I will continue to use Remington. I dont weight sort it or any of that other crap, just take it out of the bag and load it with a 300g SMK and I have no troubles hitting my 15" gong at 1K.