Hey guys I'm looking to start reloading for my remington 700 in 300wsm. Ill be shooting a 210gr. berger vld with a new pac nor barrel that is 31" with a 1 and 10 twist. I have seated the bullet out to 2.99 total length so that it will fit in my wyatts mag box. So I was wondering if anyone has some recommendations of which powder to use? I will be trying the new superformance as soon as it comes out but needed a back up just in case it doesnt stand up being that its a new powder. I have heard good things about re22 but not sure its totally temp stable is this true?