Originally Posted by yzm19
i have a load i am going to use. its 200gr smk and 90-95gr h1000. i was wondering if i just load up like 5 rounds per powder weight. like 90gr x 5rounds then 91 x 5rds ect. ect. untill 95.
You've got it right, but as far as over all length, their are alot of things to consider. Most factory, if not all factory guns in .300 rum have alot of freebore, so you probably won,t be able to seat out to the lands and still be able to load into the mag. You will have to do a few checks to find out OAL for your cartridge. I too will be working up a new load for a .300 rum as soon as it arrives. H1000 is my first choice, Retumbo 2nd pushing 210 vld's.