Hey all. I am sure this subject has been touched in before but there are hundreds of pages here to go Through. I bought a Remington sps in a 300 Rum and am looking to build a load for it. Right now I use remington9 1/2 M mag primers, Remington brass, 89.6g of retumbo powder and 210g Berger vld's. What powder weight increments are best when moving up and down to find what your gun likes? Also, the Remington mag well will not allow me to make the COAL fit the chamber so I am stuck with near factory seating depth. Currently I am getting just above 1" at 100 yards but not consistently. Thank you for the help.