I plan on working up loads for the above two bullets for my 300 RUM. It is a Remington 700 BDL action with BDL bottom metal. For the 215 gr, I plan on maintaining the rifle as a repeater. I use Remington brass, CCI 250 primers, and preferably Retumbo powder (I also have 1 lb of H1000). I am looking for help with OAL and starting powder charge from someone who has already gone through the exercise. For the 230 gr, I am looking to maximize OAL. I plan on using the same brass and primers, but will try RE33 based on the reported gains people are seeing. Looking for help on OAL and starting powder charge. Thanks in advance!