I am just getting started handloading, and could use some 45 ACP load suggestions based on the components I have to use. I'm using a combination of Hodgdon Titegroup powder, Starline brass, CCI 300 primers, and Rainier Ballistics 200 GR. plated round-nose bullets. The main problem I'm having is finding data on the Rainier bullet. One suggested Hodgdon load with a 200 Gr. Speer JHP bullet is 5.2 Gr. of Titegroup and a COL of 1.155. Would I be safe in reducing this by 10% to 4.7 Gr. of powder and starting at that level with the Rainier bullets ? What would be another more popular bullet that I could use for comparison purposes ? Appreciate any advice.