I'm just starting to acquire reloading equipment. The cartridges will be used for IDPA and related range work so I'd like to find a newbie-tolerant powder that I can use to load both 9 and 40. 231 and N340 seem like good choices based on what I've read, but it's very difficult for someone starting out to relate the load tables to the suitability of a given powder for a particular application. Any help would be greatly appreciated.