with the cartridge basics. Background: I'm currently loading about 10 other pistol and revolver cartridges on a Dillon 650 and have been an active handgun loader since the early 80's. I have my own test range and chrono. I have new StarLine brass and numerous primer brands and about 25 pistol powders on hand. I'm mainly interested in accuracy and target shooting, but related info is also important to fill in the missing background. I want to get the full context of loading 10mm. Here are my questions: • In 9x19 Luger one can very loosely categorize 115gr for "flat and fast", 124gr for general target work, and 147gr for SD and reduced recoil. Does that generally hold true across 10mm using 155gr, 170gr and 200gr ? • Does any one primer seem to to better ? • What are the ultimate accuracy powders for 10mm ? • What are the ultimate accuracy bullet weights for 10mm ? Allow me to say thank you for any input you can contribute.