my best load is 7.5 g of 2400 let me give you some info most powder co. run a tollerence of + or - 10% thats 20 % eather way from lot to lot when you talk about only 7.5 grains of powder thats a lot of diff so plain on re zeoring between cans of powder i try to buy 8 lb at a time if you have any more questions feel free to e mail me at shoot_ranger@yahoo.com