Reloading .303 British : Digital scales

Even with the semi-progressive Dillon RL 550 I check weigh frequently. I actually have a fired, with the popped primer still in, case for each caliber, that I dump into to do this. as without that the powder meter fail/safe is a huge pain to cheat.

Also when I set up a "new" charge or batch I not only check weigh 10~12 rounds, but do some double & triple,if the case will take it, loads to get some average readings.

Even with powders like IMR3031 which has the supposedly difficult to meter long sticks are withing ±1/10 Gr.