I always keep a small mag lite flashlight on my bench..the reason is to look inside all my cases after the powder has been dumped into them, Especially Pistol reloads, Double charges of powder are very dangerous and it is all to easy to do...I look down inside the cases with a light and it will stick out like a sore thumb.
This is not a safety thing, but may save you time. Dont handle Primers with your fingers..buy a good hand priming tool and dump the primers into it..oil from your fingers can kill a primer.
You can never have to many manuals..I often cross reference loads in one manual with other manuals and find a middle of the road load to start with and work from there.
NEVER NEVER Mix powders...if powder hits the bench, it gets swept up and thrown away...I knew a guy who decided that he could use powder that he raked into a powder can over a period of time...it was 3 different kinds of powder..I told him many times not to ever do this...well he loaded it up in his Ruger Blackhawk 44 mag one weekend, then came to work and told me his Cylinder blew in half...blamed it on the gun...i asked what powder he used...it was the mixed powder...STUPID is as STUPID does.
He is lucky he didnt get hurt or killed, or someone standing nearby. /ubbthreads/images/graemlins/crazy.gif