What I have always done is to write the date and load on the back of an old business card and put that in with the rounds. I am lucky in that the company I worked at was always tweaking the name and I got lots of business cards. I have been retired 10 years and still have a box full.

My FIRST reloads were with a Lee Loader. New WW cases, WW primers and WW lead rn and 3.0 of Bullseye. I shot a jug full of water and it barely quivered and the water just dripped out.