Only thing I might add would be number of times brass has been fired.
Keeping a brass list can be helpfull if you have a sudden change in brand or lott of brass and or length due to trimmer changes. Also how long since annealed to catch splits before they start happpening.
Some loads may be great with one brand of brass and even better with a different brand.
All depends on your shooting requirements.
If you have the space, might even save the paper targets for future reference. Date them and record same info on target as in log. Seeing is beleaving and noticing suttle differences in point of impact with a different primer for example can help.
Also note and be consistent with measureing of groups. Some of us go outside to outside or in my case app center to center with digital calipers. However you do it, be consistent with all notes.
There. another 2 cents worth 
Later
DF2
