I use a oilfield tally book, as a log book for each rifle. On the first page or two in the book I record all the comparator measurements of bullets I use, rifle info, any upgrades to the rifle etc.
For shooting sessions I open book so that I have two pages to record across; date, weather conditions, load information,( powder& powder charge bullet & bullet weight, brass, & brass oal, # of firings for the brass), comparator measurement, across the header. I usually shoot 5 shot strings, so I list the shots down the left side of the left page and record poi vs poa, fps, for each shot in the string and anything I feel needs to be included across the open two pages , some times I draw a small replica of target in the right margin and record numbered poi by shot, at the bottom of the numbered string I will make notes and record group size, and every page I can tally the round count for the barrel.
Hope all that makes sense.
Yes, I am OLD SKOOL, but I have been doing it this way for ever, and it works for me.
