I have just completed my spreadsheet listing each of the 268 bullets I currently own. First I listed them by MM#. Next I used the cross reference in the TT book to list by that number. I removed categories listed as N, -, or F/C if I did not already have bullets that fit those categories. I am now preparing to verify that each of the bullets I own are indeed what they are advertised to be. I guess this is where the sweat and fun begins. So I measure the diameter or average (take readings at several places to ensure accuracy). Determine fired or Carved from observations. Weigh each one in grains. Measure the length. Discern the cavity and compare to the chart in the TT book. Dimension cavity depth, List rings, grooves etc. Then make comparisons to the write-up and photographs. I can also check the database you guys have linked to in this site. Next check for casting features or any unusual thing worth noting. Have I got it all covered or is there more to consider? I want to be thorough, but do this only one time. So is this how it all works or is the avid collector always pouring over his collection reviewing old data? Thanks in advance for the advise.