yeoman
I am a reloader by heart, so I use to measure all my ML loads also... but after awhile I came to the realization their are some many variations in shooting a ML it really had no effect on my hunting accuracy. You can be sure if I were shooting paper for a living - I would weight loads and I would be buying powder by a lot number and I would be storing all of them in a specific atmosphered contolled environment. For hunting it is really not worth the time and effort. As I mentioned WAY to many varibles out there.
All that said you also have to remember that I am not hung up MOA - I want to hit somewhere in a 6" circle of my POA for hunting - 3" either way of my point of aim - I then have a dead animal. And in that that i want the bullet to get there as fast as I can get it there- with the energy to do the job.
Again if I were shooting paper i would back the load way down and just lob the bullet in for accuracy...