Damn, Trout, a voice in the wilderness. Typical powder measures throw match grade consistency, if operated with a consistent stroke. The charges in Federal Match are thrown by a measure, as is the powder in Black Hill's Gold, deemed the ne ultra plus in accuracy. Sure, some BR guys weigh each charge, but some BR guys do lots of things.
Warren Page in The Accurate Rifle writes about a whole bunch of case prep he did. One season he didn't do any of it beyond his first sort for consistency. His year long aggregate was no larger than the year before. But, next year he went back to his obsessive case prep, because it made him feel better. Same same with weighing charges!
Also - some BR guys throw charges because they think VOLUME of powder is a bigger deal than WEIGHT or mass of powder. The debate goes on... I consider BR guys to be my own R and D Team, and they have good ideas and prove a lot of concepts in their game - but that doesn't mean that we need to be their disciples.. Different game, after all.
My short course service rifle loads are roughly prepped brass, I trim with a Giraud and it chamfers. No neck turning. Good bullets and primers, and I use Chargemaster to load Varget into them. For the 600y line, I use 80s and I double check every charge on a balance. For the other mounds I use 77s and I only double check the funny looking ones. My National Match gun shoots these loads better than I do. I could dedicate more time to loading - but I load thousands of rounds every year, and did I already mention that they shoot better than me? So I don't see the benefit of adding eye-strain to my problems.
I use the "unchecked" 77 loads for Canadian Service Rifle and the carbine parts of the Law Games. Quite frankly - the demands for accuracy aren't that onerous, and the matches have more to do with "shooting" accurately, than they do with accurate ammo or guns.
For my bolt guns, I use chargemaster and I check every round on my beam. If it deviates from balanced by any more thant he thickness of the measurement line, I discard. These are 600m-1100m loads in match grade rifles - and that is plenty of rigour in reloading. Casings are turned and sorted by weight, etc. etc. In a test at 200y using Chargemaster "unchecked" produced groups indiscernable from ones I checked. I check anyway. Ritualistic behavious, maybe -- but pepper and flys**t might make a difference after 600m.
For everything I described, I used to use a Redding measure before I shelled out for the Chargemaster combo - as I said earlier - my Redding with a micrometer powder measure threw ball powders BANG-ON -- but throwing varget and H1000 caused me to tinker with every load to get the balance I wanted. The thrower would have up to 3-5 tenths of a grain variance using the big stick powders. With Chargemaster I generally get charges that balance every time - a lot less eyestrain and waiting for beam to balance. Each graduation on my beam equates to about a tenth of a grain -- and my fanatical standard for the thickness of the line is a variance of less than half of a tenth -- probably better. RCBS Chargemaster is pretty good if it is "supervised" properly! Maybe a better beam could refine this -- but I keep coming back to one thing here -- my ammo shoots in my rifle better than I do. So since the game is about SHOOTING, not reloading... my ammo is better than "good enough" and that's all I require, right?
But I still think that for "most" applications -- the powder charge is only one variable in a big pile, and perhaps not as important as we think. I would even suggest that if you're not sorting brass by weight - that weighing the charges becomes a waste of time since the pressure variances you see with different internal volumes are probably greater than half a grain in any direction would cause...
For pistol, I use a Dillon with a powder check die and my opinion is that the Dillon powder measure thingy is a POS -- but powder charge variance in pistol loads don't make a damn bit of difference until you get way out of control and do a double load or some fool thing like that. I would load my carbine ammo on the thing if I could, but I like to hand-prime all my rifle stuff. Old habit.