the reason the BR crowd has proven thrown charges is because most, if not all of them load AT THE RANGE. They have no building with zero wind movement to use electricity and electronic dispensors. Loading at the firing line has long since been a standard. This is also because a lot of them use more rounds in one match than say a 50-100rnd box may hold. So loading "on-the-fly" has been the accepted practice.
BUT, Like I said,...take a GOOD thrower,..Like a HARREL, and throw charges. THEN, weigh them on a digital scale. You will find that they are the same as if they were dispensed by a digital combo. I have done it, time and time again at home, and the reality is,..they are both the same. The difference is when you "short stroke" or don't keep in tune with your thrown loads,..the thrower may vary,...but the dispensor won't.
I have throwers,..and sometimes just like to see how the thrower does,..and for an all around estimate,..the dispensor does better.
Also,..some of the 1000yd guys have tried varying loads by a few .1"s of a grain,..and see ZERO difference at 1000yds. If you are in the "node", a .1gr variance means nothing,..throwers are just faster and don't require elctricity at the range.
Try this,..ever see someone throwing charges at a 600-1000yd match??? I havn't,..not that that doesn't mean it happens,...I just see what I see. Varmint BR matches use a lot of bullets for point blank work. You have only a spotter at 600-1000yds, no sighter target. SOOOOOO you don't get to track your shots by 1/4-1/2 a bullet hole. We show up with loaded rounds, and shoot. Funny how many world records have been set with digitaly dispensed charges and not thrown charges. I know a TON of guys who throw charges,....but even shooting my FACTORY CLASS rifle,..with dispensed charges during a LV/HV/HC/FC match, were they were throwing charges, I have not only won factory class,..but bested some of the strict benchrest rifle scores.
The dispensor technology in the PACT and RCBS units (made by PACT BTW) has made them a superb reloading tool. Although not as fast,..you can seat a bullet while the next charge is being dispensed. 6 of one,..half dozen of another. MHO