Just a random thought - when the non-reloading neighbor said "the guy weighed the powder in the brass on a digital scale," could he have been mis-repeating what the guy that loaded for him had said?

Because, technically, I do weigh every charge that I throw "in the brass, on the digital scale." BUT - the important distinction is that I only do so after the round is loaded as a double check - I use a digital powder dispenser to throw the charges, followed by a check of every charge on a balance beam. I weight sort my bullets, and my brass too. The last step before my rounds go in the box is to run them all across the digital scale one last time to make sure I don't have any double throws.

So... If the guy told him, "I double check for double powder charges by weighing the loaded rounds when I"m done" or said "I double check my charge weights before I seat bullets by weighing the powder-charged brass," - either of which would be a reasonable reloading practice and safety measure... BUT, the non-reloading neighbor, not knowing the proper steps and not understanding what he really said, might have misunderstood him and thought he said "he weighed the powder in the brass on a digital scale."

Or... What if the guy is using a Lee turret press with Pro-disc powder auto-charger that throws the charge automatically, then takes each round out of the press and double checks the weight "in the brass, on a digital scale"? Perfectly reasonable reloading practice to do so, I've even done so myself. If a guy zeroes the scale on the brass, puts it in the press and charges, then reweighs it on the scale, it might slow him down a little, but that'd be a very reasonable reloading practice for safety - greater safety than for which the Turret Press with Auto-charger was designed.

There are lots of stupid folks out there, but I'm having a tough time understanding how a guy could throw charges into a case as he was weighing them out. What do you do when you go 0.1grn over? Throw out the whole charge and start over? It doesn't make sense how you would physically even do that, but any of the scenarios I described above COULD make sense, and might translate to the non-reloading neighbor as something different.

Hard closing bolts can be a factor of rifling jam or of insufficient shoulder bump-back. That's no excuse for not matching ammo to chamber, but if he's reloading to a book COAL and not bumping far enough back because he doesn't own the physical rifle, and the neighbor's rifle's chamber is relatively short, it's pretty easy for new reloaders to make that mistake.

Still not a great idea, but I just can't figure out how in the he11 someone would dispense into brass on a digital scale, so I'm really hoping the neighbor's description isn't accurate.