eaglenester.
That is one reason why the 10/10 is so superior to 505's and it's peers.
The settings, they are
locked down with a grub screw bearing on the 1/10'th gr. graduated rotating barrel.
Short of jarring the whole scale off it's zero, the charges will stay exactly where you set 'em.
Also, 10/10 has the "approach to weight" feature ... a real time saver.
Dump the charge a half grain light from the measure, twist the trickler a couple times, beam rises steadily to .. bingo. All done. Next.
resorted to a digital electronic scale. No more mistakes or overloaded loads.
My experience is opposite.
The last digi, a Dillon Determinator, caused such grief as to burn a new custom 6.5/06 barrel to cinder(1000rnds) chasing loopy charge weight variations. Never did get a LR load together for that one before it was too late.
A couple shots at comfortable max., then a soft one, then hard bolt lift and ejector marks/loose pockets. All at identical charges according to dillon.
Drove me batty figuring out the cause .... a wandering scale, reading the same with more/less powder in the pan. Turns out it was positioned too close (3 feet) to a flourescent light ballast. Dud scale.
Can't trust those wired up gizmo's anymore.
They do get used to weigh brass etc. ... but never powder.
Ironically, the 10/10 is noticably faster over a loading session.
And, I trust my cart's once again.