RAJBCPA:
After using my Dillon RL550B for over 25 years it has proven to me its ability to give duplicate drops of powder every time. Consequently, I set it then check it a couple of times in the first ten drops of powder then never check it again for an entire reloading session which is often a couple hundred rounds.
But..... I use mostly spherical powders or very small grain powders and only occasionally short cut extruded powders. Even then some powders don't meter well at all and for them I use a Redding BR-30 manually on an adapter on the powder die but that is only one or two calibers of my over 30 different calibers I reload for.
I will never suggest anyone else do it my way. If the book says check the powder drop every 10 rounds then that is what I will suggest. If and when you get confidence in the Dillon powder measure then you can do it any way you want.
As an aside, reloading experts (that is not me) from testing have found that exact measurement of powder to better than a couple of tenths of a grain are a waste of time.The uncontrolled variables in reloading swamp out any advantage of measuring powder to much closer than a couple of tenths of a grain either way from nominal.
LDBennett
After using my Dillon RL550B for over 25 years it has proven to me its ability to give duplicate drops of powder every time. Consequently, I set it then check it a couple of times in the first ten drops of powder then never check it again for an entire reloading session which is often a couple hundred rounds.
But..... I use mostly spherical powders or very small grain powders and only occasionally short cut extruded powders. Even then some powders don't meter well at all and for them I use a Redding BR-30 manually on an adapter on the powder die but that is only one or two calibers of my over 30 different calibers I reload for.
I will never suggest anyone else do it my way. If the book says check the powder drop every 10 rounds then that is what I will suggest. If and when you get confidence in the Dillon powder measure then you can do it any way you want.
As an aside, reloading experts (that is not me) from testing have found that exact measurement of powder to better than a couple of tenths of a grain are a waste of time.The uncontrolled variables in reloading swamp out any advantage of measuring powder to much closer than a couple of tenths of a grain either way from nominal.
LDBennett