Nick,

I should have mentioned initially what the pellets were weighed on.

I don't have access to the Sartorious scales anymore - bugger

I do have a 5 dp balance at home, but it is an old Stanton SM12 two (2) pan :

http://stanton-instruments.co.uk/page18.html

and it would take a very long time to measure one (1) hundred pellets

(It took almost three (3) hours using the Sartorious !)

WRT reporting spurious accuracy in measurements, I agree - it seems to have taken a serious hold now that everything has a digital read-out !

Have fun & a good weekend

Best regards

Russ