I only loaded a box-I was careful to transfer one shell at a time to another place in the loading block as I went through the process,one step at a time.I did look at the charged shells, making sure I had a charge in each one,and they did look a bit low-but not enough to alert me I had made a mistake[overloading the 9,3x57 would be pretty appearant due to case capacity]Oh well,at least I know I have 20 carefully weighed charges-5 gr under what I wanted.
The 9,3x57 is considered a ''short range'' under 200 yard caliber[although that exceeds my average shot by about 3 times anyway]so I'm not sure what effect a 42 gr charge would be vs a 47 gr charge behind a 286 gr soft nosed bullet in actual hunting conditions .I;m not sure how critical IMR 4064 is either in terms of pressure.Ironically-I decided to weigh each charge because I can't seem to get the powder dispensor throwing the same charges
However-I certainly agree I made a fundamental and potentially dangerous mistake-miscalculating a load.I think I will use the 45 gr lee dipper in future to put the main amount on the scale,then top up the extra grains to the desired amount.That should avoid a similar mistake.Of course-now that I am aware of the correct scale increments,I won't make that mistake again...