Gtimothy
Member
I must be getting old or just can't understand what I'm reading. I'm trying to set up my RCBS Uniflow Powder Measure to throw charges for .223 cases. I'm using Hodgdon Benchmark powder and want to throw a 25 grain charge. I'm using a Lee Safety scale (I know...) to verify charge weight. Here's where I seem to be running into problems. I zeroed out the scale with an empty pan hanging from the beam. I set the ball and slider to measure 25 grains then rehung the pan from the beam. I started to throw charges and weigh them while adjusting the powder measure. I got the charge weight to balance for 25 grains but the amount of powder looks way too low in the case.
I'm now at work and got to thinking about it and decided to have my wife do an experiment. I had her measure the weight of the charge on our digital postal scale (grams) then converted it to grains. According to what she told me, my scale is off by almost 10 grains!!!! Fortunately I only put together 20 rounds before I had to get ready for work but it has me befuddled that it could be that far off. I'm going to disassemble them in the morning and start all over.
Beside the fact that my scale is cheap, ( so am I) is there any other trick to this thing that I need to look out for? I can deal with under charges but if this had gone the other way....
Thanks in advance
GTC
I'm now at work and got to thinking about it and decided to have my wife do an experiment. I had her measure the weight of the charge on our digital postal scale (grams) then converted it to grains. According to what she told me, my scale is off by almost 10 grains!!!! Fortunately I only put together 20 rounds before I had to get ready for work but it has me befuddled that it could be that far off. I'm going to disassemble them in the morning and start all over.
Beside the fact that my scale is cheap, ( so am I) is there any other trick to this thing that I need to look out for? I can deal with under charges but if this had gone the other way....
Thanks in advance
GTC