Lonewolf74
Well-Known Member
- Joined
- May 12, 2016
- Messages
- 735
I use an RCBS beam scale to verify all of my powder charges from my RCBS charge master.
This showed me that the charge master would drift or vary .2 grains but if I watch the beam scale very carefully I can get each charge with in a couple kernels of powder. I know this has been a big step in getting more consistent and better ES.
Now as far as repeatability of the beam scale I'm not positive on. I'm sure that each charge within a loading session should be very exact but I don't know how exact it is from one day to the next. So for example during a session my charge weight is 44.1 and I'm confidant i get each charge within a half tenth of that. But the next time I zero the scale and reload I'm still confident each charge is within half a tenth but it may be a tenth off (44.0 or 44.2) from the last batch.
I think a guy could account for this by having a test weight that you zero the scale to each time you use it instead of just setting the scale to zero but I could be wrong on that.
This showed me that the charge master would drift or vary .2 grains but if I watch the beam scale very carefully I can get each charge with in a couple kernels of powder. I know this has been a big step in getting more consistent and better ES.
Now as far as repeatability of the beam scale I'm not positive on. I'm sure that each charge within a loading session should be very exact but I don't know how exact it is from one day to the next. So for example during a session my charge weight is 44.1 and I'm confidant i get each charge within a half tenth of that. But the next time I zero the scale and reload I'm still confident each charge is within half a tenth but it may be a tenth off (44.0 or 44.2) from the last batch.
I think a guy could account for this by having a test weight that you zero the scale to each time you use it instead of just setting the scale to zero but I could be wrong on that.