Just as the title says: seems that, for me at least, I get better (lower) SD's using StaBall 6.5 when I just drop it straight into cases with a volumetric powder measure (relatively cheap Lyman Brass Smith) than when I weigh/trickle every single charge to within .001g/.02gr...
Chrono'd some leftover rounds that I had loaded, meticulously, for a match, and found that the SD's I was getting weren't great... even though I had weighed/trickled every single charge to within +/- .02 grains. My charge weight was 41gr, and every single charge was either 41.00 or 41.02 before it went into a case.
I got an average SD of 15 over 10 rounds. Shot another 10rds over the chrono... and got an average SD of 18.
Seemed wonky... I had seen better SD's than that when just testing 5-10 rounds here and there, but realized that this was probably the first time I had bothered to properly chrono the precisely-weighed loaded rounds.
So I had 20 "practice only" rounds left over that I had loaded before the others, that I just dropped straight into cases (dropping powder like this for 100 rounds only takes about 10-15 minutes, and that's going slow). Shot 10 over the chrono: average SD 6fps. Shot the last 10: SD 8.
I have noticed that when weighing every charge: the drops straight from the measure are almost freaky accurate. I'm using 41 grains, and once I'm up and running, maybe 6-7 out of every 10 drops are dead nuts on, and the rest are pretty much always within .05gr... every once in a while one will be off by +/- 0.1gr, but 99.9% of the time I don't see any more variation than that.
An example of what I might see on the scale after the drops over 20rds usually looks something like:
41.00, 41.00, 41.00, 41.02, 41.00, 41.04, 41.00, 40.08, 41.06, 41.00, 41.02, 41.02, 41.08, 41.00, 41.06, 41.10, 41.02, 41.00, 41.04, 41.00
Thinking I might just go back to just dropping the stuff...
Anyone notice anything like this with StaBall? Is this a "ball powder thing" I'm not aware of? Found this: http://bulletin.accurateshooter.com/2015/04/weight-vs-volume-the-great-debate/. ...but seems there's not a lot of info out there...
TIA
Chrono'd some leftover rounds that I had loaded, meticulously, for a match, and found that the SD's I was getting weren't great... even though I had weighed/trickled every single charge to within +/- .02 grains. My charge weight was 41gr, and every single charge was either 41.00 or 41.02 before it went into a case.
I got an average SD of 15 over 10 rounds. Shot another 10rds over the chrono... and got an average SD of 18.
Seemed wonky... I had seen better SD's than that when just testing 5-10 rounds here and there, but realized that this was probably the first time I had bothered to properly chrono the precisely-weighed loaded rounds.
So I had 20 "practice only" rounds left over that I had loaded before the others, that I just dropped straight into cases (dropping powder like this for 100 rounds only takes about 10-15 minutes, and that's going slow). Shot 10 over the chrono: average SD 6fps. Shot the last 10: SD 8.
I have noticed that when weighing every charge: the drops straight from the measure are almost freaky accurate. I'm using 41 grains, and once I'm up and running, maybe 6-7 out of every 10 drops are dead nuts on, and the rest are pretty much always within .05gr... every once in a while one will be off by +/- 0.1gr, but 99.9% of the time I don't see any more variation than that.
An example of what I might see on the scale after the drops over 20rds usually looks something like:
41.00, 41.00, 41.00, 41.02, 41.00, 41.04, 41.00, 40.08, 41.06, 41.00, 41.02, 41.02, 41.08, 41.00, 41.06, 41.10, 41.02, 41.00, 41.04, 41.00
Thinking I might just go back to just dropping the stuff...
Anyone notice anything like this with StaBall? Is this a "ball powder thing" I'm not aware of? Found this: http://bulletin.accurateshooter.com/2015/04/weight-vs-volume-the-great-debate/. ...but seems there's not a lot of info out there...
TIA