Stop the press! :)dedeye wrote:Jumping Frog wrote:What powder weight are you trying to drop, and thus what size hole are you talking about?
I've known people who ran a lb. of powder through their powder measure to address static issues, and then the powder seemed to flow much better.
If you are talking 115 gr bullets and powder in the 6.x grain range, the corresponding charge hole should be large enough to handle without powder bridging problems.
You guessed it. 115g bullet shooting for PD of 5.8 and it varies 5.1 to 6.1
I'm guessing you have one of two issues, only because I had a very similar problem. I have a Hornady LNL AP. After extensive research, I finally started pressing out rounds. I'm loading WSF for 124gr 9mm. Recommended charge: 4.0 to 4.7. My throws were between 4.0 to 4.6 with no adjustments. Just as I was about to call Hornady and politely tell them how bad this machine is, I watched some videos and found that I forgot to put in the small powder rotor. So, first thing:
Make sure you are using the small powder rotor and not the large one. This brought my precision from 0.6gr to 0.1gr.
During this process, however, I was also using a Hornady 1500 I think for a scale. I zeroed the scale, turned off the a/c, etc. Turns out the scale wasn't returning to zero. It could jump by as much as 0.4gr. When your whole range is only 0.7gr, I didn't want to load what I thought was 4.6gr and have it really be 5.0! I am convinced that those cheapy gem scales like the Hornady (and others) are worth what you paid for them. For something as critical as weighing pistol powder, I wouldn't take the chance. So I bought a GemPro250. It weighs to 0.02gr precision. And, it seemed to always weigh consistently. Every time I'd weigh an empty case, then weigh a loaded case, then empty the powder and reweigh the case, it came back to the same zero. Very nice. Not cheap, but good investment. So the next thing is:
Buy a proper scale.
Hope this helps!