Stan,

I went to Thurmont this past weekend. I do not preload. The temps were cool in the morning and after looking at a random burn pattern on my neck after the warmup, I upped my powder charge about 1/2 grain for match 1. WELL, my gun shotguned the bullets all over the 10 ring. I was lucky to stay clean and get 1 X. I reduced the load by about .3 gr and the gun shot well after that...not withstanding the fact that I didn't. Had I been preloaded it would have removed the tendency to fiddle. I should have known better.