Just came across this thread and thought I would add what I am using. I am shooting the following though an STI DVC Open:
Berry 124gr FP Hollow Base Thick Plate Bullet
7.9 gr HS-6
WSP Primer
COAL: 1.10 (remember this flat point makes it measure shorter than if it were a RN)
.
My last chrono session showed an average of 1429 giving a PF of 177. The comp works well at this and I don't worry about a sample missing major. The lowest I measured out of the 10 shots I chrono'd last came in at 1402 with a PF of 173 so I still have a nice margin.
Scott
