Just loaded three sample loads with 147gr. Montana Gold bullets, O.A.L. 1.1" on all loads and got the following results:
1. 4.5gr avg. - 1,022fps
2. 4.6gr avg. - 1,004fps
3. 4.7gr avg. - 976fps
Why is my velocity going down as the load increases. All loads were once fired, mixed brass.
Thanks for your help.