The range of charges shot to date is from 4.0 to 4.4 grains. The first two increments averaged in the 920 fps range with ES values of 33 and 28 in order. Groups were fair. The next step of 4.2, 4.3 and 4.4 grains all fell in the 950 fps range with ES values of 13.2 to 15.2 with exception of today's effort which was a repeat of the 4.2 load for 10 shots. Average velocity was 949 with an ES of 9. One group of 5 was .95". What baffles me a bit is the significant increase of velocity between 4.1 and 4.2 grains, followed by an apparent plateau where it levels out. But then, I love a mystery...
I think I mentioned earlier about 800X being unpredictable sometimes.
