Any ex-artillery guys here know how to use this?

[joelvca]

... and 8 was a rare overcharge that was a one piece charge we never used due to expense, barrel life, and lack of ranges long enough to use them in).

Way back in the day (I was in the U.S. Army), I was saw a demonstration firing of a 105mm beehive round, and besides the rather interesting effects on a bazillion balloons staked out for targets out to 100m or so, the breech recoiled farther than I'd ever seen on one of those. I was talking to one of the crew, and he said that that was at charge 8 to get those little darts moving fast enough, and cost 2 EFC rounds in tube life.