I've documented a lot of it in this thread, but I'm using AA1680, VVN110, and Alliant 2400, and I've tried everything from 900-1200 fps. I've tried lots of combinations/charge weights/etc., burned through probably $100-200 worth of components, and I arrive at the same result. I'm going to keep experimenting though. In fact, as I'm typing this, my Chargemaster is metering out 2400 for supersonic loads. The supersonics are great. I killed a pig with them on Saturday. This may end up being a supersonic only rifle.
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