XS-B3-1 tuning: "RESULTS:
Before: 14.3 Premiers averaged 425 fps and 1-inch at 30 feet. Hobbies got 487 average (slightly better groups).
After (with a 7-inch stub) 14.3 Premiers average 457 with one inch groups. Hobbies got 509 average.
BUT, with RWS Meisterkugelns at 13.1 grains, I averaged 495.9 (3 shots, SD of 1.4)and got a 3-shot group of 0.45 inch (red-dot sight). I now have an accurate, quiet 7.1 foot pound springer that is only 18 inches long, 27 with the stock opened. Built like a tank, too.
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