Let me know how your 2400 loads come out.... My results were mixed. Both tests appeared to have potential, but the shots 'strung out' vertically a bit even at 15 yards howbeit they were touching. Don't like the ES and SD I got over the number of shoots. Even throwing out the high and low it was still not good. I like to shoot at least 30 rounds over chrono to get a decent feel for the load.
17g 2400, 255g SWC, CCI-300 primer 1117fps Avg, 36 STD, 187 Spread (30 shots).
18g 2400, 255g SWC, CCI-300 primer 1131fps Avg, 35 STD, 138 Spread (29 shots).
17g 2400, 255g SWC, CCI-300 primer 1117fps Avg, 36 STD, 187 Spread (30 shots).
18g 2400, 255g SWC, CCI-300 primer 1131fps Avg, 35 STD, 138 Spread (29 shots).