I am hoping someone can explain this to me. I bought my first chronograph and I am getting higher velocities than expected. Shooting a S&W M&Pc 4" barrel 45 acp. Load is 5.4 grns of AA #2, Fed 150 with a 200 grn Laser Cast SWC and RP cases. Very slight taper crimp. COL 1.220. No obvious signs of pressure on the spent cases. Chrono gave me an average of 940 fps. Accurate Arms load data indicates that velocity out of a 5" barrel with 5.8 grns of powder. The only difference in my load being AA data has a COL length of 1.190. Most posts are about velocity being too low but I am having the opposite problem here and I am worried that the load is too hot. BTW shot some factory ammo and velocities were what I expected so I don't think it is the chrono. Thanks