Thanks for the advice RC. I do have check weights and the brass is being thrown similar to factory loads. Seems peculiar to me to be getting these chrono readings but maybe as you say I have a "fast" barrel.
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...
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