Sectional Density:
.452 230 grain: .161
.401 180 grain: .159
Velocity of the average .45/230 is 850 fps. The .40 S&W and 10mm Lite were 950 fps.
When using the original 10mm loadings that were in the 1200 fps area it made a BIG difference...once watered down it made none.
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