Sylvan, on the other thread you asked why I use pound-seconds instead of slug ft/secs. I use pound-seconds because that is the way the ballistics program I use lists it. If you want to convert my figures to slugs, be my guest. They are the same values, just a different (maybe old fashioned?) way of listing momentum values.

For those of you who don't have a clue what we're talking about: Slug - The unit of mass that is accelerated at the rate of one foot per second per second when acted on by a force of one pound weight.