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Found this chart made by Du Pont in 1936.
It's a medium size wall chart.
10 charts. Front and back print.
From the looks of it, it's how to calculate bullet ballistic.
Way over my head.
It's in great condition.
Anyone ever heard of this?????
Attachment 255175
Yep,except mine is somewhat newer. Would have to go hunt it down as it's stuffed in one of my book cases. Brought it to work and one of our techs went nuts and knew where there was a printer big enough to copy the whole sheet. Was reading it for days. Frank
I have one that I purchased just to allow me to share the Ogive drawings. I believe that to be fair use.