Here is the rest of his data:
10ga 3 1/2" 140gr 1 5/8oz Rem 209P .125 card .5 fiber .125 card
Goex FFG 1150fps 6,100psi
Elephant FFG 1100fps 3,500psi
Pyrodex RS 1200fps 5,500psi
10ga 3 1/2" 140gr 2oz Rem 209P .125 card .5 fiber .125 card
Goex FFG 1100fps 6,000psi
Elephant FFG 1050fps 4,100psi
Pyrodex RS 1150fps 6,100psi
16ga 70mm 90gr 1oz Rem 209P .125 card .5 fiber .125 card
Goex FFG 1200fps 6,200psi
Elephant FFG 1050fps 3,300psi
Pyrodex RS 1150fps 6,600psi
16ga 70mm 90gr 1 1/8oz Rem 209P .125 card .5 fiber .125 card
Goex FFG 1150fps 6,300psi
Elephant FFG 1000fps 3,900psi
Pyrodex RS 1050fps 7,100psi
20ga 70mm 80gr 7/8oz Rem 209P .125 card .25 wool felt .125 card
Goex FFG 1300fps 5,000psi
Elephant FFG 1150fps 3,400psi
Pyrodex RS 1200fps 4,500psi
20ga 70mm 80gr 1oz Rem 209P .125 card .25 wool felt .125 card
Goex FFG 1250fps 5,600psi
Elephant FFG 1100fps 3,500psi
Pyrodex RS 1200fps 6,500psi
20ga 70mm 80gr 1 1/8oz Rem 209P .125 card .25 wool felt .125 card
Goex FFG 1100fps 5,800psi
Elephant FFG 1000fps 3,500psi
Pyrodex RS 1050fps 6,700psi
The interesting thing is that for him, Elephant FFG always produced the lowest pressures in his tests. This may not be true today. If any of the makers changed their formulation.... This data is from 2001. It was common practice in the proof houses to measure each batch of black powder. They all had to be "adjusted" to produce consistent pressures.
Pete