See Drew's post here for load info in the 1893 trials:
http://www.doublegunshop.com/forums/ubbt...age=5#Post85216 .
According to Greener in the 9th edition(p.301) at the turn of the 20th Century, a provisional proof load for a 12 bore was 9 3/4 drams(266 grains) of T.P. Powder w/ 547 grains of shot. T.P. was Tower Proof which was supposed to equate Waltham Abbey, R.F.G.2 and vary in grain size between 4 & 5.
The definitive proof load was 6 1/2 drams(178 grains) of T.P. powder w/ a 738 grain shot charge.
Kind Regards,
Raimey
rse
