Quote Originally Posted by lostcat View Post
Thankyou for your concern,not sure where the confusion lies.
Probably 13.5grns of 777 by weight as I stated is not equal to 15.5grn of FFFG by volume.
777 has a density of only 73% equivilant to FFFG BP. then there is the -15% due to 777 giving higher pressure.
100 grns volume of 777 weighs 73grns.
I have no concerns as I have researched and tested findings of many charts and tables but it is a valid point.
Well I'm now totally confused. Grams and grains are units of weight, not volume. 100 grains cannot ever equal 73grains whatever it's made of!