"who has some time, a chronograph, and a warm place to shoot [8D] "

Particularly the latter......

As cayugad says, "I think that as long as you try to stay consistant you should have good accuracy once you find your load." AMEN! This also applies to how you start your bullets, and the pressure with which you seat them on the powder charge......

I composed a lengthy reply to this thread but the system ate it when I hit OK. [:-]

Anyway, that ratio of weight to volumeLane got with T7 FFg is consistent with not only my own but a number of others that combined results to get an average relationship for THAT powder only. Deviations in that effort were quite small. I've not experience with the APP stuff, sorry.

Thanks for the info guys.

I could see some changes from lot to lot happening. I'll keep checking the volume/Wieght ratio on each new pound.

I've been thru 4pounds of APP and 3lbs of Goex Pinnacle, and 1.5 lbs of Shockey Gold and they all wiegh out within 1 to 3 grains of each other.