I am going to weigh my powder charg with a scale and was woundering how much powder to use in an TC Encore 50 Cal with the SST 250g sabot.

I believe 777 is intended to be measured volumetrically. In other words 100gr. volume in a blackpowder measure might not equal 100gr. in weight. At the very least you might measure 100 gr. and then weight that in order to find the number you're looking for. Confused yet, or should I go on?

I'm not sure there's a good reason for weighing black powder or it's substitutes. It's just not efficient enough to tell the difference as is the case with modern propellents. Volumetric measuring is quick, easy and plenty accurate enough in the real world.

[ 12-03-2003, 09:08: Message edited by: Woodnbow ]

I just found my volume measure and weighed 120g by volume and it is around 100g by my Ohaus Navigator if I tap on the volume measure to compress the powder.

I just got an email reply from Green mountain barrel company stating that starting loads with triple 7 should start 20% less than pyrodex. Any idea why?

Triple seven is hot stuff.

As a general rule , how much should a 777 charge be reduced compared to pyrodex or black powder ?

I heard it is 30% hotter. The 777 50 grain pellet are smaller than pryrodex pellets also.

According to the brochure, reduce charges by 15%. I've been reducing mine by 10% as a guesstimation but that's changing right now. I like my guns too much to destroy 'em for a couple FPS!

I emailed Hodgdon and this is the roply
Reduce it by 15% for actual weight. So if the load calls for 100 grains by volume, weigh out 85.
Thanks,
Phil Hodgdon

Which is what you'd do for pyrodex, makes sense. The stuff works well, I like it.