Steve your not reading the whole thread.First yes you must use a binder or corn (press) your powder
or it turns back in to dust.Number two is if you just use a binder & don't corn it, forget the powder measure
& weigh it instead.
This has been addressed more than once on this thread.But I will go over it again.Screened powder with a binder
it much lighter than corned (pressed powder.So when you load it by volume in a powder measure your not
putting in as much.Lets say you measure 100 grains of screened powder, you are most likely only using about 65
grains.
Nothing wrong with screend powder, you just use more by volume.Corned powder is pressed with out binder
but is much more dense.So it is almost as heavy as store bought.
I hope I cleared this up some for you my friend.
Fly (one other thing)
Remember the guys at Hobby are fireworks guys
as I,m also.But making powder for guns is a little
differant.The kit they sent you may or may not have
black willow charcoal in it.The right charcoal makes a
big difference in performance.PM me if you need black
willow charcoal.But use what you have for now.