Originally Posted by
Whiterabbit
If you corn, no need for gum or dextrin. And when you corn, the grains stay cohesive much better than mixing in the additives.
Compression is really helpful.
But if you corn, make sure you go very easy on the water. If you put too much with additives, it's easy to let it sit for awhile (weeks) to dry. When you corn, all that water you put in is coming right back out immediately, so it becomes a MESS if you use too much. I'm at the point of using a teaspoon of water for every 1/4 pound of powder. I'm not measuring, it just seems like that kind of ballpark. It really doesn't take much.
Frankly, I'd suggest you source a can of goex and play with loading before making your own. No need to put the horse before the cart.