Another +1 for Schuetzen. I've used it in our competition shooting and in doing youth instruction. As far as accuracy, no difference I can see from regular Goex. Is it better, YES in a couple ways. I've found that when shooting minies, if I use Goex, I have to wipe about every 15th shot. Not so with Schuetzen. Same charge, same lube, no wiping at all for almost 60 shots straight and no loss of accuracy. In my competition shooting, it's Swiss without question. And it's a Schuetzen product.
Let's be very very clear here. Schuetzen Energetics is a Company Name. Goex is a Company Name AND the name for their bottom tier product. Schuetzen is the name used to refer to the bottom tier from Schuetzen Energetics. Goex had a premium grade powder for discerning shooters and competition types called Old Eynsford. Schuezten Energetics has a similar product called Swiss, and it's hands down the best you can get.
One more thing I hold against Goex, they don't support work in youth shooting programs. They wouldn't return my calls or emails requesting support. When you process upwards of 400 kids per summer through a program, you're not buying powder and caps out of pocket, they have to be supplied somehow. Schuetzen Energetics supplies us with both powder AND caps for the kids and cuz of that, Tambi and Schuetzen Energetics are tops in my estimation. Any company that will put their product where their mouth is to support youth shooting sports is going to be in my powder magazine and I'll always be vocal in my support for their products. Goex can pound sand.