I made myself a basic powder horn. I've always used brass flasks in the past except for one cheaply made horn I purchased to hold the powder so the finer points of horns are new to me. I'm having difficulty keeping the wooden stopper in the pouring end of the horn. It pops out too easily. I didn't have this trouble with the cheap store bought horn. I no longer have that horn, sold it years ago, so I can't compare what they did right and I've done wrong. I know it's got to be something to do with the taper of the plug vs the hole. Anyone have any thoughts on this matter?