Testing 12 & 20 Gauge Shotgun Blanks

Trying out some home-loaded 12 and 20 gauge smokeless powder blanks. Sometimes called "Popper-Load Shotshells" these blanks are loud and should be suitable for dog training or field trials in open areas and for use at longer distances where a primer only blank is not sufficiently loud. These blanks were assembled with common reloading supplies, not requiring hard to find card or fiber wads.