Another correct answer! Who says country boys ain't smart! One thing--the spindle in the center pulls out of the base and inverts presenting a primer knock out pin on the other end. After one pushes out the old primer then you invert it again as shown in the photo to seat the new primer. Although I can successfully do 12 Ga. shells on this apparatus, it is a 16 Ga. Not that I use it on a regular basis.....
So now I guess you're going to tell me about the bayonets? Aren't you about due to post a curiosity of your own? Hey--did you get one of those 18 shot 3-barrelled revolvers yet?