Remington Peters 410 Dummy rounds

[edgarspencer]

I've had them in several gauges, and figured they must have been a teaching aid, or a gunsmith might use them for checking chamber and rim depth. I never figured them to be a snap cap because of the lack of some sort of resistance for the firing pin (or hammer, in the case of a Parker) to strike.
I also have thought they were a statement about my not knowing exactly what they were used for. Yes, that's probably what it means.

[Researcher]

I've had these Browning Double Automatic salesman's demonstration dummies in my shell collection since one of the men at the Fredrick & Nelson sporting goods department that tolerated me as a teenager gave them to me.

Double Automatic demonstration dummies 01.JPG