[Carriage Hill]

They had a patent on it, since 1938, so it most likely was well into the millions.

http://pdfpiw.uspto.gov/.piw?Docid=D0110729&homeurl=http%3A%2F%2Fpatft.uspto.gov%2Fnetacgi%2Fnph-Parser%3FSect2%3DPTO1%2526Sect2%3DHITOFF%2526p%3D1%2526u%3D%2Fnetahtml%2FPTO%2Fsearch-bool.html%2526r%3D1%2526f%3DG%2526l%3D50%2526d%3DPALL%2526S1%3DD110729.PN.%2526OS%3DPN%2FD110729%2526RS%3DPN%2FD110729&PageNum=&Rtype=&SectionNum=&idkey=NONE&Input=View+first+page

[Tijeras_Slim]

The only Mossberg I have right now is a TR42 smoothbore .22. They made a miniature clay bird thrower called the “Targo Trap” that bolted under the barrel and chucked these 2 9/16” birds. The barrel was threaded at the end so you could screw on a rifled section and shoot it like a regular .22.

Lucked across the gun, finding the trap gadget and a hand full of targets took a lot longer.