Chamber length

[Paul Harm]

Frank, even some of the early humpback auto guns had short chambers. A friend reloads for his at 2 9/16 - believe it's a 16ga. So yes, the shell manufactures would have made a number of factory shells what we now consider short.

[Researcher]

Originally Posted by Paul Harm

Frank, even some of the early humpback auto guns had short chambers. A friend reloads for his at 2 9/16 - believe it's a 16ga. So yes, the shell manufactures would have made a number of factory shells what we now consider short.

The Browning A5 16-gauge was made for 2 9/16 inch shells up to WW-II, and our North American ammunition manufacturers continued to supply 16-gauge shells in the 2 9/16 inch length up to the early 1960s. The 12-gauge A5 was made for 2 3/4 inch shells from the get go as was the Remington Autoloading Shotgun later known as the Model11.