Fox Collectors

When reading about Foxes (usually those Foxes designed for waterfowling) the term "tight chambers" is often mentioned. What's the definition of "tight chambers"? Did Fox offer dimensionally different sized chambers?

perhaps "tight chokes" might be more accurate if speaking of long range duck guns? Forcing cones may be another consideration...either way, chambers, in my limited knowledge, are a length, not tight or loose?

Nope. It is "tight chambers." See this chart from Ithaca Gun Co., the nominal diameter of the 12-gauge chamber at the mouth (B) is .798" for a 2 3/4 inch or .7968" for a 3-inch chamber.



The mouth of most unmolested Super-Fox chambers is .788" in order to be sure the cartridge is held in the chamber perfectly concentric with the bore. That is why the metal machinist ruler is a better way to measure Fox chamber depth then a nominal industry gauge.

Thank you for the explanation and info Researcher.

I found out about "tight chambers" on my Chicopee Falls, Mass 20 gauge Sterlingworth. The chambers stop a blade type choke gauge dead on at 2 1/2", but it has 2 3/4" chambers when measured with a steel ruler.

FoxintheHenHouse