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Gentlemen
I have in my hands today a 1929 Fox Sterlingworth in 16 gauge.
I measured the chambers and come up with 2 7/16. This seems short but appears to be quite normal for a Fox of this vintage.

What ammo is to be used?

Thanks
Mike

Mike, I like low pressure Polywad or RST, 2.5" or hand loads, low pressure, 3/4 to 7/8 oz. lead.

If you reload go to the 16 ga web site and get a copy of their reloading tables. Tons of information and different combos of shells, loads, wads and powders. I like the 3/4 and 7/8 ounce loads for clays. Hunting I like the B&P shells.

As built, your A.H. Fox Sterlingworth was intended for the 2 9/16 inch 16-gauge shells, which were the "standard" in North America for the 16-gauge from the early days until the 1930s.





My canned 16-gauge history --

16-Gauge History lesson --

From the late 1890s until after WW-I, the heaviest 16-gauge loads our North American ammunition companies offered were 2 3/4 drams of bulk smokeless powder or 22 grains of dense smokeless powder such as Infallible or Ballistite, pushing 1 ounce of shot. Those loads could be had in the "standard" 2 9/16 inch case or any of the longer 2 3/4, 2 7/8 or 3-inch cases. In late 1922 or early 1923, Western Cartridge Co. added the 16-gauge to their progressive burning powder loads called Super-X, but unlike the 1 1/4 ounce 12-gauge and 1 ounce 20-gauge Super-X loads which were put up in Western's 2 3/4 inch FIELD shells, the 1 1/8 ounce 16-gauge Super-X load was put up in their 2 9/16 inch FIELD shell. When the Lubaloy shot Super-X loads were introduced in July 1929, they were put up in Western's high brass RECORD shell, but the 16-gauge still in a 2 9/16 inch length case.

The 2 3/4 inch 16-gauge shell really began to get some traction when Remington Arms Co., Inc. introduced their Model 11 and "Sportsman" autoloaders in 16-gauge in 1931, chambered for 2 3/4 inch shells. While Remington's regular Nitro Express 16-gauge progressive burning powder load was put up in a 2 9/16 inch hull with a load of 3 drams equiv. pushing 1 1/8 ounce of shot, for their new 16-gauge autoloaders they introduced the slightly faster Auto-Express with a 3 1/4 drams equiv. charge pushing 1 1/8 ounce of shot --







I'm thin on Winchester ammo catalogues, but for sure by 1934, they were offering a similar 2 3/4 inch 16-gauge load.

The 2 3/4 inch Magnum shells with 1 1/2 ounce in 12-gauge, 1 1/4 ounce in 16-gauge and 1 1/8 ounce in 20-gauge first appear in the December 15, 1954, Western Cartridge Co. catalogues.

Western Cartridge Co. added a 2 3/4 inch 16-gauge to their Super-X offerings for 1938. From 1938 through 1942 they called this 16-gauge 2 3/4 inch Super-X shell "Magnum", even though it was still a 1 1/8 ounce payload. By Western Cartridge Co.'s March 7, 1946, catalogue the term "Magnum" was gone from this 2 3/4 inch 16-gauge Super-X shell. In Western's January 2, 1947, catalogue, the 2 9/16 inch 16-gauge Super-X shell was gone from both the chilled shot and the Lubaloy offerings, and their only 2 9/16 inch shells being offered were Xpert. This may have been an oversight, as the 2 9/16 inch 16-gauge Super-X shell with chilled shot is back in Western Cartridge Co.'s April 8, 1948, catalogue and price list, and the 2 9/16 inch 16-gauge Super-X loads remained until their last appearance on Western Cartridge Co.'s January 2, 1962, catalogue and price lists, where it is "available until stocks depleted." By Western Cartridge Co.�s January 2, 1963, catalogue and price lists the new Mark 5 was introduced and all the 16-gauge Super-X offerings are 2 3/4 inch. By the January 2, 1964, Western Cartridge Co. catalogue and price list the 16-gauge 2 9/16 inch Xpert shell is gone as well.

2 9/16th roll crimped is most appropriate but 2 1/2 will work if you are not going to reload. If you are going to load your own you can use any 2 3/4inch load data as the roll crimped round will have the same internal volume as a 2 3/4 inch folded crimped shell.

I probably should have included this as well in my response --

FOX CHAMBERS --

The only two A.H. Fox Gun Co. catalogues, that I have seen, that state chamber lengths are the 1913 and 1914. They both state 12-gauge guns are regularly chambered for 2 3/4 - inch shells, 16-gauge 2 9/16 � inch shells and 20-gauge 2 1/2 - inch shells. That being said, virtually every 12-gauge Ansley H. Fox gun made in Philadelphia (other than the HE-Grade Super-Fox) that I've run a chamber gauge in shows about 2 5/8 - inch. The chambers of unmolested 16-gauge guns seem to run about 2 7/16 inch and 20-gauge guns a hair over 2 3/8 inch. A very few graded guns were ordered with longer chambers. Savage began stating chambered for 2 � inch shells in their 1938 Fox catalogues.

All this being said there is a good body of evidence that back in those days chambers were held about 1/8 inch shorter than the shells for which they were intended. In the book The Parker Story the Remington vintage specification sheets on pages 164 to 169 call for a chamber 1/8-inch shorter than the shell for which it is intended. Also in the 1930's there were a couple of articles in The American Rifleman (July 1936 and March 1938) on the virtue of short chambers. A series by Sherman Bell in The Double Gun Journal showed no significant increase in pressure from shooting shells in slightly short chambers. IMHO I don't much sweat that 1/8-inch in 12-gauge guns. On the other hand when one gets a 20-gauge chambered at 2 3/8-inch likely intended for 2 1/2-inch shells I do worry about folks firing 2 3/4-inch shells in such guns.

So looks like 2 9/16 in a 2 7/16 chamber is what it it was made for.
OK, I have reloaded lots of 2 1/2 ammo with RST and Cheddite hulls.
All should be well.
Thanks
Mike

Interesting that the Super-X Lubaloy load seems to have remained a 2 9/16" shell (1 1/8 oz)--at least per the information in the 1940 Shooters Bible--although there was the 2 3/4", 1 1/8 oz "magnum" to which Researcher refers. In addition to Remington, Peters was also offering a 3 1/4 DE, 1 1/8 oz 16ga shell in a 2 3/4" hull by 1940.