[QUOTE=Todd Poe
Also you seem to like the 16 gauge. Mine is a 1907 construct year that is factory chambered at 2 3/4. Is that rare in your opinion for these type guns in an era of 2.5 thereabout chambered guns. Also if its a 28 inch barrel did they forge the same and bore out a blank to meet the 2 3/4 chamber but did not extend the thicker metal down the tube into the forcing cone. Probably not explaining that right.[/QUOTE]
I prefer the 16 over most others. The standard Parker 16 has 2 9/16 chambers . It is easy to mismeasure. If yours truly has 2 3/4, I suspect the chambers have been lengthened. Your V grade 16 /28 is likely on a No. 1 frame which will be about .110 wall thickness at the forcing cone and unless honed out will have a nominal bore of .660 diameter, leaving a likely wall thickness of .030 to .035. This is more than enough to bear any normal cartridge.
Remember that choke is over rated. The difference between game effective chokes of full and IC at 40 yards is about 6 to 8 inches. Open chokes add inches whereas misses are usually by feet. If you are concerned about blowing up the bird, wait a little longer or go to a small shot size. Most game is shot within yardage where 71/2 size is effective. As an example, here is what Parker tells us in The Small Bore Shot Gun. You can see that an effective killing circle ( six pellets on the bird) at 25 yards is 28” for cyl, 22” for Mod, and 18”for full. These are diameter, so cyl bore at 25 gives the shooter only 5 inches over full choke . So this tells me to practice shooting rather than worrying about chokes, or simply moving to smaller shot.
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