From "The Parker Story", the Remington vintage specification sheets on pages 164 to 169 call for a chamber 1/8-inch shorter than the paper case roll crimped shell for which it is intended.
So 16g run about 2 7/16" to 2 9/16"
The standard chamber lengths for all gauges at some point in the 30s became 2 3/4"
There are lots of threads regarding using long for chamber length shells, and NO data regarding the rise in pressure for 20g and 16g, and recoil will be sharp if the case mouth enters the forcing cone - not good for 100 year old wood.
Some modern nominally 2 3/4" 16 shells do run shorter (after firing). The black Remington 1 oz. Game Loads did but it has been reported that the do no longer.
|