How big is Ithaca NID 10 mag compared to a #3 frame Parker ?

[Bill Murphy]

Dave, you know me better than that. My PH Twist gun letters as 3 1/2". While you are researching the beginning of the Super X 3 1/2" ten gauge ammunition, I will dig out the date of the #6 frame PH manufacture and verify the chamber length. If it says 3 1/2", and if we are skeptical, maybe Chuck Bishop will confirm. I will post the serial number.

[Bill Murphy]

Serial number of my #6 frame PH is 118,498. Chuck sent me a letter indicating the 3 1/2" chamber. I'm sure he would confirm his research. It is a 1903 gun ordered by Iver Johnson, apparently, certainly, before the Western Super X 2 ounce loads. Dave has posted interesting information.

[Bill Murphy]

Parker Brothers posted maximum loads for their smallbore guns in the popular "Small Bore" pamphlet which were lighter than loads specified in orders for guns in the 1912-1918 era, which were 1 ounce loads. I have owned guns, 20 gauge 3" chamber guns, that were specified to shoot 1 ounce loads when PB didn't admit that they approved of such loads. They were #2 frame 20 gauges, but maybe some smaller frame guns were specified for 1 ounce loads, I don't know. Discussion continues.