Shot shell Star Crimp


#1

I was asked two shot shell questions by a shooting friend.

#1–When was the star (or pie) crimp interduced. The earlist reference I can find is 1939 by Remington on their Trap and Skeet loads. Any one have a patent number for the star crimp?

#2–When were 2 3/4 inch 12ga. interduced?


#2
  1. Star crimp in France : 192

#3

JP-No, I did not think the 2 3/4 inch was new. My friend has an old double barrel shotgun with 2 3/4 inch chambers that he is trying to date. He knew it was older than 1895, but wanted the introduction date of the 2 3/4 inch as a clue to the oldest the gun could be. Thank you.

On the date of the star crimp, you mis-typed the last diget. Could you please repeat the date. Was this on metal shells or paper? Do you know when and who patented the star crimp in the U.S.


#4

[quote=“Ron Merchant”]JP-

On the date of the star crimp, you mis-typed the last diget. Could you please repeat the date. Was this on metal shells or paper? Do you know when and who patented the star crimp in the U.S.[/quote]

It was for paper shells.
Provisary patent number : 302 600 the 30 th of September 1930
Final number : 717 808

I have only all the French and UK patents, not the US ones, sorry.
I think an US shotshell collector knows for sure the answer.
JP