Shotshell dimensions

[Doctor481]

Can anyone provide the nominal lengths of unfired 12 gauge shotshells?
I know the 2 3/4, 3, 3 1/2 denotes the fired hull lengths.
Crimp method and manufactures will cause differences in length.
Just looking for a basic guideline. Thanks.

 

[Goatwhiskers]

Approximately 1/4" shorter unfired. GW

 

[DWT]

Winchester AAs are 2 5/16(length) x 12/16(diameter). This is the old compression-formed shell, not the HS.