303 British Chamber Diagram

[Alan de Enfield]

I found this one with the help of Google. Anyone have a better one?

If it any help this is the one published in the book "Textbook of Small Arms 1928"
It is the military dimensions of the cartridge and chamber.

Note - non of this 'namby pamby make it thin' requirement as per the SAAMI drawings 0.064" +0/-0.01" (military requirement for case rims was 0.058" to 0.064")




And the chamber dimensions from the 1943 dated blueprints (engineering drawings) for the No1 Mk3 which I think you have already seen.


I have the set of fully dimensioned drawing of every part and component of the No1 Mk3 but they are too large to post on the forum.

A 'small fraction' of one of the series of drawings :

https://i.postimg.cc/s2v2ZCWS/No1-Mk...mensions-2.png

https://i.postimg.cc/rFrCx7SB/Screenshot-2292.png