.303 Britt MK VII Ball ballistics


#1

Are/is there published exterior ballistics for the Britt .303 MK VII Ball that shows standard deviation and ballistic coefficient of this round? Was there a change for this data over the years after the use of the later type of Cordite and later on in 1938 of the nitrocellulose powder ( Z loading ) still using the MK VII Ball projectile?
Thank you for any info.


#2

There is just about everything you would need to know about the ballistics of the .303 inch Mark VII in “Text Book of Small Arms 1929” which is available as a reprint.

amazon.co.uk/Textbook-Small- … 1843428083

Also, I think you are under a misapprehension about the introduction of the nitro-cellulose load. This occurred in 1916/17 when Dupont No.16 was used and there was no change in the ballistics. Similarly, there was no change in the type of cordite used which was MDT 5-2.

The nitro-cellulose round introduced in 1938 was the boat tailed Ball Mark VIIIz, a quite different animal for long range volley fire from Vickers guns.

Regards
TonyE