Problematic new entries 

A number of older cannon has been added over the years in the categories stone balls and iron balls and shot whose caliber has not been sourced, namely Malik-i-Maidan, Jaivana, Dalmadal/Dala Mardana and Zamzama. Another entry, the Basilic (cannon), is sourced, but the value seems more of a modern guesstimate, less the result of reliable historical documentation or modern measurements. I am of the view that the former pieces should be removed from the list until reliable, scholarly sources can be put forward, while the latter is debatable for its inevitable vagueness.