"Artillery was used but was it indiscriminate? Any evidence"
The dozens of statements of eye witness evidence - the massive damage that was done, the weapons used - even the Gunboat Helga firing shells from the Liffey - these can only be used 'indiscriminately' in the hope they might hit their target."

Intelligence and reports from the Nationalists led Government Forces and Police present to believe that civilians had been evacuated. There was no clear way of identifying civilians from "Volunteers".

No heavy artillery was deployed no heavy artillery was used. Heaviest gun was the QF 12 pounder on the Helga which was 3" - had they wished to do so the British could have used a Dreadnought or Battle Cruiser with 15" guns to reduce Dublin to rubble, they didn't, the only artillery used were light field pieces and the devastation caused was to clear fields of fire.

This having been my "specialisation" while in the Navy I can tell you with 100% certainty that no naval gunfire is indiscriminate and no shot is fired in the vague hope that it MIGHT hit the target. Indirect naval gunfire is corrected by observers onto target and that is done very rapidly, in Dublin the rebels held an area under full observation by Government forces, each rebel strongpoint could be identified on any city map and from that information the gunnery officer on the Helga would have an initial range and bearing to target - it really is quite a simple exercise in applied mathematics Jom.