The US National Archives and Records Administration (NARA) maintains a web site called AAD Access to Archival Databases at which one can browse and download selected archival data files.
In particular, the Hostile File File (HOSTA) 10/25/1966 - 4/5/1970 (also called Naval Bombardment File) contains a record for every incident of hostile fire against naval ships
during that period of the Vietnam War. For USS Newport News CA-148, it identifies precisely the same list of counter battery dates that OPNAV NOTE 1650 shows as eligibility dates for the Combat Action Ribbon,
as discussed elsewhere on this web site.
Here is the selection from that file of all hostile fire events mentioning Newport News:
Combat Naval Gunfire Support File, 3/1966 - 1/1973 (CONGA)
Combat Area Casualties Database, ca. 1967 - ca. 12/1998
Unit Information for Vietnam Casualties Database, ca. 1983 - 6/19/2002
The second file, CONGA, is mentioned elsewhere on this web site. It contains data for contains data for every naval gunfire mission during the period,
essentially for the entire war. Unlike HOSTA, which is small enough to select and download the entire file, CONGA is huge. One must select subsets of interest
and download it in pieces. Shipmate Bob Chase and I have both done such downloads and Bob has undertaken the enormous task of plotting all Newport News targets on charts of the area.
The third and fourth files contain information about our lost shipmates. I have not yet downloaded that data nor carefully reviewed it all, but my initial
look leaves some doubt about how complete it is.