Abbreviation Relevant to Gunners

HAC Honourable Artillery Company. HAF High Angle Fire. HAG Heavy Artillery Group (WW1) (Formally known as HAR) HAHQ Heavy Artillery Headquarters (WW1) HALO Hostile Artillery Location Radar. HAR Heavy Artillery Reserve (WW1) (Precursor of the HAG) Hay Up Secure Hay nets in horses stall after feeding. HB Hostile Battery . HCDR High Capacity Data ... ................
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