Staff Sgt. Christopher Keller, 436th Security Forces Squadron combat arms instructor, counts boxes of 5.56mm ammunition Dec. 17, 2021, at Dover Air Force Base, Delaware. Keller is one of five instructors at the Dover AFB Combat Arms Training and Maintenance facility. Each person receiving training is allotted an exact number of rounds to use during qualification. (U.S. Air Force photo by Mauricio Campino)
NIKON Z 6
14.0-24.0 mm f/2.8
No camera details available.
This photograph is considered public domain and has been cleared for release.
If you would like to republish please give the photographer appropriate credit.
Further, any commercial or non-commercial use of this photograph or any other
DoD image must be made in compliance with guidance found at
which pertains to intellectual property restrictions (e.g., copyright and
trademark, including the use of official emblems, insignia, names and slogans), warnings
regarding use of images of identifiable personnel, appearance of endorsement, and related matters.