Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
On Feb. 27, 1953, a five-year-old gelding was admitted to the Stange Memorial Clinic with a gunshot wound in the left foreleg. Questioning of the owner revealed that the animal had been shot accidentally with a 22-caliber rifle while the owner was attempting to destroy a stray dog. The patient had been lying in a stall when he was shot. It was also reported that the animal had been shot on February 26, and that on the same day a local veterinarian had attempted to remove the bullet but had failed. The local veterinarian then gave the patient penicillin and sent it to the clinic.
"A 22-Caliber Foreign Body,"
Iowa State University Veterinarian: Vol. 15
, Article 14.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol15/iss3/14