 However, the heavier weight and bulk of the cannons and ammunition, while providing greater effective range, flatter trajectory, and higher velocity, limited the F-86 to only 400 total rounds, which reduced its total firing time by nearly 75%, from 16 to 4.6 seconds.Garrison worked closely with the project after one of the test aircraft was lost in combat on January 25 because its engine experienced compressor stall from ingesting the cannons' propellent gases.He regularly flew GunVal Sabres on missions before the testing ended on May 1, and despite firing limitations imposed by the stall risk, scored a MiG victory in a cannon-equipped F-86F, near Sui-ho Reservoir on March 26.