Information is from USAF Armament Laboratory publication AFATL-TR-84-03.
Dale M. Davis.
During 1940 1,200 metric tons of uranium ore had been seized in Belgium.
Decision to produce uranium ammunition was made during the summer of 1943 when wolframite imports from Portugal were cut off.
The author mentions a first hand report from a German serving on the Eastern front during 1944 which contains a description of the new anti-armor ammunition.
The author mentions the pyrophoric effect of uranium. Whatever that means.
Ammunition “Issued to Service” in June 1944.
804g for complete 30mm round.
350g projectile weight.
Tracer burns for approximately 1,200 meters.
960 meters per second velocity.
Penetrates 100mm of any type armor @ 300 meters.
…..70mm for armor angled @ 30 degrees.
Exclusively for attacking medium and heavy tanks.
Practice firing prohibited.
No know reports of this ammunition being used on the western front.
The publication contains a bunch of additional information such as propellent type, primer type, rounds per case, a diagram of the round etc.