r4m
R4M - Wikipedia
(german version)
They say that in total around 500 allied aircrafts should have been shot down with r4m rockets.
18. march 1945: 6 Me 262 (Jg7) attacked 1221 bombers and 632 fighters (on there way to Berlin) with there R4M rockets and after it with there cannons, 25 bombers were shot down, 2 me262 were lost, one pilot dies.
(Allied sources: 37 Me262 attacked, 12 bombers and one fighter were lost, 3 Me262 were shot down).
In April 1945 24 FW190 shot down 40 bombers without own losses.