The era of Reprisal is usually considered the years between 1956 and 1963. But cases went on beyond that, verdicts were made at least to '66. But '63 was the year of the first general amnesty, when many were pardoned. Many rot in prison up to 1974.
Couple of interesting things to note.
In '57 December, they surveyed the work, and the Minister of Interior, Biszku Béla, pointed out, that "the numbers of physical extermination is relatively low". So they reopened the case of hundreds of people who served in various armed bodies of the state (from police, through prison guards, to army), stating their sentences were unproportionally light compared to their crime. 26 were got capital punishment.
Lot of people who participated in the fights against the Soviet forces were treated as common criminals and sentenced for attempted murder or murder. They were imprisoned as such, and 144 were executed as such. In relation to this those who were politically persecuted in 1989 got rehabilitated, the "common criminals" had to wait til 2000.
Biszku Béla was accused of various crimes after 2010, even war crimes, but all cases were dropped.