1866.
In January the regiment embarked at Liverpool for Dublin, and was consequently distributed as under:—
| Head-quarters | Curragh. |
| Three companies | Armagh. |
| One company | Monaghan. |
| Two companies | Sligo. |
| Two „ | Boyle. |
In May the establishment was reduced to ten companies. Various changes in the stations of the detachments took place during the year, but at the end of the year the whole regiment moved to Richmond Barracks, Dublin.
On 27th December the regiment was armed with breech-loading converted Enfield rifles, Snider pattern.
1867.
The depôt companies moved in March to Colchester, and in April the regiment embarked at Kingstown, and was conveyed by the troopship Himalaya to Gibraltar, where it relieved the 86th Regiment in the Casemate Barracks.
Lieutenant Tollemache died during April of this year.
On 9th May the regiment received the new colours, the presentation being made by the Hon. Lady Airey.
1868.