She carried these duties out throughout August 1942 and into September, and on 13 September was part of the local escort for Convoy QP 14, with HMS "Halcyon", "Hazard" and "Salamander". On 18 September they joined two Soviet destroyers in escorting the inward bound Convoy PQ 18, which had come under air attack. The convoy arrived on 20 September and "Britomart" resumed her sweeping duties. She was next deployed on 17 November with HMS "Halcyon", "Hazard", "Salamander" and "Sharpshooter" in escorting Convoy QP 15 through the Barents Sea. They were detached on 20 November and returned to Archangel. "Britomart" was briefly in the UK at the start of 1943, but was nominated to return to Russia as part of the escort for convoy JW-52, and joined the assembled convoy at Loch Ewe. She deployed on 17 January with the corvettes HMS "Lotus" and "Starwort", and three naval trawlers. The convoy came under air attack on 24 January, but these were ineffective. They arrived on 27 January and "Britomart" resumed her usual duties.