Most of the sealing ships contracted to Job Bros used Krags, sometimes rebuilts. Quite a few were cut back to resemble the 1912 Carbine: easier to carry when coppying from pan to pan.
They got worked to death at the Front and quite a few turned up on Fogo Island and the general Notre Dame Bay area. Comp[any did not mind if they disappeared; after a month on the Ice, they were pretty much fagged-out.
Went shooting one day on the Island, I took a 303, other fellow brought an AG42B and 2 5-gallon buckets of Norma ammo. This was Norma Oslo make, Berdan primed, 156-grain RN slugs with cupronickel jackets. It was packed in 50-round brown boxes labelled "Spesielt Fabrikert for Selfangst"; Specially made for Seal Hunt. Headstamp was "norma at 12, 6.5m/m at 6, o at 3 and 9. He told me that he had 3 more buckets at home. It had all been found on an ice-floe and "rescued". He got his rifle from International after mailing them a live round and asking for something to fit it!