My Dad fought with a Winchester M-97
Back in the Duece (WWII) my Dad was on a light cruiser in the pacific (USS Santa Fe, CL-60). Being a strapping young man with boxing experience, he was selected to join a "prize crew" (boarding party). They were supposed to go onto a stricken Japanese ship and take prisoners, using a .45 they were given no practice with, and a Ka-bar. He thought this sounded a bit light, so being a cook (Duty station. Battle station was on a 40mm twin) he smuggled an M-97 aboard in a sack of beans. He said the sack had more buckshot than beans.
He sawed the barrel off just forward of the magazine tube. As they climbed the cargo net onto a Jap vessel, he had a large man climb below him. As they reached the top, he would sit on the other man's shoulders. The other man would raise up and my Dad would sweep the deck with shotgun fire, and the other man would duck so he could re-load. This allowed them to gain a foothold on the enemy ship.
He also said that it was extremely effective in the steel hatchways. If an enemy chose to run & resist rather than halt & surrender, a charge fired along the steel wall would roll and tumble along the wall, ensuring a hit on an enemy who was ducking out from cover to fire or heading for cover to make a stand. He said that usually the poor bugger caught the whole charge that way, but spread out from hip to head. Brutally effective.
There were knives used, too...but he does not talk about that. My brother had his knife, also a custom job (18" of curved steel, sharpened on the outside to a shaving edge). When, in the 1970's, my brother lost the knife, he thought the old man would be furious! He was not known for his genteel ways, but he gently laid a hand on my brother's shoulder and said "That's okay my boy. It's alright. I've had nightmares every time I saw that thing."