As noted by others the 404 doesn't get a lot of press but is often mentioned in articles and books e.g. J A Hunters "Hunter" where someone grabbed a 404 in the hunting car and used it to successfully put down a wounded rhino that was busy chasing one of the native trackers. The 404 was said to be of the most prolific cartridges used on African and Indian game including use by some of the game control units in Africa, especially on elephant, but didn't seem to attract the attention of the writers of the day.
Perhaps the 404J was just too low key efficient at what it did in the field that there was nothing to write up about or embellish as most writers of note tended to do.