Well I dug out my clearance big bore ammo I bought from Nosler and was interested in the fact it’s made in Sweden. Did Norma make it for Nosler? Looks very well made but does use Nosler bullets

Norma makes brass for Nosler. In some of its own chamberings Norma uses some Nosler bullets. Seems logical that Norma would load at least some of Noslers ammo.

A few years ago I wanted to form some brass for my .375 H&H AI. Some was Nosler brass (.340 WBY.) and some Norma brass (?don't remember) but I did note that both of the brass was the same length and both a little short.

Hip

The 505, 500 NE, 470 NE and 458 Lott made in Sweden. My other Nosler ammo 300 wm and 280 AI made in Oregon

Norma has always been a company that would custom load ammo for other entities, Weatherby ammo being probably one of the more well known.
They have been the only company to load the ammunition for the 7x61 Sharpe and Hart, I had a couple of boxes of this ammo that was specially labelled; "Loaded for Sharpe and Hart Associates" or words to that effect. They also at one stage used to load Nosler partitions in their 7x61 ammo.

Norma also produced a special run of 404 Jeffery ammo for Parker Hale sometime back in the 60's or 70's, the packets of which featured an elephants head in crosshairs. The ammo packets were labelled 'Made in Sweden' but did not mention Norma and the cartridges were head-stamped Parker Hale.