I opened a Federal 550 round Value Pack and got a surprise. About half of the rounds are Remington Golden Bullets and the rest appear to be Federal. I have no idea as to how long I have had the box, but the sticker says I paid $9.00 for it.

Must have been from when they merged?

New freshly opened box or possible that you put some of the other brand in the partial empty box...... Just asking because I have been known to have mixed ammo........................................ drill sgt.

I think you ae correct and I made the error. I carry my .22's in a Crown Royal bag in my shooting box. It must have had some Remington ammo in it and I then added Federals from the newly opened box.

Thanks for reporting that.
In this case it was hardly a critical issue, but mistaken claims are often repeated and become Internet lore that refuses to die. When people are open enough to say, “I may have made a mistake,” we all benefit.

Years ago I popped open a 500 round brick of Wolf MT. Inside were ten 50 round boxes of SK Standard Plus. At that time, Wolf 22lr ammo was manufactured by SK, and I guess they cut some corners and just went with the as shipped packaging.