I looked for the old loading manual that listed 7 grains of Red Dot with 1/2 ounce of shot but, couldn't find it

I did find a copy of Vol. 1 Reloading information from the American Rifleman, copyright 1953, that lists, on page 106 recommended charges, it lists Red Dot with every gauge but the 16 and the 10. It recommends 7 grains of Red Dot with 5/8 ounce of shot in the .410.
I wouldn't use this recipe and I would not recommend anyone else to use it.

Pete