winchester and western 220 swift brass

[JB75]

I was walking around the local gun store and found 6 boxes of new umprimed 220 swift brass. I bought 3 of them, but my question is when did winchester and western change to just winchester. I was just wondering how long these have sat on the shelf.

 

[G_Stines]

Is it stamped WRA or W-W or W-W Super or something to that effect? If its WRA, it hasn't been used since the 50s... If it is a W-W (Super), they have all been used in conjunction along with just simply Winchester, since the 1950s and are all current depending on the brass.

 

[JB75]

It's w-w I was just wondering thanks for the info.