I thought I'd have to go through this stretch of media induced panic down to "only" 6K SPP's. Rummaging around my reloading shelves I discovered 4K Winchester SPP's and 4K SRP's I'd forgot I had. And it got me thinking. The last "shortage", the subject of substituting SRP's for SPP's came up. I don't remember if it was here or another forum, but search turns up nothing. I'm bored and thought this would make good conversation.