Factory 300 Blackout in a SSK 300 Whisper

[rsilvers]

Then to make brass from 223 cases would require fire-forming, vastly limiting the desirability of the cartridge among early adopters.

[Spook]

Originally Posted by rsilvers

More shoulder - why not optimize for the most of something?

so it goes both ways... more shoulder is better but then again it isnt? remember you're fireforming it already to get to the .002 . why doesnt that "vastly limit the desirability of the cartridge"?

[rsilvers]

Because the brass starts out in spec. With your way, it would have to be shot once to be in spec - like 7.62x40 WT. I don't want people to have to fire their brass once to make it in spec.

[Spook]

Originally Posted by rsilvers

Because the brass starts out in spec. With your way, it would have to be shot once to be in spec - like 7.62x40 WT. I don't want people to have to fire their brass once to make it in spec.

My way? WTF?
the brass starts out in spec for a whisper(r) chamber and fireforms +.002 > to become a blk or didnt you read what Alleycat posted?
It also fireforms into the .001 > neck diameter of the blk chamber.
So in fact it is being fireformed even though you say you dont want folks to have to do that.



So far, more shoulder is better but then again its not.
You dont want folks to have to fireform their brass even though thats what actually happens as per Alleycats research.

The mystery deepens ...What will you say that you'll contradict next?

[rsilvers]

I responded to a post where you mentioned the body taper on the fired cases - so I seem to be responsible for causing the confusion. The chamber is the same taper as 223 and I was talking about unfired brass, not the chamber.

Here is the brass and chamber drawing:

http://www.saami.org/PubResources/CC...20Blackout.pdf