Back in the 50's there was a particular experimental ammo round that never caught on, the .222-17. Later, a 17 did come out which we all see today; what I am looking for is not quite the same. The brass had to be hand fashioned and there was not a lot of it made, but its out there. I have one round. Does anyone have any of this in any amount that they would like to get rid of all or some of??