I have compared pulled (using kinetic puller hammer) unfired Black Hills 300 Winchester Magnum Brass labeled BHA to Norma Brass. They measure differently in regards to neck thickness (Norma slightly thicker) and headspace @ .400 Datum using the Hornady Headspace Gauge (Norma longer). The Black Hills Brass is NOT made by Norma. They appear to be Winchester Brass. I will try to make a comparison with Winchester as soon as I acquire some Winchester Brass.
rxs0
Last edited by rxs0; 02/04/14.
