In 458 bullets Nosler has four listings. Two are for 45/70; 2 are for 458. I'm wondering about the alloy used in the 458 bullets. The solid and the partition both resemble the older style partition as they resemble bronze rather than brass/gilding metal. attached is a photo of a Nosler for 45/70 - appearance is like other Nosler bullets; while the middle one is a new production 458 partition and on right is an old production .308 partition. Since the ammo is loaded in Sweden, I'm wondering if the bullets are made there.