For thoose who are reading this form... now is possible to obtain 7x66 brasses by fire forming them from .28 nosler ones. The two calibers are virtually identical, the only substantial difference is the angle of the bottleneck, 30 degrees for the old german and 35 for the nosler. If you look on the net you will see how close are the to brasses. both 66 mm, 93grains of volume, created by the .404 jeffery, with similar ballistic.