17 FB brass
Keeping in mind this is mixed head stamp once fired brass that has been most likly put through a AR type rifle, this brass does ok with a fair deal of prep work. I ended up loosing well over 10 percent of 300 pieces purchased, split necks and sholders.
Size, neck turn and be sure to properly anneal this brass and you will likly be satisfied with the fruits of your labor. Dinged up rims can prove a little frustrating. My experience is this is a viable option though I have a strong preference for forming Lapua 221 fireball Brass to 17 Fireball with 1 more sizing step through my bullet seater die, as my loss rate is near zero and the new brass eliminates need to deal w dinged up rims. In either case properly annealing B4 1st firing may be highly recommended.
Reviewed by: 17 Guy from NE South Dakota on 5/15/2015