Thicker brass than winchester or remington. Adjust your masses appropriately. That said I'd level the quality nearly as good Otherwise a lot better than the previous described. Have gotten four reloads off factory loaded off the shelf so can’t complain about that and A lot of them are reloadable again. https://17hornetbrass57891.blogs100.com/26998501/top-17-hornet-brass-in-stock-secrets