Brenneke SL-4102CE Rifled Slug.410 Bore 2.50" 1/4oz 5 Rounds

Thought these slugs were made from unobtainium. Had searched for them for a year. Fortunate to find them at Sportsman Fulfillment. Had bought some there last year and found they were in stock again this month. Placed two orders this month with both quickly processed, shipped and delivered. They seem pricey but I find this seller to actually have the low price among larger online outlets; much lower. These cycle great in my Henry 410 and it allows me to let my daughter shoot them at an indoor range that prohibits multiple projectiles in a shotgun round. Have tried another brand slug but the brass was not thick enough so that when fired it expanded and would not extract. I have seen several uTube reviews showing these Brenneke 410 slugs to penetrate well when the foster style slugs break apart upon impact. I am very satisfied with the performance of the product and my best advice is to buy them when you see them or go without because they go fast.