Several years ago I purchased bullets from Penn Bullets cast in their "premium" alloy and I am hoping someone here might know the BHN for this alloy. I recall their website stated their premium alloy bullets are rated to 1600 fps. In an email the owner to use load data for jacketed bullets for the premium alloy bullets. The owner has passed away and the website is defunct. The reason for asking is I would like to know how low/slow I can load this alloy without leading. Thank you!