There is lots of talk about steel cased ammo like Wolf causing damage to your rifle with that super hard steel case when compared to brass. I personally think there maybe something else at hand. I read a great article in USPSA's May/June 2011 publication of "Front Sight" magazine. The article titled "Steel Core Ammo: Fact and Fiction" was written by Eric Jay Miller and is the basis for my video below. Eric explores the concerns of Bimetal bullets and the possible damage of your rifling's.
Below are a few pictures of the 3 types of bi-metal ammunition I used in this video. The close up pictures clearly show the thin copper layer as compared to the Hornady bullet that I pulled from my ammo purchased from Parabellum Research www.pbrammo.com