Neither one. It's a 240 grain one designed for the 8mm Kropatchek. Great big long thing that shoots wonderfully! As for alloy, it's pretty much whatever I pick up. Mostly commercial hard cast pistol bullets from our IPSC ranges and a few wheelweights thrown in. Most of my rifle bullets get water quenched out of the mould, and I try to get the sizing and gaschecking done before 24 hours have passed and they harden fully.