Copper Plated lead bullets

[Slash5]

Just picked up a bunch of 150 gr .308 bullets. They look like jacketed but they tell me that they are lead with a copper plating. They are flat nose so I figured I would play with them in the 30/30.
Do I treat them as cast bullets and keep them down around 1600-1700 fps?
Or can they go a bit higher, more like jacketed?

[Iowegan]

Use your cast bullet reloading charts. Plated bullets have most of the properties of a lead bullet so you can't run them quite as hot. Also, measure the diameter. The plated bullets are usually .002" larger than their jacketed counterparts.

My plated bullet results were mixed. They don't like Marlin Micro-groove rifling. Accuracy was trash. In my Win mod 94, they worked OK as long as I kept the velocity down to plinking speeds.