All of my SKS stuff is wheel weights. I use that for 308 and 30-06 as well. No problems with those. They are both bolt guns. I have even shot pure lead out of bolt guns while using a gas check. I have pushed them way past 1500 fps. I worry about it more in a semi auto because you shoot a lot faster and therefor heat the barrel up more.
Romans 1:16 I am not ashamed of the gospel, because it is the power of God for the salvation of everyone who believes: first for the Jew, then for the Gentile.