Quoted:
I've got plenty of 308. Steel core is not stuff you come across very often unless you had the foresight purchase it when it came in country. And at a good price.
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Are you certain it is steel core aside from the magnet test?
I only ask because to the best of my knowledge from seeing/shooting various samples of this same stuff over the last 20 odd years...the Norinco/CS is NOT steel core. It is simply a bi-metal jacket with a lead core like many common, commercially available, foreign ammos today such as Wolf, Brown Bear, etc. Typically, the black/grey boxes are marked as such (steel cased/lead core/etc.)...no mention of the bi-metal jackets that I recall on the packaging...don't have any laying around to look to confirm that recollection.
Yes...the bullet will attract a magnet similar to what a "steel core" bullet will, but that test is generally useless to actually determine if the ammo is steel core or not. Unless it is actually packaged as "Steel Core" and you want to confirm, try taking a kinetic/impact puller and pulling one apart and examining the bullet itself beyond the magnet test which won't generally give you any info in this situation.