I bought some indian .308 surplus ammo a few years ago before I found out it was junk. When I found out how crappy the ammo was I stopped shooting it and I 've had it laying around ever since. I am in the process of pulling the ammo down so I can make some use out of it, but I'm not sure what the best way of getting out the tar used to seal the bullets. I thought of using paint thinner, denatured alcohol, or acetone. Will any of these work or is there a better way?