I don`t think you`ll be able to push the 170 grn. Lead Head bullets fast enought to get them to lead in a .30-30. I pushed some of their 260 gn. GC .411 bullets to abt. 2,500 fps. in my .411 Hawk. I just load 5 of them up pretty hot for cast and fired them as fast as I could. No lead at all. I got these bullets to shoot in my .410 for deer but plan on doing some work with them in my .411 also. I should find out how fast you can push them befor they start leading because I should be able to push them to alittle over 3,000 fps., and I`ll bet they lead befor that.
