ORIGINAL: eldeguello
"This is probably the absolute limit for a cast bullet."
2400 FPS with accuracy and no leading is NOT the absolute limit for cast bullets. If you read Veral Smith's (LEAD BULLET TECHNOLOGIES) little book called "Jacketed Performance with Cast Bullets", you will learn what IS possible with cast bullets, AND how to get it!
I just didn't think 3 1/2 groups was very good for a 30-06and if he pushed them faster, I just couldn't see the groups improving. Even so, I suppose there are ways to improve the performance. Theyalso had problems which involved splitting the muzzles of a couple of rifles.
If I had copy of the little book, I think I'd give it to the mountainmold man so he could pursue his passion more successfully.