I have about 300 280gr GC cast bullets and about 150 285gr cast bullets. I didn't specify a twist, but told him my intentions and sent 2 dummies of each bullet along.
If I ever have to use this to save my life I hope the twist rate will stabilize them to 25 yds.
Once I get a factory crimp die I will load some up and see how they do at 50 & 100yds.

Some is Good---More is Better----Too Much is Just Right