.468 does seems a bit big of a diameter. Anybody load a lot of the 358429 in full Magnum level loads? If it would expand, it would be great for a deer load .
I haven't tested for expansion.
Loaded seated in the crimp groove for my blackhawk, I'm getting good accuracy with 14 grains of 2400 and Federal 100 primers in WW brass. This load is too long for my GP-100, the bullet protrudes past the cylider mouth. For the GP-100 I back it down at least 1/2 grain. I haven't gotten good accuracy with these crimped over the shoulder in either gun. I also haven't gotten good accuracy with them in .38 special cases. So far, my only success has been seated out to the crimp groove for the blackhawk only.