MD,
Excellent point about crimping.
I have gone through stages where I have tossed dies that did not size cases enough to those that over sized in order to obtain a consistent hold on the bullet to the point that I have never crimped a .460 Weatherby load, even when using up to 550gn and 600gn bullet at full velocity in generating 8000FPE.
By contrast, I have however, crimped "some" .458 Winchester and .45/70 loads, but it was for assumed assurance, rather than need.
John
