VHT 110, if it is the powder I am recalling, is very fast - like Bullseye. It would be good for making an accurate reduced velocity load in a 44 Mag.
Since you are talking about 24,000 psi, you are thinking some reasonable velocity. I would not use any powder faster than Unique. 2400 comes to mind as the perfect powder for trying reduced loads. It (and Unique) work well over a wider spread of pressures.
As for crimping, the cast bullet is already a bit oversize, so should generate a lot of neck tension in the case. Try shooting and ejecting the second (live) round through an entire magazine of rounds, and examine the live rounds for any sign of set-back. If no set back, the neck tension is enough.
I would seat the bullets to the depth that cycles ok and use a very mild crimp, just to take off any flare there was on the case mouth.
Since you are talking about 24,000 psi, you are thinking some reasonable velocity. I would not use any powder faster than Unique. 2400 comes to mind as the perfect powder for trying reduced loads. It (and Unique) work well over a wider spread of pressures.
As for crimping, the cast bullet is already a bit oversize, so should generate a lot of neck tension in the case. Try shooting and ejecting the second (live) round through an entire magazine of rounds, and examine the live rounds for any sign of set-back. If no set back, the neck tension is enough.
I would seat the bullets to the depth that cycles ok and use a very mild crimp, just to take off any flare there was on the case mouth.
