Any starting load for a 230gr jacketed ball bullet will work with that cast hbwc bullet.
Huge difference between a cast hb bullet and a swaged hb bullet. A cast hb bullet can be driven a lot harder/higher pressure loads. (velocity has nothing to do with the skirts blowing off!!!!)
A 3.3gr of bullseye load/148gr hbwc 38spl. 800fps+. The base looks fantastic.
A 44spl hb hp swc 210gr shot out of a snubnosed 44spl, 1000fps 18,000psi+ load.
A side view of that same mushroomed bullet. Note that the skirt/base didn't blow off. It did compress and expand.
Some of the hb bullets I've cast/shot in the 45acp's over the years.
Playing around last year doing head to head testing with these 3 bullets and a max/4,3gr load of clays.
All 3 bullets held 1" or less @50ft for the 5-shot groups.
The only thing I ran into when reloading those 230gr hbwc's I cast for the 45acp was the bullets bases were getting swaged down due to having to seat them deep enough to chamber in my 1911's.
Deep seating issues are pretty common with hb bullets in short cases. Ran into the same thing reloading hb bullets in the 9mm's. The green bullet is a standard 125gr hp, the red bullet is a hb fn.