I was hoping the BHN would be higher... Isotope core Pb with ~1% Babbitt (air cooled).
I will try this load (as well as the 'fat 30') with WDWW + 2% Babbitt and see how it does in my Russians (w/o gas tube mod.)
NOTE: the Babbitt has Cu++ so it may be interesting to see how it fares.
I thank you for your time and effort... and i think Junior would be pleased (except for my 10 BHN boolits cast at 26 degrees last February - hence NO water dropping.)
PS: My isotope core AC alloy has about the same BHN as 20:1 Pb:Sn (ie: 'pistol mix'), according to a chart I looked ("Art of Bullet Casting" book.)
I'm guessing they would mushroom like a bandit...