Too late to tell you to back out.You are well and truly IN,Pierre
it was Eagle eyes who suggested about stereotype.
I guess you can use it to make alloy to your specs?
I have this excel sheet calculator, which i can PM.all you do is fill in the blanks opposite the required metal/mix and the BHN gets calculated.Works well enough for me.
The CBE stuff is indeed good.I had 2 follow me home,one from a dyslexic moment, where I READ a POINT FOUR THREE TWO inch mould as a .four TWO three. Sold it after I realised I'm not ready for a .44 cal
Latest one was a .309 CBE, no accident, got it off a mate who was cleaning up!
HAve plans for Dave for later this year.I have been on the receiving end of Dave's great services, and can agree that Dave deserves all the good words,no doubt.

I have no real experience with the .45-70,except a few shots I've taken at a target, with a .45-70.But if you ever get those TBF monopex and Deep HP 300 grainers , grab them.I'm told Jason might be closing up.Pity,as his jacketed projjies were excellent.

I'm guessing, if you dont harden the Plain base projjies too much, the base bump/ nose slump should be adequate to ensure obduration and engagement in the rifling,& help accuracy?
All my CB are GC, so we'll let some experienced caster answer that one...
Keep on pouring

7mm projjies 50:50 WW/Lino