I've been 'playing' with your .exe.
Quite fun and revealing.
Another question regarding Rt/R.
I'm working on a Swiss Navy project that is proving fruitful and your .exe has been quite a useful tool.
I took a Nosler bullet and measured the ogive length, BT length and meplat diameter.
I then used the 'Wild Itralian' method to determine RT/r which is, punch in values until the published bc was achieved.
Is this process reasonable and,
If the ogive is lengthened what does that do to the RT/r or does it make any difference.
BTW regarding being rewarded for your freebie .exe. Sneak a peek at Luke 6:38.