How much taper from base to shoulder is ideal for a dangerous game cartridge? How "improved" can you make a case and it still feed and extract flawlessly?

Thanks

I find this to be a refreshing question, and would answer that a prudent individual would stay with something which closely relates to a .375 H&H, you can do the math. Dangerous game doesn't need to be wildcated, it will only increase the potential danger. That's My HO!