So I went looking for specs on the .458 WM 400 grain TSX and can't find what the SD was on those.
Buffalo Bore load these at ~2250 fps and ~4500 ft lbs with little powder compression. Calculating an SD halfway between the 350 and 450 grainers yields 0.272, which is close enough to .300 especially considering mono-metal, no?
Which leads to questions:
1. So then is the 400 TSX a perfect replacement for the 500 grain solid for dangerous game, given the extra velocity?
2. Does lighter monometal bullet weight also mean less recoil with the same penetration as the old lead solids?
3. Could the 400 TSX be the ideal fit for the .458 WM case, with respect to dropping elephants?
4. To my understanding, Barnes dropped the 400 grain weight due to low demand. Why low demand?
