I have used the 416Rem on numerous hunts in Africa--think it has slightly higher case capacity than the Taylor however think similar powders would work??

I have used 400gr A-Frames for softs and 400gr Barnes solids with RL-15--easily hitting the 2400fps mark..but agree with one of the previous comments..no need to be 2400fps--anything between 2150 and that is good and will work very well with a well placed shot..

Ripp