I just got done shooting the 200g TSX out of my .358. I loaded 51g of TAC per Mule Deer's suggestion since it is a lever action. This with a 22" barrel. For some reason I was only getting 2400fps from this load. The max load MD showed was 52g at over 2700fps. I doubt 1 grain will make a 350fps difference so there must be something else going on.
