My 'fighting rifle needs' have been filled quite handily by a 94 Winchester and a coat pocket full of WW 150 Power-Points or Silvertips. Of course we were just after bank robbers, killers etc. so it probably isn't relevant to the current thinking.
“Nine-tenths of tactics are certain, and taught in books: but the irrational tenth is like the kingfisher flashing across the pool, and that is the test of generals. It can only be ensured by instinct, sharpened by thought practicing the stroke so often that at the crisis it is as natural as a reflex.” ~ T. E. Lawrence