I love the 404 Jeffery, I have only used it on Asiatic Buffalo and pigs but it has always done the job.
Loaded with the 400 grain Woodleigh bullets I am yet to experience a real failure of any sort. Penetration is excellent and felt recoil in my 8 pound rifle is very mild with a good pad.
It is an under rated classic which can be loaded above its 'standard' velcoity easily