I never suggested a 1700FPS load, in my PM or here on the board.
Just because you already have a load for a 335 at 1700 doesn't mean you can't load it with a different powder and get it down to 1200FPS. But I would certainly go along with a 250gr bullet if I was trying to load something with lighter recoil.
Rimrock and Leadhead have some good offerings in cast and of course there is jacketed bullets and all copper too.
A good accurate 250 gr will do a lot.