New load and bullet weight

I have a 338 edge that I was looking for 270 grain bullets forever.  I finally gave up and bought some 285 grain bullets.  I worked up a load for the 285s, and I am fairly happy with it.  now I finally found the 270 bullets I really wanted.  

Question, can I safely start with the same charge weight I was using with the 285s?  I have never gone down with bullet weight, I typically go up.  I worked up to 102.5 grains of RL33 for the 285s, @2950fps.  

would the 102.5 be a safe starting point for the 270s?  There is not much published info with load data on the 338 edges

thanks