Re: First Time Reloading 270
My Hornady manual shows a starting load of 52.3 gr of H4831 and max of 62 gr with 130 grain bullets so I think you are pretty well on the right road. You may even have a little more on the top end available, but as always, start low and go slow and watch for pressure signs.
As far as distance, 100 will work, I like 2-300 even more once I start to get in the general ballpark of my load as your differences are more evident than at 100. However, there has been a lot of load development done at 100 if that is all you have available to you.
Good Luck and Be safe! Let us know how it goes.