OK, here is my take on all this semi-auto pressure curve stuff. I load for 4 semi-automatic rifles, 1 Ruger and 3 Browning BARs. Some time ago I was getting the same conflictingadvice as many of you about burn rates and pressure curves.

I called Browning to get their opionion on this matter. The first thing they asked was, "whatis the serial number ofyour rifle". I was told that because I will be handloading for one of their rifles(any model) they needed the serial number to Cancel my warranty. No help there.
I then called several powder and bullet manufactures to get their opioins. They all pretty much said the same thing, The concerns about burn rates and semi-autos is geared towards the military actions like the M1. Modern rifles like the BAR are designed to handle the slower powders. That doesn't mean that they will handle the slowest powder for cartridge like R-22 in an 06 without ware-n-tare on the rifle. It also doesn't mean that extremely fast powder for cartridge like H4895 in an 06is the only powder one can use either.
There is a host of fine powders out there that will work just fine in your Rem without any problems. Just stay away from the very slow and in my opinion the very fast. If I wanted to load for the Rem semi in 30-06 I would look at Hunter, 4350, 4064 and the new IMR 4007.