Update:
I went out again today and was getting similar results...then I went to double check everything and my chrony was NOT completely flat. It was off about a 1/16 of inch, this little change dropped velocities about 100 fps.
So here are the numbers I shot today and I feel they are fairly accurate.
.300 Saum
168 TTSX
Fed 215
62 gr RL17 = 3045 fps
63 gr RL17 = 3110 fps
64 gr RL17 = 3160 fps
62 gr IMR4350 = 2900 fps (max load in my rifle)
180 Partition
Fed 215
62 gr RL17 = 3040 fps
63 gr RL17 = 3100 fps
7mm Saum
160 Partition
Fed 215
56.5 gr RL17 = 2980 fps
These were the only loads I had left after I discovered the error. I do not feel any of these loads were at max. I feel very confident that I can get even more velocity out of the RL17.
I also did some milk jug tests with the TTSX, Partition, Accubond and Balistic Tip. I will post that later.
And yes RL17 is supposed in me temp insensitive.