I believe the 147gr ELD's would open on game to 700 yards better then the 150gr SMK's, i'll have to wait and see which on the rifle likes best, speaking of the lowly standard 6.5 Swede, the 150gr SMK leaving at 2892 fps is still packing 1118 fps at 1800 yards here at 555 elevation Oklahoma, for an initial 700 yard max back porch picnic table deer/pig/coyote rifle, i'll take that all day long, was pleasantly surprised when I ran JBM to 2K late last night.
Hopefully you get the accuracy at that velocity, stars don't always align.
For reference, my first PRC I shot the 150 SMK to 1850 or so, plus it added a couple hundred more FPS over the Swede. I was super to over 2K.
I think you made a great choice in all aspects of that build.....
