With the 1-4 rule, if the 26 has 10% less case capacity than the Thor, thus 2.5% less velocity, or 84 fps from 3,380 fps, maybe the 26 can push a 140 closer to 3,300 fps.
Hope I figured that correctly.
But, I have no idea the pressure it took to get the Thor to 3,380 with 140's.
140's in the mid to upper 3,200's would be pretty good, hopefully at reasonable pressure.
DF
