Originally Posted by brentc
Better check the burn rate chart. Burn Rate
7828ssc is actually closer to RL25 and H1000. In a side by side comparison with 210 Bergers loaded to max pressure in my 300 WSM with H4831sc and 7828ssc, the H4831sc max charge is 65.5 and the max 7828ssc charge is 67.5 and the 7828ssc load produces 50-75 more fps. Both powders are plenty capable, but in the 300 WSM the H4831sc is at its best with bullets in the 180-190 grain range. For the 200-230 grainers in the 300 WSM the slower burning 7828ssc is a solid step up in performance.
I really don't care as I've gotten away from both after I saw how high you have to run the pressure on crappy single base powders to equal double base velocity wise. I can scan in some graphs from my last 7stw if I can find them. I got rid of the rifle and purged the data pretty well so they may be gone. On my 7stw 7828 and rl22 took the same charge weight to make the same speed on a 140.
I really don't get your quibble as I wasn't arguing about whether 7828 is a suitable powder, only that you shouldn't get much slower than that in a little cartridge like the 300 wsm. For cripes sakes, my dad has one in a pistol.