I went tru this in a few threads i made on here, ended up using slightly fast powder for ideal speed, but shot a sambar hind at 300m pass thru double lung. didnt trust em though an ended up loading in the 7-08 , an load 162 eldx for out there distances.
i couldnt get the 3k in 26 tube with 4831SC.. but think i can with 2217 iirc. i did with re25
RE25 i used, i heard 26 is best.
im goin to use Aussie powder next, u guys might call it retumbo iirc