I just bought a Blaser rifle in 7mm STW and am planning on shootin 139gr and 140 gr bulletts. They will be Accubond and interbond buletts. I am looking for the right combination of powder and any other info that would get me the highest speed and best accuracy out of my 25.5 inch pipe? I will be shooting Alberta whitetail sized critters and if there is a better bulett please let me know what you think and yes I like them fast.

I would look to IMR7828, RL25 & H1000 for fuel. I would also opt for a bit more bullet weight for those big Canadian WT. The reason to own a magnum for me is to push heavier bullets faster. A 160gr NAB @ 3200fps os plenty flat shooting out to 400+.

I use 7828 for my 140sAB. My load is past the max in Noslers book but reads 64,000 on Loadtech.