what is the best powder for 338 ai/aw lapua?

[charlie v]

W:confused:What is the best powder for a 338 lapua out of accuracy international 338 aw? Do you have any load data? what are some group numbers or pics at 100 or 200 and or 1000? thanks for the help .

[Zak Smith]

http://demigodllc.com/~zak/articles/trg42awsm/icon/03_icon.jpg
article | Military .338 Lapua Magnum Rifles: the Sako TRG-42 and the AI-AWSM http://demigodllc.com/icon/extwh3.png (http://demigodllc.com/articles/military-338-lapua-rifles-trg42-awsm)

For the 250gr Lapua Scenar, I use H4831SC. Retumbo also gives good results.

For the 300 SMK, try Retumbo or RL25. The 300 may or may not fully stabilize depending on the barrel twist (most are 1:11) and your altitude/temperature.