Hi to all! I just got built a 338 lapua rifle and am now in the process of reloading a adequate load to take out large game up to 1000yards. i have already bought a box of 250g smk projectiles and a tin of n170 vihtavuori powder, is this reccomended? or if not what powder is reccomended and how much? My rifle consists of a 26' maddco barrel and nesika bay action, if this information is required. looking forward to your replies. thank you.