Im after some advice on bullet selection for a 338 Lapua 26" barrel. 225 SST, 250 Scenar or the 300 SMK. I currently use the SST but really want to wring the best out of the calibre. most shots 300-750m. Any help would be great. The 300's are expensive in nz @ over $1 each. SST's @ 55c each. do i really need the 300's? despite the cost im willing to use them.