Considering a Sako TRG-S in 338 Lapua. Anybody have actual experience shooting one of these cannons? Biggest gun so far is a 7remmag. Want to go right past 30 cal., figured 338 would retain vel and energy at longer ranges. Need help on where to start.Just bought a mil-dot 4.5-14LR Leupold for my 7, But want to use 338 next year in Idaho for elk. Also will this scope work ok or should i opt for6.5-20(really sold on Leupolds) Any help would be appreciated.