My friend has a Rem 700 in 338 Lapua with the muzzle brake the muzzle blast is worse than the recoil,not bad at all plus wow 338 lapua seems to be one of those "inherantly" accurate calibers. I would guess punching holes in paper under 100 yards a lesser caliber would save money. but at 1200+ yards the longer barrel life as compared to the 300 magnums might make the 338 lapua a break even caliber. The 300 magnums are an owie caliber and the 338 Lapua a manly caliber? I almost forgot to add I loaded a bunch of 200 Gn Sierra Matchkings in 300 Weatherby mag a couple of years ago and at max recommended charge with H1000 powder, the primers looked great so I didn't measure the cases. My shoulder had a black and blue spot from the recoil though. Seems the H1000 powder is a good choice.