Dave Young in Sand Coulee, MT built these for me. The red star indicates a ~1.25 MOA rock at 1415 yards.
338 Lapua Mag
Defiance Action with 0.750" bolt lengthened barrel tennon
Defiance 40 MOA base
Lilja HV contour 10 twist barrel, 28"
I've only got 85 rounds through it but it hit near the center of the rock with every round with about an 8mph crosswind. 300 gr SMK's at about 2775 fps with 92 gr of H-1000.
FN PBR action that has been trued up
FN detachable mag
FN (Near MFG) 20 MOA base
Rock Creek M24 contour, 8 twist, 25" finish
Shrewd muzzle brake
This thing is amazing. It shoots the 105 A-max at 3375 fps with 54 gr of RL25. It seemed to shoot a little better than the Lapua. Probably because there is way less recoil.
Dave is a heck of a smith and very patient. Most guys probably would have told me to take a hike after changing my mind as many times as I did on that Lapua.