A .375 Weatherby is probably not considered a long range rifle/cartridge combo, but I thought you guys might like to see what this ZKK-602 rechambered and built up by Jim Brockman can do. That hole is exactly 1/2" side-to-side and top-to-bottom. Taking into consideration these bullets are 3/8" diameter, the center-to-center is roughly 3/16". I think that is pretty dang good. The rifle with the Meopta Artemis 2x8x42mm: The rifle will do this with the Barnes 300 gr. TSX but for some reason the brass will not hold proper neck tension. It is almost like the base of the bullet is larger than the rest of the shank, so the farther I seat them, the more loose they are. I am going to work on some GS Custom bullets in 265 and 300 gr. later this month. I am going up to Kotlik, Alaska at the terminus of the Yukon River to look around for moose this coming Thursday morning. I think I may have a fun time.