Beyond 400yds is a good metric in the hunting world.
Right about there is where, even a lot of the flat shooting rifles, have dropped or are dropping below MPBR.
Yep
Very few will get to 350 with a 6" target size. More with 8" or greater. A 6.5mm 142g bullet with a B.C. of .625 and 3050fps at the muzzle has a 313 yard MPBR at 7000 feet altitude for a 6" target, 352 yards for an 8" target. A 10" target only gets to 386 yards MPBR, but now you're talking about +5" above line of sight. I prefer 3" max, hence my preference for 6" target sizes for MPBR zeros.
I can see your logic on the 6" target for hunting applications. That 6" target really peels back the MPBR on things !! Not your optimal long range projectile...…..but the 485 B.C. 7mm bullet that gets me to 442 yards (at your house at 7000 feet) on a 10" only makes 360 yards on a 6" target. Still fairly respectable in the point-and-shoot aspect.
