The big bores will not fly far???
Battle of Adobe Walls Article While the distance is in dispute, it appears that it was at least 1,000 yards with a 50 Sharps ...
.45-70 at 2 miles - link to archived thread copying article from elsewhereSince one of the test's objectives was to gauge bullet penetration, the huge target consisted of three 1-inch thick boards, separated by 1-inch cleats. The target was supported on 6-inch spruce posts and was constructed partly of spruce and partly pine, since this was the wood at hand.
In the tests at 2,500 yards, the target was hit five times in seventy rounds with the .45-70-405 service load, only once with the Martini-Henry in eighty rounds, and four times with the long range Springfield in thirty shots.
When the Springfield long range cartridge was fired, the
500-grain blunt nosed lead bullets propelled by 80 grains of black powder in the 2.4-inch cases
at about 1,375 fps penetrated right through the three inches of wooden target and buried themselves in the sand. One 500-grain slug pierced three inches of target and buried itself in a supporting six-inch post, giving a total penetration of a measured 5.25 inches. The Service 405-grain bullet gave a penetration of just 1.12 inches, and the Martini-Henry 480-grain bullet, 2.50 inches.
338 Spectre in a 10.5" barrel, firing a 300 SMK subsonic, penetrated 7 layers of 2" pine and then pierced a 1-gallon metal paint can ... BigBore of ADCO did the tests.