MontanaRifleman
Well-Known Member
Personally this BC thing seems to be a ****ing contest! Unless someone is shooting doppler radar the numbers will always be suspect! Barometric pressure isn't constant and neither is temperature.
Now there are others that can devise a better plan than I, but IMO, to calculate drops NOTHING should change!
IMO, the shooter should have a reasonable zero, LV used 400 yards.
The shooter should not adjust the scope as that WILL induce error!
Shoot a 100 yard target, and as many intermediate targets as he is inclined to shoot out to the maximum distance available.
Targets should be interchanged long /short, short/long thereby showing any changes in conditions...and followed by a shot at the zero distance. EG: 100 / 1000, 900 / 200, 300 / 800 etc.
IMO, unless someone sets out to deceive their audience, the drops will give a good 3d picture of the trajectory.
This is a test that anyone could or should be able to reproduce. Obviously a charlatan could just adjust the point of aim to make any drop work, but if 2 or 3 other shooters could not reproduce the results then the hoax should be unveiled quickly! Anyone with Excel can use the drops to show where his/her bullet should land based on those numbers!
edge.
Putting aside the "****ing contest", that's all good in theory, but the problem is, it is not at all precise in the field. All your parameters, zero, drop measurements, atmospheric conditions, etc., must be measured precisely to gat an accurate BC. Instrumentation, such as chrony's and or doppler at muzzle and down range for differentional velocities are by far the best way to detrmine BC. Measuring one set of drops from 400 yds to 948 is not as accurate as measuring several sets of drops from 100 to 1000 yds, which is not as accurate as shooting through two chrony's.