Testing for long line AND short line

Slartybartfast wrote:Looking at threads with test targets and people discussing testing techniques it seems that people are testing for one line at a time.

Why not set up paper at 50yd, 25yd, and 50ft and shoot through all three?

Because the paper at one yard line disturbs the bullet for the next yard line.. 

Just a thought exercise on how to test most efficiently if I ever take the step to loading. Or do what I should be doing to evaluate the ammo I do use if it ever seems that my performance might benefit.

Choose a yardline (25 yards is a good distance) and shoot multiple groups of sufficiently large shot numbers.  The standard is 10 shots, but more can be learned with 15 shot groups.  Three of these gives statistically valid results.  Use the “mean radius” method of evaluation, sometimes it’s called “figure of merit”.  For ammo testing a machine rest is mandatory unless you have a purpose built ammo test gun built.  And ammo dispersion is linear with distance shot, GUN dispersion IS NOT!

Ideal setup IMO:
50yd range, ransom rest, three electronic scoring targets, labradar, computer to capture/record gun/ammo/velocities/POA/POI

Just one target.  Paper targets are fine and more accurate.

Guess that's what the setup at Eley and other elite ammo manufacturers is like for when they match ammo to a firearm. Just this has the extra target distances.

But for the home reloader/tester, I don't think it would be too difficult to use a laser boresight to align paper targets on all distances.

At a well equipped range, it would be nice to see a way to quickly test a firearm and ammo combination. Have an objective way to put a box of ammo downrange and evaluate accuracy and required POA adjustments.

Surely even the 7yd and 15yd shooters could benefit from a range set up for this. IMO it would be invaluable as a tool for testing for firearms and ammunition reviews. But it seems the firearms industry (firearms and ammo) and consumers lack a general desire or demand for rigorous standardised (and published) testing.

On the recording/data gathering side of things, maybe someone should attempt to convince the developer of TargetScoringApp to develop a testing oriented version.

Chris Miceli wrote:accuracy x did it in a video on facebook with a 45 shooting through a 25 yard and 50 yard target, also i believe eley uses electronic grids not paper.