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Date Name Thumbnail Size Description Versions
13:00, 30 May 2017 BallisticAccuracyClassification.xlsx (file) 42 KB Converted to generalized sigma estimation formula for Independent Groups. 3
13:57, 21 March 2017 1000Shots.png (file) 61 KB   2
18:47, 15 March 2017 HBNfired.jpg (file) 1.32 MB Micrograph of a fired copper-jacketed bullet that was impact-plated with hBN (which appears in black). Shown is the beginning of one groove at the bullet's ogive. 1
18:46, 15 March 2017 UncoatedFired.jpg (file) 1.27 MB Micrograph of a fired copper-jacketed bullet. Shown is the beginning of one groove at the bullet's ogive. 1
11:38, 18 November 2015 300BLK 220gr Factory Subsonic 100yd.xlsx (file) 34 KB Corrected rank adjustment plot. 2
18:04, 30 November 2014 Sigma1ShotStatistics.ods (file) 20 KB   2
18:04, 30 November 2014 SymmetricBivariate.c (file) 11 KB   4
16:20, 30 November 2014 SymBiSampleRanges.c (file) 6 KB   2
16:19, 30 November 2014 Sigma1RangeStatistics.xls (file) 95 KB   3
16:19, 30 November 2014 RangeStatisticEstimation.xls (file) 59 KB   3
15:25, 30 November 2014 Extreme Spread Quantiles.xlsx (file) 163 KB   3
15:24, 30 November 2014 ES Quantiles.c (file) 4 KB   2
18:54, 2 June 2014 DanielsonExample.xlsx (file) 14 KB Small error fix. 2
11:38, 25 May 2014 Extreme Spread Relative Efficiency.png (file) 33 KB Relative Efficiency of Extreme Spread estimation by group size. 1
15:05, 3 May 2014 3ShotSighterError.png (file) 94 KB Illustration of misses on a 99% target (i.e., a target big enough that 99% of shots fired from a perfectly-sighted gun should hit it), produced by the sighting error expected from using a 3-shot sighter group. 1
21:03, 18 March 2014 RayleighEstimatorQuantile.c (file) 5 KB Simulate shots from a symmetric bivariate to calculate Rayleigh estimate of sigma and output quantile function (in steps of 0.5%) of estimated sigma for each sample size 2-50. 1
21:02, 18 March 2014 RayleighEstimatorQuantiles.xls (file) 204 KB Quantile functions and moments for the Rayleigh estimator on sample sizes from 2-50. Generated by Media:RayleighEstimatorQuantile.c 1
20:25, 3 March 2014 Sitton 1990.pdf (file) 2.06 MB ''Groups, Statistics, and Practical Facts'', G. Sitton, 1990. 1
16:43, 23 February 2014 Statistical Measures for Riflemen and Missile Engineers - Grubbs 1964.pdf (file) 2.83 MB   1
20:56, 21 February 2014 Approximate Distributions for Extreme Spread - Taylor 1975.pdf (file) 1.01 MB   1
17:44, 3 February 2014 300BLK 225gr IMR4227 subsonic 100yd.xlsx (file) 27 KB 300BLK Subsonic 60-shot 100-yard Example 1
17:33, 3 February 2014 300BLK Subsonic Handloads 100yds.png (file) 57 KB 300BLK Subsonic 60-shot 100-yard Example 1
16:00, 3 February 2014 TargetSubsonicColor.pdf (file) 237 KB Category: Printable Targets Color single high target to allow for significant vertical drop. 1
16:00, 3 February 2014 TargetDoubleColor.pdf (file) 242 KB Category: Printable Targets Color printable double target. 1
15:59, 3 February 2014 TargetDouble.pdf (file) 240 KB Category: Printable Targets Printable double target. 2
15:58, 3 February 2014 TargetSubsonic.pdf (file) 235 KB Category: Printable Targets Single high target to allow for significant vertical drop. 2
09:59, 7 January 2014 2D ES Example.png (file) 14 KB Example of two targets with the same Extreme Spread but different Mean Radius. 1
15:26, 2 January 2014 300BLK Subsonic Target w MV Adjustment.png (file) 22 KB Overlay of two target series: 1 - Raw shots of 20 Subsonic Remington Express .300BLK rounds at 100 yards. 2 - Same shots adjusted by rank for measured muzzle velocity. See data in File:300BLK 220gr Factory Subsonic 100yd.xlsx. 1
15:08, 2 January 2014 CCI 40gr HV 100yd.xlsx (file) 34 KB Precision analysis of sample targets Media:40grCCI HV 100Yards String1.jpg and Media:40grCCI HV 100Yards String2.jpg 3
14:06, 2 January 2014 SCAR17 150gr 100yd.png (file) 470 KB Precision measures diagrammed on a 10-round group that was fired at 100 yards through a SCAR 17S. Data are in Media:SCAR17_150gr_100yd.xls. 4
11:05, 13 December 2013 22LR CCI 40gr HV 40shot.png (file) 25 KB Results of analysis in File:CCI 40gr HV 100yd.xlsx of 40 shots (across two strings) of 22LR CCI 40gr HV, adjusted for sample muzzle velocity dispersion. 1
11:03, 13 December 2013 40grCCI HV 100Yards String2.jpg (file) 405 KB Sample target: 22LR CCI 40gr HV 20 shots at 100 yards 1
11:02, 13 December 2013 40grCCI HV 100Yards String1.jpg (file) 575 KB Sample target: 22LR CCI 40gr HV 20 shots at 100 yards 1
18:11, 1 December 2013 Confidence Interval Convergence.xlsx (file) 140 KB Source data for File:ConfidenceIntervals.png 1
22:41, 30 November 2013 ConfidenceIntervals.png (file) 28 KB Confidence Intervals and Range as a function of sample size, holding sample radius constant. 1
19:20, 30 November 2013 SCAR17 150gr 100yd.xls (file) 29 KB Data and calculations for File:SCAR17 150gr 100yd.png. 1
12:07, 28 November 2013 SymmetricBivariateSigma1.xls (file) 83 KB Formatted output of Media:SymmetricBivariate.c with SIGMA set to 1.0 1
13:52, 27 November 2013 RadiusBounds.png (file) 21 KB   2
12:42, 27 November 2013 3ShotSample.png (file) 22 KB Sample 3-shot group with 1/2" extreme spread. Sample center is in red and is .29" from each shot. 1
20:11, 26 November 2013 RayleighProcess.png (file) 22 KB Fixed CEP coefficient 2
14:47, 25 November 2013 Some Problems Connected With Rayleigh Distributions - Siddiqui 1961.pdf (file) 7.14 MB Some Problems Connected With Rayleigh Distributions, M. M. Siddiqui, 1961. 1
13:36, 25 November 2013 Statistical Inference for Rayleigh Distributions - Siddiqui, 1964.pdf (file) 6.14 MB Statistical Inference for Rayleigh Distributions, M. M. Siddiqui, 1964 1
12:58, 25 November 2013 ShotStatWiki.png (file) 15 KB Standard load development target. 1
20:22, 23 November 2013 Is Group Size the Best Measure of Accuracy by J.E. Leslie III.pdf (file) 154 KB ''Is "Group Size" the Best Measure of Accuracy'', John E. Leslie III, 1993 1
17:47, 22 November 2013 RangeStatistics.png (file) 34 KB Graph of data from Media:Sigma1RangeStatistics.xls -- median value with 50% bands for Extreme Spread, Diagonal, and Figure of Merit with sigma = 1, for shot groups of size 2 to 50. 1
16:04, 20 November 2013 SizeStatistics.png (file) 34 KB Graph of data from File:Sigma1ShotStatistics.ods -- expected and standard deviation of values for Extreme Spread, Diagonal, and Figure of Merit with sigma = 1, for shot groups of size 2 to 50. 1
14:18, 18 November 2013 PrecisionVsAccuracy2.png (file) 7 KB   1
14:14, 18 November 2013 PrecisionVsAccuracy.png (file) 12 KB   1