ATTENTION: Effective Sept 1, 2020, the BBTI Project is in "Archive Status." No further tests will be conducted, but we will maintain this site and data for the use of the firearms community. Thank you. |
Raw Data
Here is all the data straight off the recording sheets, either in PDF format or in Excel format (.xls), for the different test sequences we have done. All of the files include all of the calibers tested at that time in one file (on separate pages).
Data sheets in Excel format for polygonal rifling tests in October 2013
Data sheets in PDF format for polygonal rifling tests in October 2013
(Excel and PDF data files for polygonal rifling tests include both chop tests and real world tests.)Data sheets in Excel format for .22 Mag tests in 2013
Data sheet in PDF format for .22 Mag chop tests in 2013
Data sheet in PDF format for .22 Mag real world gun tests in 2013
(Excel data file for 2013 test includes both chop tests and real world tests.)Comparison Chart for Gap Test Data
This Excel chart allows you to compare any combination of cartridges tested in the Cylinder Gap tests in 2011 on a single graph. Developed and graciously provided by S. W. McPherson.Data sheets in Excel format for cylinder gap tests in 2011
Data sheets in PDF format for cylinder gap tests in 2011
Data sheets in PDF format for "real world" guns tested with gap test ammo in 2011
(Excel data file for cylinder gap tests includes "real world" guns.)Data sheets in Excel format for tests in 2011
Data sheets in PDF format for tests in 2011
2011 ("chop tests") include: .22, .223 rifle, .460 RowlandData sheets in Excel format for tests in 2010
Data sheets in PDF format for tests in 2010
2010 Data sheets in Excel format with Muzzle Energy calculations added in red
2010 tests include: .327 mag follow-up, another round of .380 auto, 9mm Makarov, 9mm UltraData sheets in Excel format for real world guns
Data sheets in PDF format for real world guns
These tests, done in 2009, included most of the real-world guns we have tested, but not all of them.Data sheets in Excel format for tests in 2009
Data sheets in PDF format for tests in 2009
2009 Data sheets in Excel format with Muzzle Energy calculations added in red
2009 tests include: .327 mag, 10 mm, .41 magData sheets in Excel format for original tests in 2008
Data sheets in PDF format for original tests in 2008
2008 Data sheets in Excel format with Muzzle Energy calculations added in red
2008 tests include: .25 auto, .32 auto, .32 H&R, .380 auto, .38 special, 9mm Luger, .357 sig, .357 mag, .40 S&W, .44 special,
.44 mag, .45 auto, .45 Colt.