Blunderbuss Project

    There appears to have been two different sets of tests which were conducted with respect to the effect of the muzzle flare on the disbursement of shot.   In an article titled: Did It Work published in the American Rifleman, is stated that "the bell (flaring bore) of the blunderbuss had very little effect on the dispersion of the shot."

    A more rigorous test was discussed in an article titled  Myths of the Blunderbuss by Melvin Flanagan. Flanagan shot a total of 108 patterning tests were conducted for the blunderbuss barrels evaluation series of tests.Fanagan, concluded that the prior work was flawed and that bell did, in fact, increase the shot disbursement. However, Flanagan was shooting a very heavy charge(up to 330 grains of black powder) at a short distance (10 yards).  Consequently, Flanagan's work may not translate to more sensible loads in a blunderbuss.

    The following tests relate to the patterning of Blunderbuss'.  I hope to collect patterns from a variety of blunderbuss'.


December 28, 2011

posted Mar 26, 2012, 9:03 AM by Peter Lucas   [ updated Mar 26, 2012, 9:05 AM ]

11 Gauge Blunderbuss shot at Golden Gun Club.

The patterns were all shot at 20 yards
  • 65 Grains of Goex Renactor Powder
  • 2 nitro Cards
  • 1 ounce of 9 shot.
  • 1 over shot card
 
 
 
 


March 24, 2012

posted Mar 26, 2012, 8:52 AM by Peter Lucas   [ updated Mar 28, 2012, 3:51 PM ]

    11 Gauge Blunderbuss with 20 inch barrel. Patterns shot at 20 yards. Tests at Golden Gun Club.
  •     67.5 Grains Goex Renactor Powder.
  •     2 Nitro Cards
  •     .95 ounces of Reclaimed Shot
  •     1 over shot card

 
Pellet
Counts

inner 10" 79

10-20" 113

20-30" 50

Total 269
 
 Pellet
Counts

inner 10" 26

10-20" 95

20-30" 130

Total 306
 
 Pellet
Counts

inner 10" 79

10-20" 132

20-30" 53

Total 292
 
 Pellet
Counts

inner 10"  97

10-20" 139

20-30" 87

Total  355
 
 Pellet
Counts

inner 10" 23

10-20" 124

20-30" 114

Total 305
 
 Pellet
Counts

inner 10" 105       
10-20" 142

20-30" 77

Total 340
 
 Pellet
Counts

inner 10" 87

10-20" 176

20-30" 70

Total 349
 
 Pellet
Counts

inner 10"  81

10-20" 132

20-30" 66

Total 291
 
 Pellet
Counts

inner 10" 110

10-20" 139

20-30" 84

Total 361
  

Statistical Analysis






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