Pedersoli Side by Sides

These test patterns were shot using one of two Pedersoli Side by Side Shotguns.  Both guns are equipped with choke tubes.

September 18, 2011 Improved Shot Cartridge

posted Sep 19, 2011, 10:09 AM by Peter Lucas   [ updated Sep 20, 2011, 10:41 AM ]

Tests conducted with the improved shot cartridge.  All tests conducted with 1 1/8 ounces of Number 4 shot at 30 yards.  The propellent was 3 1/4 drams of Goex FFg.  A total of 14 test patterns were shot. 

The barrels were not cleaned prior to conducting the tests. The cartridges were lubed with Crisco/paraffin/bees wax.  The base of each cartridge was filled with the lube.  The barrels became noticeably cleaner as testing progressed.  The lube saturated base wad impacted the patterning paper on several occasions.

The Right Barrel had a Carlson Modified Choke Tube and was shot first.

The Left Barrel had a Pederoli Modified Choke Tube and was shot second.

Left Barrel
Pederoli modified choke tube
 Right Barrel    
Carlson modified choke tube
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  


Left Barrel Averages



Right Barrel Averages











January 9, 2010.

posted Feb 25, 2011, 6:07 AM by Peter Lucas


Tests using Pedersoli Two were fired with 2 unlubed felt wads over the powder and 1 cardboard over the shot wad.   1 1/8 oz of 9's and 3 drams of pyrodex.  Testing was conducted with Improved Cylinder tubes using Pedersoli Two at 20 yards.  Two strings were fired.  The first string used felt wads with a paper cover. The shots listed as 9A and 10A were fired at the end of the testing and were actually shots 17 and 16. The numbers were reversed in order to have the right barrel correspond to the odd number. The results were as follows:


 Pellets in 10 inch at 20 yardsPellets in 20 inch at 20 yardsPellets in 30 inch at 20 yardsTotal pellets in 30 inch at 20 yardsPercent pellets in 10 inch at 40 yardsPercent pellets in 20 inch at 40 yardsPercent pellets in 30 inch at 40 yardsTotal percent in 30 inch at 40 yardsnotes
Load 1224344114682924.43063.4 
Load 22683711307699.726.928.665.2 
Load 32822636360813.724.922.661.2 
Load 42353751357458.823.427.659.8 
Load 5922591965473.39.316.729.3Dough nut hole
Load 62253821007079.325.63064.9 
Load 72363321547229.32324.256.5 
Load 8522522835871.95.212.719.8Dough nut hole
Load 9A2474011097577.925.93265.8 
Load 10A26036712675310.325.328.263.8 
 212.1334.6141687.78.3221.3925.2654.97 

    When the two shots which produced doughnut hole patterns are removed from the sample, the results are very consistent with 40 yard pattern percentages of 63, 65, 61, 59, 64, 56, 65, 63 and 54.  The average of these shots is approximately 63% which is slightly more dense than the standard modified choke.  The averages for the shots without the doughnut hole were as follows:

 Pellets in 10 inch at 20 yardsPellets in 20 inch at 20 yardsPellets in 30 inch at 20 yardsTotal pellets in 30 inch at 20 yardsPercent pellets in 10 inch at 40 yardsPercent pellets in 20 inch at 40 yardsPercent pellets in 30 inch at 40 yardsTotal percent in 30 inch at 40 yards
 
Average

24735411671810%25%28%63%

    I was not able to determine what caused the doughnut hole patterns.  The first occurrence was at shot 3 from the right barrel and shot 4 from the left barrel.  Since this string was fired with pyrodex, fowling should not have been a significant factor with only 3 or 4 shots being fired from the barrels. 


    The barrels were cleaned and testing continued with non-paper backed wads.  The results follows.  As can be seen 2 of the four test shots had doughnut holes and testing was discontinued at that point.

 Pellets in 10 inch at 20 yardsPellets in 20 inch at 20 yardsPellets in 30 inch at 20 yardsTotal pellets in 30 inch at 20 yardsPercent pellets in 10 inch at 40 yardsPercent pellets in 20 inch at 40 yardsPercent pellets in 30 inch at 40 yardsTotal percent in 30 inch at 40 yardsnotes
Load 91773811066646182550 
Load 1025134816176010252358 
Load 1184241235560291527Dough nut hole
Load 121382511545435141938Dough nut hole
Average1633051646326162143 
Average loads 9 & 102143651347128222454 

    In addition to the increased doughnut hole problem, density also suffered for the shots were a normal pellet distribution was achieved as compared to the paper backed wads. 

 

November 7, 2009; Felt Wads

posted Feb 25, 2011, 6:05 AM by Peter Lucas

Tests were conducted using two dry felt wads under the cartridge and 3.5 drams of Pyrodex Select; one ounce 4 shot with modified choke at 20 yards.  Both shots were fired from the right barrel.  The left barrel shots did not produce adequate quality pictures for the software.   The results for the loose charge on November 7 were as follows:


Baseline Nov 7 - 1 oz 4 shot, 3.5 drams pyrodex

10 inch @ 20 yards

20 inch @ 20 yards

30 inch @ 20 yards

total

load 1

99

24

125

load 3

96

33   

5   

134

Average   

97.5

28.5

3.5

129.5

October 17, 2009 Felt Wads

posted Feb 25, 2011, 6:04 AM by Peter Lucas

October 17, 2009. Pedersoli SxS. 

The October 17 tests were based on two non-lubed (or dry) felt or dry wads over the powder and 1 dry felt wad over the shot.   1 oz of 4's and 3.5 drams of pyrodex.  Modified choke at 20 yards.  This load should produce velocities of approximately 1180 feet per second.  All shots were fired at 20 yards, except for shots five and six which were shot at 30 and then adjusted using the software.  The results for this load was as follows:


 

 

10 inch circle @ 20 yards

20 inch circle @ 20 yards

30 inch circle @ 20 yards

total

Load  1

66

57

21

151

Load 2

61

51

19

135

Load 3

40

56

37

153

Load 4

91

39

12

144

Load 5

58

56

22

137

Load 6

63

62

8

138

Average

63.17

53.50

19.83

143

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