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Old 08-01-2009, 23:19   #19
DJ Niner
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Join Date: Feb 2001
Location: North-Central USA
Posts: 17,692
Winchester 555 velocity test, temperature 68-70 degrees F, velocities measured 10 feet from the muzzle.

Smith & Wesson model 317 revolver, 3-inch barrel:

958
947
962
955
968
969
932
949
958
982

Avg 958 FPS.

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Browning Buck Mark Camper autoloading pistol, 5.5-inch barrel:

1039
1027
1086
1066
1015
1008
1072
1078
1039
1048

Avg 1048 FPS.

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Ruger 10/22 autoloading rifle, factory 18.5-inch barrel, blue steel:

1178
1196
1182
1182
1202
1158
1143
1189
1210
1200

Avg 1184 FPS.

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Remington model 572 Fieldmaster slide-action rifle, 21-inch barrel:

1202
1190
1199
1183
1169
1205
1205
1175
1196
1260

Avg 1198 FPS.

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No stoppages or malfunctions of any kind were noted while using this ammunition.



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