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Old 03-11-2009, 07:54 AM
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Erich Erich is offline
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Location: High Desert of NM, USA
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Just as an illustration, here are some velocities I chron'd from a 2 3/4" Beretta 21A last year:

Okay, here are a big bunch of data for different ammos from the 2 3/8" pop-up barrel.

Winchester Super X Super Speed RN 40-gr plated round nose
M 811.3/ES 46.8/SD 20.89

CCI SGB (Small Game Bullet) 40-gr LFP
M 841.2/ES 67.1/SD 22.79

CCI Blazer 40-gr RNL
M 830.1/ES 143.7/SD 51.41

PMC Zapper 40-gr PRNL (red box)
M 797.5/ES 101.2/SD 52.84

PMC Zapper 40-gr PRNL (orange box)
M 847.7/ES 98.76/SD 38.74

CCI Velocitor (new) 40-gr PHP
M 852.2/ES 71.41/SD 28.14

Aguila SSS 60-gr RNL
M 606.0/ES 47.34/SD 21.07

Aguila Super Colibri 20-gr lead truncated cone
M 494.4/ES 19.74/SD 8.18

CCI Stinger 32-gr PHP
M 1004/ES 86.16/SD 38.45

Aguila Interceptor 40-gr PFP
M 931.8/ES 155.2/SD 55.79

CCI Mini-Mag 40-gr PRN
M 879.9/ES 16.60/SD 7.07

Federal Champion bulk 36-gr PHP
M 928.1/ES 105.9/SD 38.96

CCI Mini-Mag 36-gr PHP
M 848.1/ES 71.00/SD 27.87

Aguila .22 Super Extra 40-gr PRN
M 836.1/ES 68.87/SD 29.42

Federal Automatch bulk 40-gr RNL
average 849.3 fps/ES 29.58 fp/SD 11.40
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