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.40 S&W: Universal Powder

Disclaimer: All of the following loadings were taken either from gun powder reloading manuals or other reloading manuals that may vary in powder charges greatly. Various components combined, make all the difference in the world. I am not responsible for your actions. Always refer to official reloading manuals when reloading. As usual, I must say that this information is what works for me. Use your own common sense. You are responsible for your own actions!

 

I used a Steyr M40 with a standard 4" barrel.

180 grain West Coast Copper flat point bullets; Winchester primers; mixed brass; 1.130 OAL.

Hodgdon Universal Powder; The following charges are within limits of the official Hodgdon Reloading Manual.

Grains

High Vel.

Low Vel.

Extr. Sprd.

Avg. Vel.

Std. Dev.

Avg. P.F.

Max. Brass Diameter Exp.

5.0

955

901

54

928

15

167

0.428

5.2

1002

945

56

987

17

177

0.4285

5.4

1015

971

43

996

14

179

0.429

5.6

1030

993

36

1016

10

182

0.429

5.8

1056

1027

29

1045

8

188

0.4295

Note: As you know, chronograph readings are affected by weather conditions. For this round of testing, the temperature was around 60 degrees and it was a cloudy day.

The new USPSA/IPSC Major Power Factor has been lowered to 165, which it makes it a little safer to make major with 180 grain and lighter bullets now.

Version 02/11/01 from Pete's 357 SIG Caliber Page

Disclaimer/Warning from 357SIG: Pete's 357 SIG Caliber Page


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