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.357 magnum velocity

11b6r
Loading 15 grains of 2400, 158 gr JSP, CCI 550 Magnum primers. Shoots quite well- manual lists muzzle velocity of about 1400 fps, but that is from a 6 inch revolver. I am using a 10 inch revolver (Dan Wesson). Anyone have an educated guess on muzzle velocity for mine? Good 100 meter load.
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4 comments

Date Votes
  • CryptoChief
    You can usually expect and additional 25 to 50 fps per one inch of each additonal barrel length. Would depend on powder burn and efficiency to a degree. I'd say 1500 to 1600 for your Dan Wesson but a chronograph would be nice.

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  • 11b6r
    thanks Chief- thought it should be somewhere in that range, but no tenga chrono. Drop is about 3" at 100, so that checks. Interesting screen name you have- used to have an account in that field. Glad when I rotated out, and someone else had to take the account.
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  • CryptoChief
    Worked for Commander Naval Security Group Command (CNSG) and Director Communications Security Material Systems (DCMS). Roger that on someone else taking the account. Has been the cause of many a grey hair for many a folk.

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  • 11b6r
    Chief- was a grunt, got press-ganaged into a slot as commo platoon leader- former platoon leader had trouble accounting for some materials. Decided early on I did not want to go that route- weather at Leavenworth sux. Chow is worse. [:p]
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