Guesstimate on velocity


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dwhite
August 10, 2009, 06:17 PM
I've been shooting a 180 grain lead truncated cone bullet using 3.3 grains of Clays powder with good accuracy. Book says this should be around 800 fps from my 4 inch barreled SW40VE.

I bought some 170 grain LSWC's and loaded a test batch using the same charge of Clays. I got one ragged hole for 5 shots at 15 yards. Accuracy was amazing. Recoil was very mild. Cases almost dropped at my feet. I like this load.

Any guess what velocity this is pushing? I don't have access to a chronograph.

All the best,
D White

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rcmodel
August 10, 2009, 06:23 PM
I'm gonna guess 750 FPS.

rc

Walkalong
August 10, 2009, 06:46 PM
Must sound like popcorn when it goes off.

3.3 Grs Clays and a 158 Gr plated bullet gives me around 725+ FPS from a 6" .357. Very accurate, and very pleasant.

I say less than 750 FPS

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