Loading .380 Short Barrel Speer Gold Dots


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cvo
February 13, 2011, 06:57 PM
I have the data on the Speer 3992 bullet, but I can't find any data on the 4020 short barrel bullet. Anyone know the difference in the Two bullets?

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GW Staar
February 13, 2011, 08:26 PM
I would expect that the data is the same. the bullet co-efficient is .092 compared to the other bullet's .101, and that's the only difference in specs. The short barrel bullet will expand better at the low velocities resultant out of a short barrel...as compared with the regular Gold Dot using the same load data.

Look at page 918 in the Speer No 14 Manual: This is .40S&W data, but notice that it shows the exact same data for 80gr. GDHP and 80gr. GDHP SB (short barrel).

cvo
February 13, 2011, 09:01 PM
Thanks, I just checked that out and it does give the load data on the .40

GW Staar
February 13, 2011, 09:54 PM
You're welcome....but just to cover my butt...please don't use the .40S&W data on that page for your .380, use the regular .380 GD data on the .380 GD short barrel...:D

Murphy sucks.

cvo
February 13, 2011, 10:10 PM
I sent a email to Speer, lets see what they say.

Cop Bob
February 16, 2011, 02:46 PM
7625 powder, in the .380 with lighter bullets it is amazing and clean. Serria has listed data for it for years.

cvo
February 16, 2011, 04:31 PM
Speer got back to me and said " Use the same data as 3992 bullet".

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