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looking for load data for 357 mag.

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Galen
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looking for load data for 357 mag.

Post by Galen » Sat Jul 17, 2021 2:33 pm

I have 158 gr. fmft bullets and using 4 gr. of HP 38 powder. I chrone five out and they ran from 1424 to 1460 fps. the bullets I have said max speed is 1200fps. I am shooting them out of a bb 38/ 357mag

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fortyshooter
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Re: looking for load data for 357 mag.

Post by fortyshooter » Sat Jul 17, 2021 2:57 pm

Tell me what the FMFT stands for. Are they powder coated or copper plate?

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BigAl52
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Re: looking for load data for 357 mag.

Post by BigAl52 » Sat Jul 17, 2021 4:49 pm

That speed sounds real high for 4 gr of HP-38 which is the same as Winchester 231
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Galen
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Re: looking for load data for 357 mag.

Post by Galen » Sat Jul 17, 2021 5:00 pm

Berry's copper-jacketed bullets flat top.
Last edited by Galen on Sat Jul 17, 2021 5:03 pm, edited 1 time in total.

Galen
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Re: looking for load data for 357 mag.

Post by Galen » Sat Jul 17, 2021 5:02 pm

fortyshooter wrote:
Sat Jul 17, 2021 2:57 pm
Tell me what the FMFT stands for. Are they powder coated or copper plate?
Berry's copper-jacketed bullets flat top

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BigAl52
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Re: looking for load data for 357 mag.

Post by BigAl52 » Sat Jul 17, 2021 5:12 pm

According to Hogdon powder data 5 grains of 231 will yield 1100 fps. I push plated bullets all the time with 8 gr of Unique and Universal Clays. I dont have any issues
Don't let the old man in


H001T .22LR
H001T .22LR MONUMENT VALLEY
H003T PUMP .22LR
BBS .41 MAG
SS .357
SIDE GATE 38-55

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