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147gr BBI w/ Win 231?


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I have a enough WIN 231 on hand to do my first batch of BBIs. I've been looking for Solo, N320, etc. but have been unsuccessful. My Hornaday and Lyman's manual don't have any tables for Win 231 w/ a lead 147gr. At a match this past weekend, a respected reloader suggested that it would work fine. I've scoured the forum and couldn't find any suggested loads for Win 231 with a coated bullet.

So is anyone? Are there any suggested loads?

This will be going out of a M&P 5". It doesn't need to make PF, but it'll need to knock over steel.

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Try 3.6g of 231 with a 147g bullet at 1.155. That's what my brother loads and it averaged 872 FPS out of my M&P Pro with a 40-to-9 KKM conversion barrel.

That was with a plated bullet. You might be able to go down to 3.5 or 3.4.

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I shoot 3.6g of WIN231 with 147 FMJ (Zero) out of my M&P 5" and average 915FPS, so backing off a tenth or two wouldn't be a bad idea. Any reason why more people don't use 231?

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