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Is 231 temperature sensitive?

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Wobbley
bruce martindale
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Is 231 temperature sensitive? Empty Is 231 temperature sensitive?

Post by bruce martindale 4/29/2023, 8:46 pm

In lighter loads...4.2-231 is usually a solid performer with a heavier bullet, 200 gr. ( it never worked well with lighter ones) Today it was cold at the match and l suffered with light recoil and poor performance.

Bullseye loads 4.0-160  were perfect but 4.3 with a 200 were all over the place....bit that I'm going to guess was due to my gripping and the heavier recoil.

Thoughts?  Thanks

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Post by Wobbley 4/29/2023, 9:02 pm

I believe so.  It’s a ball powder of an “older” formulation that is more temperature sensitive than newer.
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Post by bruce martindale 4/29/2023, 9:24 pm

Thanks, how about WST?

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Post by Wobbley 4/29/2023, 9:48 pm

WST came from 452AA it suffers from the same issue, but each seem to be a law unto itself.
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Post by ScottB 4/30/2023, 9:19 am

I had issues at a match last April using 4.2gr of 231 and a 200gr LSWC.  Temperature was in the low to mid 30's and the gun wouldn't cycle reliably.  I never had a problem with that load prior to then and putting loaded magazines in my pockets while scoring to warm them up helped so I think it is temperature sensitive.

Other shooters thought it could have been a combination of temperature sensitivity and gun oil thickening up in the cold.  I was using Hoppes Gun Oil.
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Post by ric1911a1 4/30/2023, 9:25 am

I prefer WST over 231 for .45 wadcutter loads. Good old Bullseye works as well as any..........

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Post by Froneck 5/3/2023, 10:53 pm

I like 700X in my 45acp. Sanderson told me a while ago when Atlanta Arms was having problems getting powder for AMU ammo they were using 700X. Powder measure in my Dillon 650 and 550 were quite constant in dropping same weight of the bulky 700X

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Post by Jon Eulette 5/3/2023, 11:05 pm

I remember in 2013 Zero was using 700X for their factory ammunition. They had 20,000 pounds of it!
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