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WIN231 for 40 S&W Major PF?

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I have about 5lbs of WIN231 laying around and I'm thinking of using it to load 180grain Precision Deltas for my Limited pistol. Is WIN231 worth it or should I buy a jug of Unique or SOLO 1000 and avoid the headache?

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DWFAN   

I'd use it. What headache could it cause? W231 is a great powder that works for 9mm, 40, 38, 45.. especially if you have it on hand already.

Solo is reverse temp sensitive and varies a bunch lot to lot.

Edited by DWFAN

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I'd use it. What headache could it cause? W231 is a great powder that works for 9mm, 40, 38, 45.. especially if you have it on hand already.

Solo is reverse temp sensitive and varies a bunch lot to lot.

My only concern with WIN231 is pressure. I know I'd have to load near max recommended load to make major. Is this even a valid concern?

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DWFAN   

Sierra lists 5.6 gr @ 1.125 oal for 1000 fps. I think youll make major just fine, especially if loaded long.

Start low and work up.

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I would definitely use it up. I used to use HP38(twin of 231) with 180 grain lead/moly/jhp. my load was 4.7-4.8 grains at 1.180 oal with mix brass for 167+pf out of an Edge. not the cleanest powder but recoil impulse was OK. I would use up the 231 and then go get some Solo or N320 afterward.

Edited by blaster113

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kalaur   

I found quite a bit of standard deviation while chronoing some 231 loads. IIRC, around 5.1 gr with a 180 MTG FMJ at about 1.190 was major in a 5" STI. I've found WST to be much more consistent with less variations when chronoing. I'd use up the 231 and look at other powders once its gone.

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BillD   

180 gr Bayou Bullet—MATCH LOAD

1.195 OAL

5.5 gr WW231

955fps at 70 degrees

172PF

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