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The Range
Ammo & Reloading
.357 Sig
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<blockquote data-quote="Blitzfike" data-source="post: 1792255" data-attributes="member: 807"><p>Theoretically the 357 sig headspaces on the case mouth. I have formed 357 sig brass by running 40sw into the full length sizing die. The converted 40's are s few thousandths shorter, but seem to headspace on the shoulder just fine. (I checked for chamber fit before continuing, but you might have to adjust your die out in some cases. ) I have reloaded some of them up to 6 times without a failure. The shorter neck does present a problem with crimping some bullet styles. The problem with crimping the bullet is what made me look at some of the 357 mag bullets. I tried some with reduced loads and had no problems, so I went to standard load data and they work fine. I have never trimmed any of my 357 sig brass and some of it has been loaded 8 times. I love the performance and accuracy of the 357 sig. I also have a 400 Cor-Bon conversion for one of my 1911's, that is a 45 necked down to 40. Gives really close performance to a 10mm mag, but since I also shoot 10mm, I seldom bring out the 400 conversion. Blitzfike</p></blockquote><p></p>
[QUOTE="Blitzfike, post: 1792255, member: 807"] Theoretically the 357 sig headspaces on the case mouth. I have formed 357 sig brass by running 40sw into the full length sizing die. The converted 40's are s few thousandths shorter, but seem to headspace on the shoulder just fine. (I checked for chamber fit before continuing, but you might have to adjust your die out in some cases. ) I have reloaded some of them up to 6 times without a failure. The shorter neck does present a problem with crimping some bullet styles. The problem with crimping the bullet is what made me look at some of the 357 mag bullets. I tried some with reduced loads and had no problems, so I went to standard load data and they work fine. I have never trimmed any of my 357 sig brass and some of it has been loaded 8 times. I love the performance and accuracy of the 357 sig. I also have a 400 Cor-Bon conversion for one of my 1911's, that is a 45 necked down to 40. Gives really close performance to a 10mm mag, but since I also shoot 10mm, I seldom bring out the 400 conversion. Blitzfike [/QUOTE]
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