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The Range
Ammo & Reloading
.38 Special Cowboy Load in .357 Brass Question/Concern
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<blockquote data-quote="swampratt" data-source="post: 3738796" data-attributes="member: 15054"><p>I have shot thousands of rounds of 38 and 357 brass through my 357 6" revolver.</p><p>I have used the same load in the books for 38 special as I have in the 357 brass.</p><p>Talking reduced loads.</p><p></p><p>But those powders were not slow powders.</p><p>The slowest was AA#5 and I have used HP38 and 231 and reduced them.</p><p>Red Dot and Bullseye were used in those same cases 38 and 357 cases and reduced those to make the bullet barely exit the barrel.</p><p>Those last 2 powders are very fast.</p><p></p><p>That detonation issue many talk about is reserved for large volume cases in rifle with slow powders.</p><p>The volume difference between 38 special and 357 is not an issue with a fast powder.</p><p></p><p>I do not think I would reduce H110 or 296 powder though.</p><p>That powder is a bit slow and I would not worry about detonation with it but sticking a bullet in the barrel running it reduced.</p><p></p><p>Lets look at 2400 powder I have used 14 gr in 357 magnum cases and 14 gr in 30-30 cases.</p><p>No detonation issues and that is a lot of extra space.</p><p></p><p>I have used 3 gr of Bullseye and Red dot in .308 cases No filler and no detonation issues. Hundreds of rounds shot.</p><p>I used 1.7 gr Bullseye in 357 cases to fire lap my 686 that was just enough to get the Alox coated gas checked rolled in grit 170gr bullet down the barrel and out.</p><p>I tried .5 gr and stuck the bullet that was harder cast but the pure soft lead ones would shoot right out.</p><p></p><p>That is way reduced but again fast powder.</p><p>Your 320 powder is faster than some powders that I load 38 loads in 357 cases.</p><p></p><p>The worst I have seen with reduced loads is dirty barrel unburnt powder and a stuck bullet.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3738796, member: 15054"] I have shot thousands of rounds of 38 and 357 brass through my 357 6" revolver. I have used the same load in the books for 38 special as I have in the 357 brass. Talking reduced loads. But those powders were not slow powders. The slowest was AA#5 and I have used HP38 and 231 and reduced them. Red Dot and Bullseye were used in those same cases 38 and 357 cases and reduced those to make the bullet barely exit the barrel. Those last 2 powders are very fast. That detonation issue many talk about is reserved for large volume cases in rifle with slow powders. The volume difference between 38 special and 357 is not an issue with a fast powder. I do not think I would reduce H110 or 296 powder though. That powder is a bit slow and I would not worry about detonation with it but sticking a bullet in the barrel running it reduced. Lets look at 2400 powder I have used 14 gr in 357 magnum cases and 14 gr in 30-30 cases. No detonation issues and that is a lot of extra space. I have used 3 gr of Bullseye and Red dot in .308 cases No filler and no detonation issues. Hundreds of rounds shot. I used 1.7 gr Bullseye in 357 cases to fire lap my 686 that was just enough to get the Alox coated gas checked rolled in grit 170gr bullet down the barrel and out. I tried .5 gr and stuck the bullet that was harder cast but the pure soft lead ones would shoot right out. That is way reduced but again fast powder. Your 320 powder is faster than some powders that I load 38 loads in 357 cases. The worst I have seen with reduced loads is dirty barrel unburnt powder and a stuck bullet. [/QUOTE]
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