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The Range
Ammo & Reloading
Trimming for 38 Special
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<blockquote data-quote="swampratt" data-source="post: 3788773" data-attributes="member: 15054"><p>There you go again assuming things.</p><p>Want the data??????????????????????</p><p></p><p>Well here it is in a big arsed nut shell.</p><p>Lyman 49th 357 Magnum 170gr. Linotype, 2400 powder at 13.5 gr 1242 fps at 41,100 C.U.P.</p><p>NOT gas checked.</p><p></p><p>Firearm used was Universal Receiver 4" 1-18 3/4 twist and Groove Dia. .356"</p><p>Cast bullet sized to .357"</p><p></p><p>I used the same load but 6" revolver I do not know the twist and the Bullet was Wheel weight lead.</p><p>Probably softer than Linotype. It is a Lee bullet with Gas check and Lee Alox Lube.</p><p>I gas Checked it.</p><p></p><p>My groove diameter is .3565" I Sized my bullets to .357".</p><p>1370 for my longer barrel pistol with larger Inside diameter by .0005"</p><p>My grooves and rifling in this German revolver are glass smooth also.</p><p></p><p></p><p>Look at that pressure of the Lyman load 41,100 C.U.P. Max C.U.P. for the 357 Magnum is 45,000</p><p>Larger groove, softer bullet, longer barrel, same load, more FPS I do not think I have exceeded any pressure limits.</p><p></p><p>NOTHING I STATED IS DANGEROUS.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3788773, member: 15054"] There you go again assuming things. Want the data?????????????????????? Well here it is in a big arsed nut shell. Lyman 49th 357 Magnum 170gr. Linotype, 2400 powder at 13.5 gr 1242 fps at 41,100 C.U.P. NOT gas checked. Firearm used was Universal Receiver 4" 1-18 3/4 twist and Groove Dia. .356" Cast bullet sized to .357" I used the same load but 6" revolver I do not know the twist and the Bullet was Wheel weight lead. Probably softer than Linotype. It is a Lee bullet with Gas check and Lee Alox Lube. I gas Checked it. My groove diameter is .3565" I Sized my bullets to .357". 1370 for my longer barrel pistol with larger Inside diameter by .0005" My grooves and rifling in this German revolver are glass smooth also. Look at that pressure of the Lyman load 41,100 C.U.P. Max C.U.P. for the 357 Magnum is 45,000 Larger groove, softer bullet, longer barrel, same load, more FPS I do not think I have exceeded any pressure limits. NOTHING I STATED IS DANGEROUS. [/QUOTE]
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