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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
308 subsonic hunting bullet
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<blockquote data-quote="QuietTexan" data-source="post: 2385709" data-attributes="member: 116181"><p>It's a good theory - and it absolutely woks, too. That's where the monos like Leigh and Makers excel, with the way they peel open but the petals remain attached they function very similar to mechanical broadheads. On light skinned animals should open up completely in the vitals and cut through. The problem is the density of the metal means the bullet is lighter than a lead equivalent, which exacerbates the bullet length/barrel twist stability issue.</p><p></p><p>I'll also admit I didn't think about cast bullets, this might be a good application for them with the barrel twist he's using because of how they can be shaped.</p><p></p><p></p><p></p><p>My concern with stability isn't so much upon impact, it's primarily inside the bore of the suppressor. It doesn't take much to yaw the bullet through a baffle - be that from bullet instability, thread concentricity/ shoulder squareness, or baffle design - especially if you're using a suppressor that matches the caliber. </p><p></p><p>Cup and core or lead bullets will do better because they're generally shorter at any given weight than a mono. Suppressors with larger bores have a larger margin for error. Some baffle/core designs are more symmetrical than others User serviceable baffles can be put in wrong. Direct thread has fewer tolerances to stack up than QD mounts. Lot's to consider. The bare minimum is shine a light down the barrel and make sure the suppressor isn't visibly out of alignment. I'm worrying because in his case it's a marginal twist, if it was a 7 I wouldn't be concerned.</p><p></p><p>Cardinal rule of loading subonsics - work down... <em>without the can</em>. At least at first, you don't have to take it off for every tweak to a load forever - but if it's a new combo, be smart and take it off.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2385709, member: 116181"] It's a good theory - and it absolutely woks, too. That's where the monos like Leigh and Makers excel, with the way they peel open but the petals remain attached they function very similar to mechanical broadheads. On light skinned animals should open up completely in the vitals and cut through. The problem is the density of the metal means the bullet is lighter than a lead equivalent, which exacerbates the bullet length/barrel twist stability issue. I'll also admit I didn't think about cast bullets, this might be a good application for them with the barrel twist he's using because of how they can be shaped. My concern with stability isn't so much upon impact, it's primarily inside the bore of the suppressor. It doesn't take much to yaw the bullet through a baffle - be that from bullet instability, thread concentricity/ shoulder squareness, or baffle design - especially if you're using a suppressor that matches the caliber. Cup and core or lead bullets will do better because they're generally shorter at any given weight than a mono. Suppressors with larger bores have a larger margin for error. Some baffle/core designs are more symmetrical than others User serviceable baffles can be put in wrong. Direct thread has fewer tolerances to stack up than QD mounts. Lot's to consider. The bare minimum is shine a light down the barrel and make sure the suppressor isn't visibly out of alignment. I'm worrying because in his case it's a marginal twist, if it was a 7 I wouldn't be concerned. Cardinal rule of loading subonsics - work down... [I]without the can[/I]. At least at first, you don't have to take it off for every tweak to a load forever - but if it's a new combo, be smart and take it off. [/QUOTE]
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308 subsonic hunting bullet
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