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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel cooling devices / practices
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<blockquote data-quote="Bart B" data-source="post: 650487" data-attributes="member: 5302"><p>Doesn't matter whether brakes are used or not. The recoil that makes heavy-kickers harder to shoot accurately happens while the bullet's going down the barrel. Us humans don't hold rifles exactly the same way to our shoulder for every shot; that barrel-time recoil moves the rifle before the bullet clears the muzzle. Same reason that large bore double rifles have their bore axes crossing at 10 to 30 yards down range; they jump to the left when the left barrel's fired, right for the right one. Double rifle breech centers are an inch or more apart; if one inch, the bore axes cross at 4 MOA if 25 yards is where they're regulated at.</p><p></p><p>No, I don't think you'll do any damage to the barrel's throat shooting it that way. There are two exceptions. One is if your loads are over SAAMI spec for pressure; that really shortens barrel life. The other is if ball powders are used; they're horrible to get good accuracy with but they typically give more barrel life for their not so great accuracy. IMR4350's been the favorite for accuracy and barrel life in virtually all 30 caliber magnums with 190 to 220 grain bullets using between 60 to 75 grains of powder.</p></blockquote><p></p>
[QUOTE="Bart B, post: 650487, member: 5302"] Doesn't matter whether brakes are used or not. The recoil that makes heavy-kickers harder to shoot accurately happens while the bullet's going down the barrel. Us humans don't hold rifles exactly the same way to our shoulder for every shot; that barrel-time recoil moves the rifle before the bullet clears the muzzle. Same reason that large bore double rifles have their bore axes crossing at 10 to 30 yards down range; they jump to the left when the left barrel's fired, right for the right one. Double rifle breech centers are an inch or more apart; if one inch, the bore axes cross at 4 MOA if 25 yards is where they're regulated at. No, I don't think you'll do any damage to the barrel's throat shooting it that way. There are two exceptions. One is if your loads are over SAAMI spec for pressure; that really shortens barrel life. The other is if ball powders are used; they're horrible to get good accuracy with but they typically give more barrel life for their not so great accuracy. IMR4350's been the favorite for accuracy and barrel life in virtually all 30 caliber magnums with 190 to 220 grain bullets using between 60 to 75 grains of powder. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Barrel cooling devices / practices
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