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Hunting
Long Range Hunting & Shooting
How much throat erosion is “normal”
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<blockquote data-quote="VinceMule" data-source="post: 2790947" data-attributes="member: 122164"><p>Establish the relationship that a particular bullet likes to be away from the lands when the barrel is newish, then maintain that relationship for as long as you have enough bullet in the neck. Also, as the leade grows, you bleed off pressure just like a car with worn cylinder rings. The leade grows in length and dia. You add a tad bit more powder to get the velocity up to where it was when the barrel was newish. Simple, the barrel likes to resonate at a certain frequency which in a large part is the velocity of the bullet at the accuracy node you originally found.</p><p></p><p>Not following this method makes gunsmiths very happy as you simply are replacing barrels more frequently.</p></blockquote><p></p>
[QUOTE="VinceMule, post: 2790947, member: 122164"] Establish the relationship that a particular bullet likes to be away from the lands when the barrel is newish, then maintain that relationship for as long as you have enough bullet in the neck. Also, as the leade grows, you bleed off pressure just like a car with worn cylinder rings. The leade grows in length and dia. You add a tad bit more powder to get the velocity up to where it was when the barrel was newish. Simple, the barrel likes to resonate at a certain frequency which in a large part is the velocity of the bullet at the accuracy node you originally found. Not following this method makes gunsmiths very happy as you simply are replacing barrels more frequently. [/QUOTE]
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How much throat erosion is “normal”
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