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improved case question
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<blockquote data-quote="65WSM" data-source="post: 1006459" data-attributes="member: 9551"><p>I theory, and that is what we are discussing here, the scale of the cartridge should have the same increase in capacity and performance with the "Improvement" regardless of size of the bullet. In use, some body and shoulders are tapered more than others. The 6.5-300 WSM you speak of starts with a 30 degree shoulder and less body taper than most cartridges. (I own a reamer and two rifles). It would gain very little through "improvement" Less than 3 percent. The .338 Lapua would gain a lot from "Improvement" whether it were kept .338 or necked down. The .338 Remington Ultra Mag is close to an Improved .338 Lapua in capacity. The Lapua case is built for possible use in full auto (machine guns) military weapons with very hot barrels and chambers. The Lapua has lots of taper and "Improving" it would push out the front of the shoulder and gain about 8 to 10 percent (My guess) in volume. </p><p></p><p>I own 6.5-06 improved, .22-6.5X47 Lapua Improved 40 degrees, .22-250 Ackley Improved,</p></blockquote><p></p>
[QUOTE="65WSM, post: 1006459, member: 9551"] I theory, and that is what we are discussing here, the scale of the cartridge should have the same increase in capacity and performance with the "Improvement" regardless of size of the bullet. In use, some body and shoulders are tapered more than others. The 6.5-300 WSM you speak of starts with a 30 degree shoulder and less body taper than most cartridges. (I own a reamer and two rifles). It would gain very little through "improvement" Less than 3 percent. The .338 Lapua would gain a lot from "Improvement" whether it were kept .338 or necked down. The .338 Remington Ultra Mag is close to an Improved .338 Lapua in capacity. The Lapua case is built for possible use in full auto (machine guns) military weapons with very hot barrels and chambers. The Lapua has lots of taper and "Improving" it would push out the front of the shoulder and gain about 8 to 10 percent (My guess) in volume. I own 6.5-06 improved, .22-6.5X47 Lapua Improved 40 degrees, .22-250 Ackley Improved, [/QUOTE]
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