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Precision Reloading For Long Range Hunting by Jerry Teo
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<blockquote data-quote="USAFM6" data-source="post: 663547" data-attributes="member: 47909"><p>Sorry but I am confused with something and hope someone can assist. </p><p></p><p>When checking to ensure the bullet is seated straight with the gauge, if tolerances are outside of desired amounts is there a way to correct this or are these rounds relegated to plinking rounds? </p><p></p><p>While here in Afghanistan I ordered a Savage Model 111 Long Range Hunter in .338 Lapua and want to load for best accuracy now instead of just thick woods short range deer rounds. I've researched various dies and have a Forster Bench Rest seater die, a Redding body Die, & a Redding Competition Bushing neck sizing die in my "wish list" ready to purchase once I understand all of this better. For proper neck tension, can someone please tell me what size bushing I'll need for the .338 Lapua neck sizing die or is this something specific to my gun after fire-forming? The Redding website states this for determining bushing size;</p><p></p><p>"The easiest way to determine the proper diameter bushing is to measure the neck diameter of several loaded or dummy cartridges with an accurate micrometer. (These dummy cartridges can be loaded with your old set of dies or a borrowed set.) Then, simply subtract 0.001" from the cartridge that had the smallest average measurement. This will allow for a slight amount of spring back and create a proper press fit for the bullet." With being in Afghanistan and not having access to my micrometer or .338 cases, Wikipedia states that the neck diameter for a .338 Lapua is .372. But, Redding has a list of bushings applicable to each round and they recommend .361-.369 for the .338 Lapua. If I go with the above recommendations for calculations and only subtract .001 from .372 it doesn't fall in the range of the recommended bushings. Can someone please explain what I am missing? Is the Wikipedia neck diameter incorrect? </p><p></p><p>I've always only used the 2 die sets and appreciate the information in this article to help produce more accurate rounds. </p><p></p><p>Sorry for my naivety in all this and very much appreciate any assistance.</p></blockquote><p></p>
[QUOTE="USAFM6, post: 663547, member: 47909"] Sorry but I am confused with something and hope someone can assist. When checking to ensure the bullet is seated straight with the gauge, if tolerances are outside of desired amounts is there a way to correct this or are these rounds relegated to plinking rounds? While here in Afghanistan I ordered a Savage Model 111 Long Range Hunter in .338 Lapua and want to load for best accuracy now instead of just thick woods short range deer rounds. I've researched various dies and have a Forster Bench Rest seater die, a Redding body Die, & a Redding Competition Bushing neck sizing die in my "wish list" ready to purchase once I understand all of this better. For proper neck tension, can someone please tell me what size bushing I'll need for the .338 Lapua neck sizing die or is this something specific to my gun after fire-forming? The Redding website states this for determining bushing size; "The easiest way to determine the proper diameter bushing is to measure the neck diameter of several loaded or dummy cartridges with an accurate micrometer. (These dummy cartridges can be loaded with your old set of dies or a borrowed set.) Then, simply subtract 0.001" from the cartridge that had the smallest average measurement. This will allow for a slight amount of spring back and create a proper press fit for the bullet." With being in Afghanistan and not having access to my micrometer or .338 cases, Wikipedia states that the neck diameter for a .338 Lapua is .372. But, Redding has a list of bushings applicable to each round and they recommend .361-.369 for the .338 Lapua. If I go with the above recommendations for calculations and only subtract .001 from .372 it doesn't fall in the range of the recommended bushings. Can someone please explain what I am missing? Is the Wikipedia neck diameter incorrect? I've always only used the 2 die sets and appreciate the information in this article to help produce more accurate rounds. Sorry for my naivety in all this and very much appreciate any assistance. [/QUOTE]
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