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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338-408 chey-tac powders
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<blockquote data-quote="NZ Longranger" data-source="post: 486895" data-attributes="member: 14"><p>We haven't shot 20N29 enough to be categorical about barrel life yet, but the calculator says its significantly better than H50BMG. It certainly had good ES's, but isn't as temperature unaffected as H50BMG, but nothing is! That's H50BMG's strong point for sure!</p><p>I intend to do more work with 20N29 in the full length version, but as we mainly shoot the short version now due to its performance with 869 being better than anything in the long version, its hard to make myself get around to it! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p><p>Greg</p></blockquote><p></p>
[QUOTE="NZ Longranger, post: 486895, member: 14"] We haven't shot 20N29 enough to be categorical about barrel life yet, but the calculator says its significantly better than H50BMG. It certainly had good ES's, but isn't as temperature unaffected as H50BMG, but nothing is! That's H50BMG's strong point for sure! I intend to do more work with 20N29 in the full length version, but as we mainly shoot the short version now due to its performance with 869 being better than anything in the long version, its hard to make myself get around to it! :D Greg [/QUOTE]
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338-408 chey-tac powders
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