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Hunting
Long Range Hunting & Shooting
208 or 225 ELDM
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<blockquote data-quote="budlight" data-source="post: 2965499" data-attributes="member: 2939"><p>I'm going to be a Nay sayer! 18 inches of 10 twist is a no go. Your rifle was designed for 180 - 208. Anything heavier and you have very low terminal velocity. I'd even question 208 out of a 18 inch. I was a long time 30-378 person originally a 28 inch barrel and 2 inch brake I later went to a 30 inch barrel and 2 inch brake. I loaned my rifle to others doing hunting all over. So it took it's fair share of big game. </p><p></p><p>I would rebarrel it longer and possibly faster twist rate. </p><p></p><p>As to powder US869 is what i used because reloader 33 wasn't out yet.</p><p></p><p><strong>Good reads:</strong></p><p></p><p>[URL unfurl="true"]https://www.ballisticstudies.com/Knowledgebase/.300+Remington+Ultra+Magnum.html#:[/URL]</p><p></p><p>[URL unfurl="true"]https://www.longrangehunting.com/threads/300-rum-barrel-length.24101/[/URL]</p><p></p><p></p><p>~:text=300%20RUM%20free%20bore%20design,and%20208%20grain%20A-Max.</p></blockquote><p></p>
[QUOTE="budlight, post: 2965499, member: 2939"] I'm going to be a Nay sayer! 18 inches of 10 twist is a no go. Your rifle was designed for 180 - 208. Anything heavier and you have very low terminal velocity. I'd even question 208 out of a 18 inch. I was a long time 30-378 person originally a 28 inch barrel and 2 inch brake I later went to a 30 inch barrel and 2 inch brake. I loaned my rifle to others doing hunting all over. So it took it's fair share of big game. I would rebarrel it longer and possibly faster twist rate. As to powder US869 is what i used because reloader 33 wasn't out yet. [B]Good reads:[/B] [URL unfurl="true"]https://www.ballisticstudies.com/Knowledgebase/.300+Remington+Ultra+Magnum.html#:[/URL] [URL unfurl="true"]https://www.longrangehunting.com/threads/300-rum-barrel-length.24101/[/URL] ~:text=300%20RUM%20free%20bore%20design,and%20208%20grain%20A-Max. [/QUOTE]
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208 or 225 ELDM
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