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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
30 SM Build Barrel Twist??
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<blockquote data-quote="huntinherrrington" data-source="post: 2129773" data-attributes="member: 100601"><p>I have a 300 sherman 30" 1:9 but with the powder shortage load development is impossible so I am building a 30 Sherman Magnum. I picked up 8lbs of N570 and 200 Berger 245 EOL yesterday. Plan to order some 205gr badland SBD2 and possibly hammer bullets.</p><p></p><p>Question is get 30" barrel with 1:7 or 1:8 twist??</p><p>Also, Will 1:7 be an issue with bullets like 208 eldm or 215 bergers?</p><p></p><p>Thoughts or suggestions?</p><p></p><p>My elevation is sea level.</p></blockquote><p></p>
[QUOTE="huntinherrrington, post: 2129773, member: 100601"] I have a 300 sherman 30” 1:9 but with the powder shortage load development is impossible so I am building a 30 Sherman Magnum. I picked up 8lbs of N570 and 200 Berger 245 EOL yesterday. Plan to order some 205gr badland SBD2 and possibly hammer bullets. Question is get 30” barrel with 1:7 or 1:8 twist?? Also, Will 1:7 be an issue with bullets like 208 eldm or 215 bergers? Thoughts or suggestions? My elevation is sea level. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
30 SM Build Barrel Twist??
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