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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What is it with the 270 wsm
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<blockquote data-quote="MagnumManiac" data-source="post: 2319884" data-attributes="member: 10755"><p>I have 2 270 Weatherby barrels for 1 rifle. The first is a 10" twist 26" and the newer barrel is a 9" twist 28".</p><p>Both are extremely accurate, around 3/8MoA. I run the 150g ABLR in both and get 3300fps in the 26" and 3390fps in the 28". It started life as a 30" but I had to lop 2" off before I got it cryo'd.</p><p>My buddy uses a 270 WSM and his rifles mimics mine, albeit over 100fps slower. His will shoot the 150 ABLR into 1/2MoA.</p><p>We both hunt Sambar deer, which are about the size of a cow Elk.</p><p>I built a 270 Win for my Dad on a tang safety Ruger 77. He wanted traditional looks, so it has a 22" barrel and 10" twist….not what I would have had, but it's what he wanted.</p><p>It shoots half inch groups too, in fact most 270's shoot very well in my experience.</p><p>It's still a mystery why Winchester chose the .277" bullet diameter, as it certainly wasn't a common size even back in 1925.</p><p>It worked out very well for them though.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 2319884, member: 10755"] I have 2 270 Weatherby barrels for 1 rifle. The first is a 10” twist 26” and the newer barrel is a 9” twist 28”. Both are extremely accurate, around 3/8MoA. I run the 150g ABLR in both and get 3300fps in the 26” and 3390fps in the 28”. It started life as a 30” but I had to lop 2” off before I got it cryo’d. My buddy uses a 270 WSM and his rifles mimics mine, albeit over 100fps slower. His will shoot the 150 ABLR into 1/2MoA. We both hunt Sambar deer, which are about the size of a cow Elk. I built a 270 Win for my Dad on a tang safety Ruger 77. He wanted traditional looks, so it has a 22” barrel and 10” twist….not what I would have had, but it’s what he wanted. It shoots half inch groups too, in fact most 270’s shoot very well in my experience. It’s still a mystery why Winchester chose the .277” bullet diameter, as it certainly wasn’t a common size even back in 1925. It worked out very well for them though. Cheers. [/QUOTE]
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What is it with the 270 wsm
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