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Long Range Hunting & Shooting
What other calibers can be built on a 270 win action?
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<blockquote data-quote="codyadams" data-source="post: 1597953" data-attributes="member: 87243"><p>I agree there isnt much difference between the two all being equal. The difference in velocity that I have generally seen with barrel length is around 20-30 fps per inch, so I would say the difference between the two you listed would be 40-60 fps or so. If you AI the .270, it puts them pretty close. The .280 will still be 50-100 fps faster with a given bullet simply due to bore diameter, but as you said, the difference isn't huge. As far as brass, just buy .270 brass to run in a .280 AI, and there is no longer a cost difference in the two. And there are more available heavy for caliber bullets for a .284 diameter. And you can buy .280 AI ammo with heavier bullets than a .270 (though loaded ammo will be more expensive and harder to come by than .270 loaded ammo). </p><p></p><p>Don't get me wrong, not arguing at all, I personally am building a .270 Sherman to shoot the 170's, and I had the option to build everything from a 6.5 to a .338 and chose the .270 sherman. I think the easiest way to get more out of it is to just get a fast twist .270 and shoot the 150+ bullets in it. No fireforming, same dies, just change bullets. Though if he wants to go all in, the .270 Sherman will get the most.</p></blockquote><p></p>
[QUOTE="codyadams, post: 1597953, member: 87243"] I agree there isnt much difference between the two all being equal. The difference in velocity that I have generally seen with barrel length is around 20-30 fps per inch, so I would say the difference between the two you listed would be 40-60 fps or so. If you AI the .270, it puts them pretty close. The .280 will still be 50-100 fps faster with a given bullet simply due to bore diameter, but as you said, the difference isn't huge. As far as brass, just buy .270 brass to run in a .280 AI, and there is no longer a cost difference in the two. And there are more available heavy for caliber bullets for a .284 diameter. And you can buy .280 AI ammo with heavier bullets than a .270 (though loaded ammo will be more expensive and harder to come by than .270 loaded ammo). Don't get me wrong, not arguing at all, I personally am building a .270 Sherman to shoot the 170's, and I had the option to build everything from a 6.5 to a .338 and chose the .270 sherman. I think the easiest way to get more out of it is to just get a fast twist .270 and shoot the 150+ bullets in it. No fireforming, same dies, just change bullets. Though if he wants to go all in, the .270 Sherman will get the most. [/QUOTE]
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What other calibers can be built on a 270 win action?
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