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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Which caliber 257 or 264 ?
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<blockquote data-quote="Buffalobob" data-source="post: 335221" data-attributes="member: 8"><p>The case capacity of the two rounds is very similar and you will get similar results with them.</p><p></p><p>Couple of things to think about.</p><p></p><p>The 257 suffers from a lack of any high BC bullets from the major bullet suppliers. The 264 has two great choices of either the heavy Bergers or Sierra MKs. You can contact Paul at Wildcat bullets and see when he will be producing the 130 & 142 gr HP RBBT bullets in 257. This will turn the rifle into a fine long range elk rifle equal to the 264. You will most likely need a 1-8 twist barrel to do a good job of stabilizing the bullets. You should think about a 28 inch barrel and slow burning powders. It might be interesting to try a gain twist barrel</p><p></p><p>Things get tricky when you start to specify the reamer and chamber on a Wby. If you eliminate the freebore then it will not be able to use factory ammo. The path I normally trod is minimum SAAMI chamber with a target leade. I can get a bullet to jam in the leade. There is nothing wrong with freebore if you are willing to live with the fact that the rifle may prefer a bullet that is not really a long range bullet.</p><p></p><p>If you decide to build a 257 based upon shooting the Wildcat bullets you should buy enough before you order the barrel to burn out the barrel. You run risks either way, but if the rifle does not like the bullets you can resell them. If you build the rifle first and have no bullet, then you are at the mercy of the single supplier of them and his continued well being.</p></blockquote><p></p>
[QUOTE="Buffalobob, post: 335221, member: 8"] The case capacity of the two rounds is very similar and you will get similar results with them. Couple of things to think about. The 257 suffers from a lack of any high BC bullets from the major bullet suppliers. The 264 has two great choices of either the heavy Bergers or Sierra MKs. You can contact Paul at Wildcat bullets and see when he will be producing the 130 & 142 gr HP RBBT bullets in 257. This will turn the rifle into a fine long range elk rifle equal to the 264. You will most likely need a 1-8 twist barrel to do a good job of stabilizing the bullets. You should think about a 28 inch barrel and slow burning powders. It might be interesting to try a gain twist barrel Things get tricky when you start to specify the reamer and chamber on a Wby. If you eliminate the freebore then it will not be able to use factory ammo. The path I normally trod is minimum SAAMI chamber with a target leade. I can get a bullet to jam in the leade. There is nothing wrong with freebore if you are willing to live with the fact that the rifle may prefer a bullet that is not really a long range bullet. If you decide to build a 257 based upon shooting the Wildcat bullets you should buy enough before you order the barrel to burn out the barrel. You run risks either way, but if the rifle does not like the bullets you can resell them. If you build the rifle first and have no bullet, then you are at the mercy of the single supplier of them and his continued well being. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Which caliber 257 or 264 ?
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