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Best Caliber Rifle Elk
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<blockquote data-quote="wyrshunter1" data-source="post: 2503754" data-attributes="member: 122173"><p>There is a strong case for the . 257 Weatherby or 25-06 AI in a slow twist. (don't laugh yet)</p><p></p><p> I think the .300 Win Mag is fine choice and I used a 150 nosler ballistic maxed out on surplus H4831 in a .300 Weatherby for my nicest bull. </p><p></p><p>However, all of my other elk were with the old .270 130s running 60 grains of my grandpas old surplus H4831, and my family has a quarter bore tradition dating back to my Grandpa saving for his custom 25-06 Ackley in the 50s they have taken 40-50 elk and moose with 25-06 AI wildcats and Remington 700 ADL 25-06s in addition to hundreds of big muleys.</p><p></p><p>I have a 26 inch Macgowan barrel ordered to mount to a Savage action in a 25-06 AI with a 1:7 twist, and I am going to make the hypothesis that based on the studying I've done the .257 Weatherby and its poor man cousin I have coming in the 25-06 Ackley, that either is at least an equal elk option to the .300 Win.</p><p></p><p>Prove me wrong. Lets just go off the weaker of the 2 ballistically with the 25-06 AI for comparison.</p><p></p><p>I have two boxes of Berger Extreme Hunters in the new .25 133 grain pill waiting for me when my barrel comes in. Everything I can see indicates that I should be able to doctor a load to 3200 fps with the AI chamber and the 26 inch barrel</p><p></p><p>Lets compare that to the .300 Win Mag sighted in at 200 yards with Hornady Superperformance `180 SSTs.</p><p></p><p>300 Win Mag Muzzle 3150 fps 3966 FPE</p><p> 300 yds 2475 fps 2627 FPE 5.9 drop</p><p> 500 yds 2212 fps 1956 FPE 34.3 drop</p><p> 700 yds 1890 FPS 1427 FPE 91.4 drop</p><p></p><p>25-06 Ackley Muzzle 3200 fps FPE 3024</p><p> 300 2749 fps FPE 2232 5.3 drop</p><p> 500 2469 fps FPE 1800 30.2</p><p> 700 2204 fps FPE 1435 78 drop</p><p></p><p>Remember this the AI. You should be able to push the .257 Weatherby another 100-150 fps with a good load up.</p><p></p><p>The .300 WIN loses that magic arbitrary 1500 FPE between 650 and 675 yards., the same as the puny 25-06 AI. At 700 yards and beyond the 25-06 AI beats it. Real world Energy before that point is virtually inconsequential between the 2.</p><p></p><p>So a slow twist 133 in 25-06 AI or .257 weatherby has half the kick, shoots flatter, and is probably a bit lighter with similar energy at midrange to long distances. And its not comparing reloads to factory as there is no company publishing data much faster than the hornady superperformance in the 300.</p><p></p><p>There is absolutely no evidence that bore size alone makes it better and the science would argue for the sectional density of the 25 all other things being equal.</p><p></p><p>The most important part may be accuracy and shootability given how close the 2 cartridges compare ballistically and its hard to argue against the milder loads with all but the best non-flinchers among us.</p><p></p><p>So what about availability. 25-06 AI is a simple neck down of a .270 or 30-06 fireformed after the fact. You can get .257 Weatherby brass by a simple 7mm Mag neckdown with possibly a bit of fire form.</p><p></p><p>133 bergers seem readily available on the internet. I got two boxes easily anyway. As long as you have some primers and some Retumbo, H4831 SC, or H1000 you are golden at 1/3 the price of buying Hornady Superperformance and they ain't easy to find right now in that recipe either. </p><p></p><p>I think the quarter bores may as close to the perfect all around hunter out there with a slow twist and the new bullets, but how well the numbers hold up to the .30s for elk medicine with slow twist heavy bullets, surprised even me, and would have my BAR gunning purple heart wildcatting grandpa smiling somewhere in the sky.</p></blockquote><p></p>
[QUOTE="wyrshunter1, post: 2503754, member: 122173"] There is a strong case for the . 257 Weatherby or 25-06 AI in a slow twist. (don't laugh yet) I think the .300 Win Mag is fine choice and I used a 150 nosler ballistic maxed out on surplus H4831 in a .300 Weatherby for my nicest bull. However, all of my other elk were with the old .270 130s running 60 grains of my grandpas old surplus H4831, and my family has a quarter bore tradition dating back to my Grandpa saving for his custom 25-06 Ackley in the 50s they have taken 40-50 elk and moose with 25-06 AI wildcats and Remington 700 ADL 25-06s in addition to hundreds of big muleys. I have a 26 inch Macgowan barrel ordered to mount to a Savage action in a 25-06 AI with a 1:7 twist, and I am going to make the hypothesis that based on the studying I've done the .257 Weatherby and its poor man cousin I have coming in the 25-06 Ackley, that either is at least an equal elk option to the .300 Win. Prove me wrong. Lets just go off the weaker of the 2 ballistically with the 25-06 AI for comparison. I have two boxes of Berger Extreme Hunters in the new .25 133 grain pill waiting for me when my barrel comes in. Everything I can see indicates that I should be able to doctor a load to 3200 fps with the AI chamber and the 26 inch barrel Lets compare that to the .300 Win Mag sighted in at 200 yards with Hornady Superperformance `180 SSTs. 300 Win Mag Muzzle 3150 fps 3966 FPE 300 yds 2475 fps 2627 FPE 5.9 drop 500 yds 2212 fps 1956 FPE 34.3 drop 700 yds 1890 FPS 1427 FPE 91.4 drop 25-06 Ackley Muzzle 3200 fps FPE 3024 300 2749 fps FPE 2232 5.3 drop 500 2469 fps FPE 1800 30.2 700 2204 fps FPE 1435 78 drop Remember this the AI. You should be able to push the .257 Weatherby another 100-150 fps with a good load up. The .300 WIN loses that magic arbitrary 1500 FPE between 650 and 675 yards., the same as the puny 25-06 AI. At 700 yards and beyond the 25-06 AI beats it. Real world Energy before that point is virtually inconsequential between the 2. So a slow twist 133 in 25-06 AI or .257 weatherby has half the kick, shoots flatter, and is probably a bit lighter with similar energy at midrange to long distances. And its not comparing reloads to factory as there is no company publishing data much faster than the hornady superperformance in the 300. There is absolutely no evidence that bore size alone makes it better and the science would argue for the sectional density of the 25 all other things being equal. The most important part may be accuracy and shootability given how close the 2 cartridges compare ballistically and its hard to argue against the milder loads with all but the best non-flinchers among us. So what about availability. 25-06 AI is a simple neck down of a .270 or 30-06 fireformed after the fact. You can get .257 Weatherby brass by a simple 7mm Mag neckdown with possibly a bit of fire form. 133 bergers seem readily available on the internet. I got two boxes easily anyway. As long as you have some primers and some Retumbo, H4831 SC, or H1000 you are golden at 1/3 the price of buying Hornady Superperformance and they ain't easy to find right now in that recipe either. I think the quarter bores may as close to the perfect all around hunter out there with a slow twist and the new bullets, but how well the numbers hold up to the .30s for elk medicine with slow twist heavy bullets, surprised even me, and would have my BAR gunning purple heart wildcatting grandpa smiling somewhere in the sky. [/QUOTE]
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