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460 wby "ok for Elk"???
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<blockquote data-quote="specweldtom" data-source="post: 360131" data-attributes="member: 2580"><p>I don't know if the Leverevolution 325gr bullets would stay together at 3000+ fps. I did blow up some 405gr Speer jacketed flat nose bullets. They were for 45-70's though. I didn't get velocity on any of them, just -error-, because the chronograph couldn't read pieces I guess. I was surprised they didn't take out my skyscreens. Nothing printed at 100 yds, not even shrapnel.</p><p></p><p>I just ran some numbers on Barnes X bullets that I had info on. I think they make .458 Triple Shocks now that are better bullets than the X's. I always had to molycoat the X's to stop them from severely copper fouling the bore.</p><p></p><p>All calculations are at 25' above sea level, 29.5 barometer, 90% relative humidity, 70 deg F, and no wind. At higher (Elk) elevations and lower relative humidity, the performance would improve significantly. The numbers listed are not carved in stone, but are reasonably close. </p><p></p><p>A 350gr Barnes XFB (with G1 b/c of .402) at 2950 fps at the muzzle will be at 1200 fps (still supersonic) and 1000 ft/lbs of energy at 1000 yds. It will retain Elk killing energy (2000 ft/lbs) at 680 yds. at 1600 fps.</p><p></p><p>A 400gr Barnes XFB (G1 b/c .457) at 2750 fps M/V will be at 1250fps at 1000 yds and 1300 ft/lbs of energy. It will still have 2000 ft/lbs energy at 700 yds and 1450 fps.</p><p></p><p>A 500gr Barnes XFB (G1 b/c .526) at 2600 fps M/V will be at 1250 fps at 1000 yds, and 1800 ft/lbs. It will still have 2000 ft/lbs at 920 yds and 1275 fps.</p><p></p><p>From this data, the 350gr bullet would be a good all around choice from the standpoint of performance and minimal discomfort. All should still be accurate at 1000 yds, and the 500gr would extend Elk killing range to a practical 1000 yds alsol </p><p></p><p>I didn't calculate bullet path for any of them, but if I did, I would work from a 200yd zero (for a probable 300 yd point blank range}, and shoot at 300. 600, and 1000 yds if possible, to find out what the bullet is really doing. Exterior ballistics is just a good starting place.</p><p></p><p>-Begin edit- I ran bullet paths for all three bullets with a 200 yd zero. I didn't believe the results and ran them again.</p><p>The350gr and the 500gr are both down 360" at 1000 yds. The 400gr is down 355". The parabolas are slightly different, with the 350gr being flatter at first and then dropping off faster. No surprise. The essentially identical drop at 1K was a big surprise though. Pretty much confirms that the 350gr would be the all-around choice. Big enough to kill anything in our hemisphere, slightly flatter shooting out to about 600 yds, over 2000 ft/lbs retained energy at that range, and very mild recoil to boot. Sounds like Elk poison to me. Or Bear, or Moose, or a Toyota. </p><p></p><p>I used the G1 B/C formula because it was what Barnes was using, I'm used to it, and I think it works O.K. with flat base bullets. Remember that these numbers are not exact, but are good enough for comparing bullet performance. -End of edit-</p><p></p><p>A couple of reminders: long eye relief scope, and a solid backstop. These big bullets are going to pass through **** near any game animal and still be hard to stop. Dirt is good. Many years ago, I dug 2 factory Hornady round nose "solids" out of the berm at the local range. They were about 4 feet into it. I did my best to repair the berm, but the club newsletter reported that a "large burrowing animal had damaged the 100 yd berm on the big range".........</p><p></p><p>Good luck whatever you decide. Let us know. Tom</p></blockquote><p></p>
[QUOTE="specweldtom, post: 360131, member: 2580"] I don't know if the Leverevolution 325gr bullets would stay together at 3000+ fps. I did blow up some 405gr Speer jacketed flat nose bullets. They were for 45-70's though. I didn't get velocity on any of them, just -error-, because the chronograph couldn't read pieces I guess. I was surprised they didn't take out my skyscreens. Nothing printed at 100 yds, not even shrapnel. I just ran some numbers on Barnes X bullets that I had info on. I think they make .458 Triple Shocks now that are better bullets than the X's. I always had to molycoat the X's to stop them from severely copper fouling the bore. All calculations are at 25' above sea level, 29.5 barometer, 90% relative humidity, 70 deg F, and no wind. At higher (Elk) elevations and lower relative humidity, the performance would improve significantly. The numbers listed are not carved in stone, but are reasonably close. A 350gr Barnes XFB (with G1 b/c of .402) at 2950 fps at the muzzle will be at 1200 fps (still supersonic) and 1000 ft/lbs of energy at 1000 yds. It will retain Elk killing energy (2000 ft/lbs) at 680 yds. at 1600 fps. A 400gr Barnes XFB (G1 b/c .457) at 2750 fps M/V will be at 1250fps at 1000 yds and 1300 ft/lbs of energy. It will still have 2000 ft/lbs energy at 700 yds and 1450 fps. A 500gr Barnes XFB (G1 b/c .526) at 2600 fps M/V will be at 1250 fps at 1000 yds, and 1800 ft/lbs. It will still have 2000 ft/lbs at 920 yds and 1275 fps. From this data, the 350gr bullet would be a good all around choice from the standpoint of performance and minimal discomfort. All should still be accurate at 1000 yds, and the 500gr would extend Elk killing range to a practical 1000 yds alsol I didn't calculate bullet path for any of them, but if I did, I would work from a 200yd zero (for a probable 300 yd point blank range}, and shoot at 300. 600, and 1000 yds if possible, to find out what the bullet is really doing. Exterior ballistics is just a good starting place. -Begin edit- I ran bullet paths for all three bullets with a 200 yd zero. I didn't believe the results and ran them again. The350gr and the 500gr are both down 360" at 1000 yds. The 400gr is down 355". The parabolas are slightly different, with the 350gr being flatter at first and then dropping off faster. No surprise. The essentially identical drop at 1K was a big surprise though. Pretty much confirms that the 350gr would be the all-around choice. Big enough to kill anything in our hemisphere, slightly flatter shooting out to about 600 yds, over 2000 ft/lbs retained energy at that range, and very mild recoil to boot. Sounds like Elk poison to me. Or Bear, or Moose, or a Toyota. I used the G1 B/C formula because it was what Barnes was using, I'm used to it, and I think it works O.K. with flat base bullets. Remember that these numbers are not exact, but are good enough for comparing bullet performance. -End of edit- A couple of reminders: long eye relief scope, and a solid backstop. These big bullets are going to pass through **** near any game animal and still be hard to stop. Dirt is good. Many years ago, I dug 2 factory Hornady round nose "solids" out of the berm at the local range. They were about 4 feet into it. I did my best to repair the berm, but the club newsletter reported that a "large burrowing animal had damaged the 100 yd berm on the big range"......... Good luck whatever you decide. Let us know. Tom [/QUOTE]
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