Downrange energy

Discussion in 'The Basics, Starting Out' started by OldCane, Dec 15, 2004.

  1. OldCane

    OldCane Member

    Messages:
    5
    Joined:
    Dec 15, 2004
    Guys, I have to ask, what calibers are you using for 2000 yard elk hunting? The charts I have only go to 500yds max. My max is 300 yards on a no wind day so this is more out of curiousity than anything else.
     
  2. Dave King

    Dave King Well-Known Member

    Messages:
    2,362
    Joined:
    May 3, 2001

  3. OldCane

    OldCane Member

    Messages:
    5
    Joined:
    Dec 15, 2004
    thanks
     
  4. OldCane

    OldCane Member

    Messages:
    5
    Joined:
    Dec 15, 2004
    I finally found a chart that goes that far or rather a calculator and I was looking at the 338RUM. It drops below 1500fpe at 650yds. I always thought 1500fpe was the minimum for elk. Like I said, just curious. 650yds is a long way for me. I can't do it. My dad could, though.
     
  5. Dave King

    Dave King Well-Known Member

    Messages:
    2,362
    Joined:
    May 3, 2001
    For Ultra Long Range folks will be using the 300 Sierra MatchKing.

    Heres some data for a 338RUM at 2900fps with a Sierra 300 MK...

    Sea level, temp 59

    <font class="small">Code:</font><hr /><pre>
    Yards Speed Energy
    1000 1851 2282
    1050 1806 2172
    1100 1762 2067
    1150 1719 1968
    1200 1676 1870
    1250 1634 1778
    1300 1593 1690
    1350 1553 1606
    1400 1514 1526
    1450 1475 1449
    1500 1438 1377
    1550 1403 1311
    1600 1368 1246
    1650 1335 1187
    1700 1304 1132
    1750 1273 1079
    1800 1243 1029
    1850 1216 984
    1900 1189 941
    1950 1165 904
    2000 1142 868

    </pre><hr />


    Heres the data for 6000' Above Sea Level (ASL) at 40 Degrees

    <font class="small">Code:</font><hr /><pre>
    Yards Speed Energy
    1000 2009 2688
    1050 1969 2582
    1100 1930 2481
    1150 1891 2381
    1200 1853 2287
    1250 1815 2194
    1300 1778 2105
    1350 1742 2021
    1400 1706 1938
    1450 1671 1859
    1500 1636 1782
    1550 1602 1709
    1600 1568 1637
    1650 1535 1569
    1700 1502 1502
    1750 1470 1439
    1800 1440 1381
    1850 1410 1324
    1900 1382 1272
    1950 1354 1221
    2000 1327 1172

    </pre><hr />

    Here's what the big wildcats would be like... muzzle speed of about 3100fps. 6000' ASL, 40 degrees

    <font class="small">Code:</font><hr /><pre>

    Yards Speed Energy
    1000 2171 3139
    1050 2129 3019
    1100 2088 2903
    1150 2047 2790
    1200 2007 2682
    1250 1967 2577
    1300 1928 2475
    1350 1889 2376
    1400 1851 2282
    1450 1813 2189
    1500 1776 2100
    1550 1740 2016
    1600 1704 1934
    1650 1669 1855
    1700 1635 1780
    1750 1600 1705
    1800 1567 1635
    1850 1534 1567
    1900 1501 1500
    1950 1469 1437
    2000 1439 1379


    </pre><hr />
     
  6. OldCane

    OldCane Member

    Messages:
    5
    Joined:
    Dec 15, 2004
    Ok, mine is way different. A 250g swift at 2860 (factory Rem) is 789fpe at 1000 yards. With the MK 300g (BC of .587) at 2900 is still only 1600fpe at 1000 yards. Anyway, thanks for the info. Like I said, I'll never be concerned myself. I just started hearing about this ultra long range elk hunting and thought I'd see what was being used. I'd hate to be on either end of a rifle that has 1500fpe at 2000 yards.
     
  7. Dave King

    Dave King Well-Known Member

    Messages:
    2,362
    Joined:
    May 3, 2001
    The published BC on the Swift A-Frame is .427.

    Here's 2860fps at sea-level 59 degrees with the Swift A-Frame.

    <font class="small">Code:</font><hr /><pre>

    Yards Speed Energy
    0 2860 4540
    50 2751 4200
    100 2644 3880
    150 2541 3583
    200 2439 3301
    250 2340 3039
    300 2243 2792
    350 2149 2563
    400 2056 2346
    450 1966 2145
    500 1878 1957
    550 1793 1784
    600 1712 1626
    650 1633 1480
    700 1557 1345
    750 1483 1220
    800 1415 1111
    850 1351 1013
    900 1291 925
    950 1235 846
    1000 1186 780
    1050 1141 722
    1100 1102 674
    1150 1068 633
    1200 1038 598
    1250 1012 568
    1300 988 541
    1350 966 517
    1400 946 496
    1450 927 476
    1500 909 458
    1550 893 442
    1600 877 426
    1650 862 412
    1700 847 398
    1750 833 385
    1800 819 372
    1850 806 360
    1900 794 349
    1950 781 338
    2000 769 328

    </pre><hr />

    The published BC on a Sierra MatchKing 300 is .768 not .587

    Here's sea-level at 2900 fps 59 degrees

    <font class="small">Code:</font><hr /><pre>

    Yards Speed Energy
    0 2900 5601
    50 2838 5364
    100 2777 5136
    150 2718 4920
    200 2659 4709
    250 2601 4506
    300 2543 4307
    350 2486 4116
    400 2430 3933
    450 2375 3757
    500 2320 3585
    550 2267 3423
    600 2213 3262
    650 2161 3110
    700 2109 2962
    750 2058 2821
    800 2008 2685
    850 1958 2553
    900 1909 2427
    950 1860 2304
    1000 1813 2189
    1050 1767 2079
    1100 1722 1975
    1150 1678 1875
    1200 1634 1778
    1250 1592 1688
    1300 1550 1600
    1350 1509 1516
    1400 1468 1435
    1450 1431 1363
    1500 1394 1294
    1550 1359 1230
    1600 1325 1169
    1650 1292 1111
    1700 1260 1057
    1750 1229 1006
    1800 1202 962
    1850 1176 921
    1900 1151 882
    1950 1128 847
    2000 1107 816

    </pre><hr />


    The real BC for the SMK 338 300 is closer to .800 so the earlier numbers reflect the better BC.
     
  8. OldCane

    OldCane Member

    Messages:
    5
    Joined:
    Dec 15, 2004
    Yeah, I see I must have been looking at the 250g's BC. Wow. It's impressive either way. Maybe one of these days I will have the time, money, help and opportunity to try my hand at it.
     
  9. sniper2

    sniper2 Well-Known Member

    Messages:
    948
    Joined:
    Jan 10, 2003
    Old Crane you too can shoot down range you just need the right equipment and a lot of practical practice, don't cut yourself short a positive attitude will go a long way.Best of luck in your endeavors!!
     
  10. ewallace

    ewallace Well-Known Member

    Messages:
    991
    Joined:
    Mar 17, 2002
    Most of us are using large cased 338 with 300g SMK bullets. I am shooting an IMP 338 Lapua. I have been considering a 338/408. I have a light gun #17 with a 30" barrel and a HG # 60 with a 32" barrel that will shoot the 300g bullets at 3050 FPS and has over 1560 FPE at 2000 yards we hunt at 10000 feet. We took a mule deer with the LG this year at 2031 yards. A friend of mine shoots a 338/416 IMP with a 45" barrel and is getting 3350 fps out of his gun it is over 100 pounds at 2000 yards he has around 1983 FPE. /ubbthreads/images/graemlins/shocked.gif
    Crow Mag