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Thread: Quickload Help needed

  1. #1

    Quickload Help needed

    Hope someone with Quickload can help. I have just had my Mannlicher 0.243 threaded for an Atec Maxim sound moderator, originaly it had a 20" barrel but the gunsmith has shortened the barrel to 18" to miss the front sight retaining pins which was never mentioned at the time!! I occasionally use this rifle for hind stalking with 100gn bullets {Iam in Scotland so require min 1,750ft/lb and 2,450fps} and am now worried I cannot meet the energy minimum. I would be gratefull if someone with Quickload could point me in the direction of a suitable bullet and powder combination that looks like it would do the job. [I reload]

  2. #2
    if no one gets back to you by tomorrow drop me a PM and I will run some data when I get home Thursday evening

  3. #3
    I don't load .243 but I ran the most common powders through QL and the only one that looked ok was Reloader 17 with 100grn Hornady 2450.

    If there is a powder and bullet you like just post them and I'll run it through again.


    You normally expect to loose 25fps for each inch you chop off the barrel, but it's not a precise science, and fitting a mod changes the figures as well.
    Best to run it over a chrono if you can.

    HTH.

    Cartridge : .243 Win.
    Bullet : .243, 100, Hornady SP 2450
    Useable Case Capaci: 49.353 grain H2O = 3.204 cm³
    Cartridge O.A.L. L6: 2.710 inch = 68.83 mm
    Barrel Length : 18.0 inch = 457.2 mm
    Powder : Alliant Reloder-17
    Predicted data by increasing and decreasing the given charge,
    incremented in steps of 2.0% of nominal charge.
    CAUTION: Figures exceed maximum and minimum recommended loads !
    Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
    % % Grains fps ft.lbs psi psi % ms
    -20.0 70 33.20 2292 1166 32070 11909 93.5 1.299
    -18.0 71 34.03 2346 1222 34099 12272 94.7 1.269
    -16.0 73 34.86 2400 1279 36252 12619 95.7 1.241
    -14.0 75 35.69 2455 1338 38530 12950 96.6 1.206
    -12.0 77 36.52 2509 1398 40943 13263 97.4 1.171
    -10.0 78 37.35 2563 1458 43501 13555 98.2 1.138
    -08.0 80 38.18 2616 1520 46211 13827 98.7 1.106
    -06.0 82 39.01 2670 1582 49083 14076 99.2 1.075
    -04.0 83 39.84 2722 1646 52131 14301 99.6 1.045 ! Near Maximum !
    -02.0 85 40.67 2775 1710 55363 14501 99.8 1.016 ! Near Maximum !
    +00.0 87 41.50 2827 1774 58793 14674 100.0 0.988 ! Near Maximum !
    +02.0 89 42.33 2878 1840 62432 14823 100.0 0.962 !DANGEROUS LOAD-DO NOT USE!
    +04.0 90 43.16 2929 1905 66294 14963 100.0 0.936 !DANGEROUS LOAD-DO NOT USE!
    +06.0 92 43.99 2980 1971 70364 15099 100.0 0.911 !DANGEROUS LOAD-DO NOT USE!
    +08.0 94 44.82 3029 2038 74674 15232 100.0 0.887 !DANGEROUS LOAD-DO NOT USE!
    +10.0 96 45.65 3079 2105 79244 15362 100.0 0.864 !DANGEROUS LOAD-DO NOT USE!

  4. #4
    Thanks Cooter. Hornady 2450 is the bullet I use with N160 but have H4895 on shelf. Reloader 17 looks close at near max load, nthor has kindly offered to run some alternative powders with N550 looking close. Getting powder at the moment is still a problem up here but once I do some trials a friend has a chrono I can borrow.

  5. #5
    Checking all the powders it is going to be tight. It's a fairly big file but I can send it to you if you like.

    Reloader 17 was the only one that appeared to give you some room.

    Below is N160 and H4895.

    N160 gets you close, but it is at the max load.


    Cartridge : .243 Win.
    Bullet : .243, 100, Hornady SP 2450
    Useable Case Capaci: 49.356 grain H2O = 3.205 cm³
    Cartridge O.A.L. L6: 2.710 inch = 68.83 mm
    Barrel Length : 18.0 inch = 457.2 mm
    Powder : Vihtavuori N160
    Predicted data by increasing and decreasing the given charge,
    incremented in steps of 2.0% of nominal charge.
    CAUTION: Figures exceed maximum and minimum recommended loads !
    Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
    % % Grains fps ft.lbs psi psi % ms
    -20.0 80 34.90 2096 975 27750 10207 80.5 1.402
    -18.0 82 35.77 2149 1025 29546 10594 82.0 1.367
    -16.0 84 36.64 2202 1077 31458 10979 83.5 1.333
    -14.0 86 37.51 2256 1130 33494 11361 84.9 1.299
    -12.0 88 38.39 2311 1185 35660 11737 86.3 1.266
    -10.0 90 39.26 2365 1242 37969 12108 87.6 1.231
    -08.0 92 40.13 2420 1300 40410 12471 88.9 1.195
    -06.0 94 41.00 2475 1360 42985 12826 90.1 1.160
    -04.0 96 41.88 2531 1422 45722 13171 91.3 1.126
    -02.0 98 42.75 2586 1485 48634 13505 92.4 1.093
    +00.0 100 43.62 2642 1550 51736 13826 93.4 1.061 ! Near Maximum !
    +02.0 102 44.49 2698 1616 55041 14134 94.4 1.030 ! Near Maximum !
    +04.0 104 45.36 2754 1684 58565 14426 95.3 1.001 ! Near Maximum !
    +06.0 106 46.24 2810 1754 62325 14702 96.2 0.972 !DANGEROUS LOAD-DO NOT USE!
    +08.0 108 47.11 2866 1824 66339 14960 96.9 0.944 !DANGEROUS LOAD-DO NOT USE!
    +10.0 110 47.98 2923 1897 70630 15199 97.6 0.917 !DANGEROUS LOAD-DO NOT USE!
    Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
    Data for burning rate increased by 10% relative to nominal value:
    +Ba 100 43.62 2787 1725 60998 14219 98.3 0.982 !DANGEROUS LOAD-DO NOT USE!
    Data for burning rate decreased by 10% relative to nominal value:
    -Ba 100 43.62 2463 1348 42669 12863 85.3 1.161



    Cartridge : .243 Win.
    Bullet : .243, 100, Hornady SP 2450
    Useable Case Capaci: 49.356 grain H2O = 3.205 cm³
    Cartridge O.A.L. L6: 2.710 inch = 68.83 mm
    Barrel Length : 18.0 inch = 457.2 mm
    Powder : Hodgdon H4895
    Predicted data by increasing and decreasing the given charge,
    incremented in steps of 2.0% of nominal charge.
    CAUTION: Figures exceed maximum and minimum recommended loads !
    Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
    % % Grains fps ft.lbs psi psi % ms
    -20.0 64 29.12 2225 1100 31601 11045 94.8 1.338
    -18.0 66 29.85 2275 1149 33427 11354 95.6 1.310
    -16.0 67 30.58 2324 1199 35340 11652 96.5 1.283
    -14.0 69 31.30 2372 1250 37343 11938 97.2 1.253
    -12.0 70 32.03 2421 1301 39440 12212 97.8 1.220
    -10.0 72 32.76 2469 1353 41634 12472 98.4 1.187
    -08.0 74 33.49 2516 1406 43930 12718 98.9 1.156
    -06.0 75 34.22 2564 1459 46333 12949 99.3 1.126
    -04.0 77 34.94 2610 1513 48845 13164 99.6 1.098
    -02.0 78 35.67 2657 1567 51474 13362 99.8 1.070 ! Near Maximum !
    +00.0 80 36.40 2702 1621 54223 13544 99.9 1.044 ! Near Maximum !
    +02.0 82 37.13 2748 1676 57099 13707 100.0 1.018 ! Near Maximum !
    +04.0 83 37.86 2792 1731 60107 13858 100.0 0.994 !DANGEROUS LOAD-DO NOT USE!
    +06.0 85 38.58 2836 1786 63254 14005 100.0 0.970 !DANGEROUS LOAD-DO NOT USE!
    +08.0 86 39.31 2880 1842 66548 14150 100.0 0.947 !DANGEROUS LOAD-DO NOT USE!
    +10.0 88 40.04 2923 1897 69994 14293 100.0 0.925 !DANGEROUS LOAD-DO NOT USE!
    Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
    Data for burning rate increased by 10% relative to nominal value:
    +Ba 80 36.40 2797 1737 62519 13171 100.0 0.974 !DANGEROUS LOAD-DO NOT USE!
    Data for burning rate decreased by 10% relative to nominal value:
    -Ba 80 36.40 2566 1462 45799 13522 97.0 1.135

  6. #6
    PM sent with various powder options

  7. #7
    Thanks for your help, will be trying the N550 first it looks very promising. In theory it looks a lot better than I thought possible, seeing how the rifle reacts is next, not sure if the Mod will boost figures in anyway.

  8. #8
    Quote Originally Posted by 65SWED View Post
    Thanks for your help, will be trying the N550 first it looks very promising. In theory it looks a lot better than I thought possible, seeing how the rifle reacts is next, not sure if the Mod will boost figures in anyway.
    Other than reducing the sound report of the rifle and possibly the recoil slightly the moderator will have no influence whatsoever.
    It's the calibre of the shooter that counts not the calibre of the rifle.

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