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Joined: Dec 2012
Posts: 28
Campfire Greenhorn
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OP
Campfire Greenhorn
Joined: Dec 2012
Posts: 28 |
Not sure if this is the correct place to ask but looking to see if anyone can run a quickload data for me? 7mm mag, 150 hornady eld-x (or nosler e tip 150), IMR 7828, cci250 primers, Winchester brass, 3.300 coal, 26” barrel. Just trying to see where the burn times end up at. Any help would be greatly appreciated. Thanks
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Joined: Jan 2010
Posts: 13,237 Likes: 4
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2010
Posts: 13,237 Likes: 4 |
You’ll be well served on the reloading forum.
P
Obey lawful commands. Video interactions. Hold bad cops accountable. Problem solved.
~Molɔ̀ːn Labé Skýla~
Member #547
Join date 3/09/2001
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Joined: Dec 2012
Posts: 28
Campfire Greenhorn
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OP
Campfire Greenhorn
Joined: Dec 2012
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Joined: Jun 2004
Posts: 34,349 Likes: 10
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2004
Posts: 34,349 Likes: 10 |
[/code]7Mag brass/case capacity is all over the place.
It's best to take actual case capacity in grains of H20.
Take a fired unsized case or two, weigh them and record. Add water to the top of the neck. Weigh again and subtract.
In the meantime.
[code] Cartridge : 7 mm Rem. Mag.(SAAMI)
Bullet : .284, 150, Nosler BalTip 39586
Cartridge O.A.L. L6: 3.300 inch or 83.82 mm
Barrel Length : 26.0 inch or 660.4 mm
Powder : IMR 7828
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 52.96 2442 1986 28060 9389 87.3 1.683
-18.0 82 54.28 2505 2090 29912 9722 88.8 1.642
-16.0 84 55.61 2568 2196 31890 10047 90.2 1.602
-14.0 86 56.93 2632 2306 34000 10361 91.5 1.563
-12.0 88 58.26 2695 2420 36254 10663 92.8 1.524
-10.0 90 59.58 2759 2536 38663 10953 93.9 1.479
-08.0 92 60.90 2823 2655 41237 11227 95.0 1.434
-06.0 94 62.23 2887 2777 43992 11486 96.0 1.391
-04.0 96 63.55 2951 2901 46941 11727 96.8 1.349
-02.0 98 64.88 3015 3029 50101 11949 97.6 1.309
+00.0 100 66.20 3079 3158 53489 12151 98.3 1.270 ! Near Maximum !
+02.0 102 67.52 3143 3290 57128 12332 98.8 1.233 ! Near Maximum !
+04.0 104 68.85 3206 3424 61037 12490 99.3 1.196 !DANGEROUS LOAD-DO NOT USE!
+06.0 106 70.17 3269 3560 65241 12625 99.6 1.161 !DANGEROUS LOAD-DO NOT USE!
+08.0 108 71.50 3332 3698 69771 12734 99.9 1.127 !DANGEROUS LOAD-DO NOT USE!
+10.0 110 72.82 3395 3838 74653 12818 100.0 1.094 !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 66.20 3236 3488 65058 11862 100.0 1.170 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 66.20 2867 2737 43370 11693 91.6 1.398
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