Quickload please

[Big guns 77]

I recently built a 6.5x280 A. I. and having a blast building loads. Using h4350, IMR 4350, h4831, and IMR 4831. I have some magpro for my 270 wsm and want to start building some loads with it and maybe some h1000. Problem is supplies are limited and getting expensive, if anyone has time for a ql for 140 gr bullet out of 26" barrel with 1-8 twist It would be much appreciated.

 

[Pacobillie]

I do not have QL, but I use Gordon’s Reloading Tool, which can be downloaded for free on the Internet. Your cartridge sounds like a 6.5-06 AI or very close to it. That would be a very good starting point.

 

[Big guns 77]

I will check out Gordon's reloading tool, thanks for that. I have been using 6.5x06 AI loads to start, my dad has 2 and alot of data for the powders he likes to shoot. Mostly the ones mentioned above. My case just holds a little more powder.

 

[Pacobillie]

I will check out Gordon's reloading tool, thanks for that. I have been using 6.5x06 AI loads to start, my dad has 2 and alot of data for the powders he likes to shoot. Mostly the ones mentioned above. My case just holds a little more powder.

On GRT, you can manually adjust case volume, to depart from standard case volume.

 

[Big guns 77]

I'm registering my account right now, thanks buddy.

 

[Big guns 77]

I could still use a QL for my 6.5x280 AI using 140 rdf and 143 eldx. If anyone has time it would be much appreciated!

 

[Big guns 77]

I have some Magpro, h4831, and Hunter powders. I'm thinking that Winchester's 6.5 staball and superformance might work really well in this cartridge.

 

[jimbires]

the 6.5x280AI is not listed in my quickload . probably why no one has posted up info for you .

 

[BruceP]

Please remember to start low and work up this is without your actual OAL. and capacity. I have had pressure signs show 3-4 rows above what calculates as max. with some of my combos.


Cartridge : 6.5-280 Ack Imp
Bullet : .264, 140, Hornady ELD-M 26331
Useable Case Capaci: 66.299 grain H2O = 4.305 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Accurate MAGPRO

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 74 48.00 2363 1736 27746 9875 86.6 1.788
-18.0 76 49.20 2424 1827 29618 10226 88.1 1.743
-16.0 78 50.40 2486 1921 31620 10569 89.4 1.700
-14.0 79 51.60 2547 2017 33763 10904 90.8 1.658
-12.0 81 52.80 2609 2116 36056 11228 92.0 1.617
-10.0 83 54.00 2671 2218 38484 11540 93.2 1.570
-08.0 85 55.20 2733 2323 41049 11839 94.3 1.522
-06.0 87 56.40 2796 2430 43777 12124 95.3 1.477
-04.0 89 57.60 2858 2539 46685 12392 96.2 1.432
-02.0 90 58.80 2920 2650 49785 12644 97.0 1.389
+00.0 92 60.00 2982 2764 53091 12877 97.7 1.348
+02.0 94 61.20 3044 2880 56619 13091 98.3 1.309 ! Near Maximum !
+04.0 96 62.40 3105 2998 60385 13283 98.9 1.270 ! Near Maximum !
+06.0 98 63.60 3167 3117 64409 13454 99.3 1.233 !DANGEROUS LOAD-DO NOT USE!
+08.0 100 64.80 3228 3239 68711 13602 99.6 1.197 !DANGEROUS LOAD-DO NOT USE!
+10.0 102 66.00 3288 3362 73315 13725 99.8 1.163 !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 92 60.00 3140 3065 64403 12689 100.0 1.239 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 92 60.00 2771 2387 42176 12321 90.7 1.492

Cartridge : 6.5-280 Ack Imp
Bullet : .264, 140, Hornady ELD-M 26331
Useable Case Capaci: 66.299 grain H2O = 4.305 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Hodgdon H4350 *T

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 72 43.20 2443 1856 33464 9117 95.9 1.656
-18.0 74 44.28 2496 1937 35468 9354 96.7 1.619
-16.0 76 45.36 2550 2021 37578 9580 97.4 1.579
-14.0 78 46.44 2602 2105 39797 9796 98.0 1.536
-12.0 79 47.52 2655 2190 42132 9999 98.6 1.496
-10.0 81 48.60 2706 2277 44588 10190 99.0 1.456
-08.0 83 49.68 2758 2364 47172 10368 99.4 1.417
-06.0 85 50.76 2809 2453 49890 10532 99.7 1.380
-04.0 87 51.84 2859 2542 52750 10681 99.9 1.345
-02.0 89 52.92 2909 2631 55758 10816 100.0 1.311 ! Near Maximum !
+00.0 90 54.00 2959 2722 58925 10935 100.0 1.278 ! Near Maximum !
+02.0 92 55.08 3008 2812 62259 11047 100.0 1.247 ! Near Maximum !
+04.0 94 56.16 3056 2904 65770 11156 100.0 1.216 !DANGEROUS LOAD-DO NOT USE!
+06.0 96 57.24 3104 2995 69468 11263 100.0 1.187 !DANGEROUS LOAD-DO NOT USE!
+08.0 98 58.32 3152 3088 73367 11368 100.0 1.159 !DANGEROUS LOAD-DO NOT USE!
+10.0 99 59.40 3199 3181 77478 11470 100.0 1.131 !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 90 54.00 3050 2893 68114 10590 100.0 1.200 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 90 54.00 2824 2479 49681 11080 97.9 1.381

Cartridge : 6.5-280 Ack Imp
Bullet : .264, 140, Hornady ELD-M 26331
Useable Case Capaci: 66.299 grain H2O = 4.305 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Hodgdon H4831 *T

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 78 46.40 2419 1820 31351 9461 91.1 1.696
-18.0 80 47.56 2478 1909 33417 9756 92.3 1.652
-16.0 82 48.72 2537 2000 35617 10043 93.4 1.609
-14.0 84 49.88 2595 2094 37961 10320 94.4 1.565
-12.0 86 51.04 2654 2190 40450 10585 95.4 1.518
-10.0 88 52.20 2713 2287 43074 10839 96.2 1.473
-08.0 90 53.36 2771 2387 45853 11079 97.0 1.430
-06.0 92 54.52 2829 2489 48809 11304 97.7 1.389
-04.0 94 55.68 2888 2592 51955 11515 98.3 1.349
-02.0 96 56.84 2946 2697 55303 11708 98.8 1.311 ! Near Maximum !
+00.0 98 58.00 3003 2804 58870 11885 99.2 1.274 ! Near Maximum !
+02.0 100 59.16 3061 2912 62671 12043 99.6 1.238 ! Near Maximum !
+04.0 102 60.32 3118 3022 66726 12182 99.8 1.204 !DANGEROUS LOAD-DO NOT USE!
+06.0 104 61.48 3175 3133 71055 12300 99.9 1.170 !DANGEROUS LOAD-DO NOT USE!
+08.0 105 62.64 3231 3246 75681 12398 100.0 1.138 !DANGEROUS LOAD-DO NOT USE!
+10.0 107 63.80 3287 3360 80630 12483 100.0 1.107 !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 98 58.00 3127 3039 69498 11555 100.0 1.186 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 98 58.00 2832 2493 48378 11662 94.5 1.389

 

[BruceP]

Cartridge : 6.5-280 Ack Imp
Bullet : .264, 140, Hornady ELD-M 26331
Useable Case Capaci: 66.299 grain H2O = 4.305 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Winchester 6,5 StaBall *T*C

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 68 44.80 2385 1769 30838 8514 99.6 1.705
-18.0 70 45.92 2435 1844 32773 8676 99.9 1.666
-16.0 72 47.04 2485 1920 34824 8821 100.0 1.629
-14.0 73 48.16 2534 1997 36996 8952 100.0 1.593
-12.0 75 49.28 2583 2074 39294 9080 100.0 1.547
-10.0 77 50.40 2631 2152 41709 9205 100.0 1.506
-08.0 78 51.52 2678 2230 44242 9329 100.0 1.465
-06.0 80 52.64 2725 2308 46914 9451 100.0 1.427
-04.0 82 53.76 2771 2388 49734 9570 100.0 1.390
-02.0 83 54.88 2817 2467 52712 9687 100.0 1.354
+00.0 85 56.00 2863 2548 55856 9802 100.0 1.319 ! Near Maximum !
+02.0 87 57.12 2908 2629 59176 9915 100.0 1.286 ! Near Maximum !
+04.0 89 58.24 2953 2711 62685 10025 100.0 1.254 ! Near Maximum !
+06.0 90 59.36 2997 2793 66395 10133 100.0 1.223 !DANGEROUS LOAD-DO NOT USE!
+08.0 92 60.48 3042 2876 70319 10238 100.0 1.194 !DANGEROUS LOAD-DO NOT USE!
+10.0 94 61.60 3086 2960 74472 10341 100.0 1.165 !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 85 56.00 2937 2681 65395 9564 100.0 1.239 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 85 56.00 2752 2355 46139 10147 100.0 1.428

Cartridge : 6.5-280 Ack Imp
Bullet : .264, 140, Hornady ELD-M 26331
Useable Case Capaci: 66.299 grain H2O = 4.305 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Ramshot Hunter

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 71 44.80 2487 1923 33211 9725 97.4 1.664
-18.0 73 45.92 2543 2010 35294 9963 98.0 1.627
-16.0 75 47.04 2598 2098 37494 10186 98.6 1.587
-14.0 76 48.16 2653 2188 39814 10394 99.1 1.542
-12.0 78 49.28 2707 2278 42263 10586 99.5 1.500
-10.0 80 50.40 2761 2369 44846 10761 99.8 1.458
-08.0 82 51.52 2814 2461 47571 10918 99.9 1.418
-06.0 83 52.64 2867 2554 50445 11057 100.0 1.380
-04.0 85 53.76 2918 2648 53478 11183 100.0 1.343
-02.0 87 54.88 2970 2742 56678 11307 100.0 1.308 ! Near Maximum !
+00.0 89 56.00 3021 2836 60055 11428 100.0 1.274 ! Near Maximum !
+02.0 91 57.12 3071 2931 63619 11546 100.0 1.241 ! Near Maximum !
+04.0 92 58.24 3120 3027 67384 11662 100.0 1.209 !DANGEROUS LOAD-DO NOT USE!
+06.0 94 59.36 3170 3123 71360 11776 100.0 1.179 !DANGEROUS LOAD-DO NOT USE!
+08.0 96 60.48 3219 3220 75564 11886 100.0 1.150 !DANGEROUS LOAD-DO NOT USE!
+10.0 98 61.60 3267 3318 80009 11994 100.0 1.121 !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 89 56.00 3114 3015 70512 11081 100.0 1.190 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 89 56.00 2879 2577 49555 11767 99.0 1.386

 

[Big guns 77]

That is all fantastic info, thank you. Was surprised at the 6.5 staball. Have lots of magpro, will start there. Will let you know what I come up with.

 

[Big guns 77]

Hey Bruce, the loads are coming along great! I found Max is usually a grain lower than posted and velocity is 40-60 fps faster than QL but put in the work and found some good loads.
Was wondering if you would run another for me with same parameters except with 147gr eldm's and OAL 3.405. Same powders. Appreciate the help

 

[Big guns 77]

Or anyone else with quick load would like to give it a try, it would be much appreciated.

 

[BruceP]

Sorry a I haven't been back to this thread in awhile and just saw the request.

Cartridge : 6.5-280 Ack Imp
Bullet : .264, 147, Hornady ELD-M 26333
Useable Case Capaci: 66.527 grain H2O = 4.319 cm³
Cartridge O.A.L. L6: 3.405 inch = 86.49 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Accurate MAGPRO

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 72 47.20 2307 1738 27604 9897 87.5 1.831
-18.0 74 48.38 2366 1828 29446 10243 88.9 1.786
-16.0 76 49.56 2426 1920 31412 10581 90.2 1.742
-14.0 78 50.74 2485 2015 33513 10910 91.5 1.699
-12.0 80 51.92 2544 2113 35733 11229 92.6 1.657
-10.0 81 53.10 2604 2213 38071 11536 93.8 1.614
-08.0 83 54.28 2664 2316 40550 11830 94.8 1.565
-06.0 85 55.46 2723 2421 43187 12110 95.7 1.518
-04.0 87 56.64 2783 2528 45991 12374 96.6 1.473
-02.0 89 57.82 2843 2637 48973 12621 97.3 1.430
+00.0 91 59.00 2902 2748 52146 12850 98.0 1.388
+02.0 92 60.18 2961 2862 55524 13061 98.6 1.348 ! Near Maximum !
+04.0 94 61.36 3020 2977 59121 13251 99.1 1.309 ! Near Maximum !
+06.0 96 62.54 3078 3093 62955 13419 99.4 1.272 ! Near Maximum !
+08.0 98 63.72 3137 3212 67043 13566 99.7 1.236 !DANGEROUS LOAD-DO NOT USE!
+10.0 100 64.90 3195 3331 71405 13689 99.9 1.201 !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 91 59.00 3052 3041 63093 12621 100.0 1.276 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 91 59.00 2700 2379 41535 12339 91.3 1.536

Cartridge : 6.5-280 Ack Imp
Bullet : .264, 147, Hornady ELD-M 26333
Useable Case Capaci: 66.527 grain H2O = 4.319 cm³
Cartridge O.A.L. L6: 3.405 inch = 86.49 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Hodgdon H4350 *T

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 69 41.60 2337 1783 31569 8885 95.8 1.730
-18.0 71 42.64 2388 1861 33403 9120 96.5 1.693
-16.0 73 43.68 2438 1940 35330 9346 97.2 1.656
-14.0 75 44.72 2488 2020 37352 9562 97.9 1.618
-12.0 76 45.76 2538 2102 39475 9767 98.4 1.574
-10.0 78 46.80 2587 2184 41703 9961 98.9 1.534
-08.0 80 47.84 2636 2267 44041 10143 99.2 1.494
-06.0 81 48.88 2684 2352 46494 10312 99.6 1.456
-04.0 83 49.92 2732 2436 49068 10469 99.8 1.420
-02.0 85 50.96 2780 2522 51769 10612 99.9 1.385
+00.0 87 52.00 2827 2608 54604 10741 100.0 1.351
+02.0 88 53.04 2873 2694 57579 10858 100.0 1.319 ! Near Maximum !
+04.0 90 54.08 2919 2781 60703 10972 100.0 1.287 ! Near Maximum !
+06.0 92 55.12 2965 2869 63983 11084 100.0 1.257 ! Near Maximum !
+08.0 94 56.16 3010 2956 67429 11194 100.0 1.227 !DANGEROUS LOAD-DO NOT USE!
+10.0 95 57.20 3054 3045 71050 11301 100.0 1.199 !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 87 52.00 2916 2776 63052 10404 100.0 1.268 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 87 52.00 2695 2371 46108 10839 97.6 1.460


Cartridge : 6.5-280 Ack Imp
Bullet : .264, 147, Hornady ELD-M 26333
Useable Case Capaci: 66.527 grain H2O = 4.319 cm³
Cartridge O.A.L. L6: 3.405 inch = 86.49 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Hodgdon H4831 *T

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 74 44.00 2278 1694 28375 9028 90.1 1.805
-18.0 76 45.10 2332 1776 30156 9319 91.2 1.761
-16.0 78 46.20 2387 1859 32043 9604 92.4 1.718
-14.0 79 47.30 2441 1945 34049 9881 93.4 1.675
-12.0 81 48.40 2496 2033 36174 10149 94.4 1.633
-10.0 83 49.50 2550 2123 38413 10408 95.3 1.589
-08.0 85 50.60 2604 2214 40764 10655 96.1 1.545
-06.0 87 51.70 2659 2307 43248 10892 96.9 1.501
-04.0 89 52.80 2713 2402 45879 11115 97.6 1.460
-02.0 90 53.90 2767 2498 48665 11325 98.1 1.420
+00.0 92 55.00 2820 2596 51618 11521 98.7 1.381
+02.0 94 56.10 2874 2696 54748 11702 99.1 1.344
+04.0 96 57.20 2927 2797 58067 11867 99.4 1.308 ! Near Maximum !
+06.0 98 58.30 2980 2899 61588 12016 99.7 1.274 ! Near Maximum !
+08.0 100 59.40 3033 3002 65327 12147 99.9 1.240 !DANGEROUS LOAD-DO NOT USE!
+10.0 102 60.50 3085 3107 69300 12260 100.0 1.208 !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 92 55.00 2944 2829 60868 11291 100.0 1.284 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 92 55.00 2654 2298 42488 11188 93.2 1.508

 

[BruceP]

I hope that these help


Cartridge : 6.5-280 Ack Imp
Bullet : .264, 147, Hornady ELD-M 26333
Useable Case Capaci: 66.527 grain H2O = 4.319 cm³
Cartridge O.A.L. L6: 3.405 inch = 86.49 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Ramshot Hunter

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 67 42.40 2343 1792 30092 9310 96.7 1.765
-18.0 69 43.46 2395 1872 31896 9552 97.4 1.727
-16.0 70 44.52 2447 1954 33796 9781 98.1 1.690
-14.0 72 45.58 2498 2037 35795 9999 98.6 1.653
-12.0 74 46.64 2549 2120 37897 10202 99.1 1.613
-10.0 75 47.70 2599 2205 40108 10391 99.5 1.570
-08.0 77 48.76 2649 2291 42432 10566 99.7 1.528
-06.0 79 49.82 2699 2377 44876 10725 99.9 1.488
-04.0 80 50.88 2748 2464 47444 10867 100.0 1.450
-02.0 82 51.94 2796 2552 50143 10996 100.0 1.413
+00.0 84 53.00 2844 2640 52980 11121 100.0 1.377
+02.0 85 54.06 2891 2728 55963 11244 100.0 1.343 ! Near Maximum !
+04.0 87 55.12 2938 2817 59099 11365 100.0 1.310 ! Near Maximum !
+06.0 89 56.18 2984 2907 62397 11484 100.0 1.278 ! Near Maximum !
+08.0 90 57.24 3030 2997 65866 11600 100.0 1.247 !DANGEROUS LOAD-DO NOT USE!
+10.0 92 58.30 3076 3087 69516 11714 100.0 1.218 !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 84 53.00 2938 2817 62173 10778 100.0 1.285 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 84 53.00 2703 2385 43777 11352 98.4 1.500

Cartridge : 6.5-280 Ack Imp
Bullet : .264, 147, Hornady ELD-M 26333
Useable Case Capaci: 66.527 grain H2O = 4.319 cm³
Cartridge O.A.L. L6: 3.405 inch = 86.49 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Winchester 6,5 StaBall *T*C

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 65 43.20 2285 1704 29187 8317 99.6 1.778
-18.0 67 44.28 2333 1776 30966 8481 99.8 1.740
-16.0 69 45.36 2380 1849 32845 8630 100.0 1.702
-14.0 70 46.44 2427 1922 34830 8764 100.0 1.665
-12.0 72 47.52 2473 1996 36926 8894 100.0 1.629
-10.0 74 48.60 2518 2070 39119 9022 100.0 1.585
-08.0 75 49.68 2563 2144 41414 9148 100.0 1.543
-06.0 77 50.76 2608 2220 43828 9272 100.0 1.504
-04.0 79 51.84 2652 2295 46368 9394 100.0 1.465
-02.0 80 52.92 2695 2371 49042 9515 100.0 1.428
+00.0 82 54.00 2738 2448 51856 9633 100.0 1.393
+02.0 83 55.08 2781 2525 54820 9749 100.0 1.359
+04.0 85 56.16 2824 2603 57941 9863 100.0 1.326 ! Near Maximum !
+06.0 87 57.24 2866 2681 61229 9975 100.0 1.294 ! Near Maximum !
+08.0 88 58.32 2908 2760 64694 10085 100.0 1.263 !DANGEROUS LOAD-DO NOT USE!
+10.0 90 59.40 2950 2840 68348 10192 100.0 1.234 !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 82 54.00 2811 2578 60630 9400 100.0 1.307 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 82 54.00 2631 2259 42909 9969 100.0 1.508