.250 Ackley Improved Load Data.

A

Anonymous

Guest
I'm posting this question for someone, and I let him know this is the best knowledge base around. :grin:

I HAVE JUST REBARRELED ONE OF MY R-77 TO THIS CAL. BUT CURRENT DATA IS HARD TO FIND. ANYONE OUT THERE KNOW OF A DATA SOURCE &/OR USE THE .250 A.I.?
 
Justin:

give me powder and bullet options. I will run Q/L.
 
ANY/ALL REALLY. NEVER CAN HAVE TOO MUCH DATA TO CHOOSE FROM.

MY DEER LOAD IS 100 GR. PART. OR BAL. TIP; HAVE SEVERAL POWDERS ON HAND. PRESENTLY USING H414, H4895; RL15.

LOOKING FOR BEST VELOCITY.

ALSO USE 85 GR.BAL.TIP.FOR VARMINTS.
Click to expand...
 
Thi is with the standard 48000 psi standard. If you use like 30-06 pressures (if gun/brass is up to it) you will have a 25-06.


Cartridge : .257 Ack Imp (257 Rob)Bullet : .257, 85, Nosler BalTip 43004
Cartridge O.A.L. L6: 2.775 inch or 70.49 mm
Barrel Length : 24.0 inch or 609.6 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 69 35.20 2635 1311 26374 7946 93.3 1.427
-18.0 71 36.08 2694 1369 27937 8175 94.3 1.397
-16.0 72 36.96 2751 1429 29585 8396 95.3 1.368
-14.0 74 37.84 2809 1489 31322 8608 96.1 1.339
-12.0 76 38.72 2867 1551 33158 8811 96.9 1.312
-10.0 78 39.60 2924 1613 35088 9004 97.6 1.285
-08.0 79 40.48 2980 1676 37128 9185 98.2 1.258
-06.0 81 41.36 3036 1740 39255 9355 98.7 1.225
-04.0 83 42.24 3092 1805 41476 9513 99.1 1.194 ! Near Maximum !
-02.0 85 43.12 3147 1870 43809 9659 99.5 1.164 ! Near Maximum !
+00.0 86 44.00 3202 1935 46261 9790 99.7 1.136 ! Near Maximum !
+02.0 88 44.88 3256 2001 48839 9908 99.9 1.108 !DANGEROUS LOAD-DO NOT USE!
+04.0 90 45.76 3310 2068 51549 10012 100.0 1.081 !DANGEROUS LOAD-DO NOT USE!
+06.0 91 46.64 3363 2134 54398 10103 100.0 1.056 !DANGEROUS LOAD-DO NOT USE!
+08.0 93 47.52 3415 2201 57394 10192 100.0 1.031 !DANGEROUS LOAD-DO NOT USE!
+10.0 95 48.40 3467 2268 60545 10278 100.0 1.007 !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 86 44.00 3324 2085 54157 9496 100.0 1.060 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 86 44.00 3030 1733 38377 9698 95.9 1.235



Cartridge : .257 Ack Imp (257 Rob)Bullet : .257, 85, Nosler BalTip 43004
Cartridge O.A.L. L6: 2.775 inch or 70.49 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : Hodgdon H414

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 38.40 2615 1291 26163 8307 83.7 1.468
-18.0 70 39.36 2679 1355 27782 8599 85.1 1.434
-16.0 72 40.32 2744 1421 29498 8887 86.5 1.400
-14.0 74 41.28 2808 1488 31318 9171 87.8 1.367
-12.0 75 42.24 2872 1557 33245 9449 89.0 1.335
-10.0 77 43.20 2937 1628 35286 9720 90.2 1.304
-08.0 79 44.16 3002 1700 37448 9984 91.4 1.272
-06.0 80 45.12 3066 1774 39737 10240 92.5 1.236
-04.0 82 46.08 3131 1850 42160 10486 93.5 1.202 ! Near Maximum !
-02.0 84 47.04 3195 1927 44725 10722 94.4 1.169 ! Near Maximum !
+00.0 85 48.00 3260 2005 47442 10947 95.3 1.137 ! Near Maximum !
+02.0 87 48.96 3324 2085 50320 11161 96.1 1.106 !DANGEROUS LOAD-DO NOT USE!
+04.0 89 49.92 3388 2166 53369 11362 96.9 1.076 !DANGEROUS LOAD-DO NOT USE!
+06.0 91 50.88 3452 2249 56601 11550 97.5 1.048 !DANGEROUS LOAD-DO NOT USE!
+08.0 92 51.84 3515 2332 60028 11723 98.1 1.020 !DANGEROUS LOAD-DO NOT USE!
+10.0 94 52.80 3578 2417 63663 11881 98.6 0.993 !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 48.00 3433 2225 56269 11090 99.3 1.050 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 85 48.00 3040 1744 38901 10312 87.7 1.249



Cartridge : .257 Ack Imp (257 Rob)Bullet : .257, 100, Nosler BalTip 25100
Cartridge O.A.L. L6: 2.775 inch or 70.49 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : Hodgdon H414

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 66 36.00 2441 1323 26205 8282 86.6 1.573
-18.0 67 36.90 2499 1387 27774 8561 87.9 1.536
-16.0 69 37.80 2558 1453 29432 8835 89.1 1.501
-14.0 71 38.70 2616 1520 31184 9104 90.3 1.466
-12.0 72 39.60 2674 1588 33033 9367 91.4 1.432
-10.0 74 40.50 2733 1658 34984 9622 92.4 1.399
-08.0 76 41.40 2791 1730 37043 9871 93.4 1.366
-06.0 77 42.30 2849 1802 39215 10110 94.4 1.328
-04.0 79 43.20 2907 1876 41506 10341 95.2 1.293 ! Near Maximum !
-02.0 81 44.10 2965 1952 43923 10561 96.0 1.258 ! Near Maximum !
+00.0 82 45.00 3022 2028 46473 10771 96.7 1.225 ! Near Maximum !
+02.0 84 45.90 3080 2106 49163 10969 97.4 1.193 !DANGEROUS LOAD-DO NOT USE!
+04.0 86 46.80 3137 2185 52003 11155 98.0 1.162 !DANGEROUS LOAD-DO NOT USE!
+06.0 87 47.70 3194 2265 55000 11329 98.5 1.132 !DANGEROUS LOAD-DO NOT USE!
+08.0 89 48.60 3250 2345 58165 11489 98.9 1.103 !DANGEROUS LOAD-DO NOT USE!
+10.0 91 49.50 3306 2427 61508 11635 99.3 1.076 !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 45.00 3173 2235 54885 10782 99.8 1.134 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 82 45.00 2828 1776 38282 10263 89.9 1.342



Cartridge : .257 Ack Imp (257 Rob)Bullet : .257, 100, Nosler BalTip 25100
Cartridge O.A.L. L6: 2.775 inch or 70.49 mm
Barrel Length : 24.0 inch or 609.6 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 66 32.80 2438 1320 26102 7748 95.3 1.538
-18.0 68 33.62 2490 1377 27607 7958 96.1 1.506
-16.0 69 34.44 2542 1435 29189 8161 96.9 1.475
-14.0 71 35.26 2594 1494 30851 8355 97.6 1.445
-12.0 73 36.08 2645 1554 32595 8540 98.2 1.416
-10.0 74 36.90 2696 1614 34407 8715 98.7 1.387
-08.0 76 37.72 2747 1675 36293 8879 99.1 1.359
-06.0 78 38.54 2797 1737 38269 9032 99.5 1.326
-04.0 79 39.36 2846 1799 40339 9173 99.7 1.295
-02.0 81 40.18 2895 1861 42509 9302 99.9 1.263 ! Near Maximum !
+00.0 83 41.00 2944 1924 44781 9419 100.0 1.233 ! Near Maximum !
+02.0 84 41.82 2992 1987 47161 9524 100.0 1.204 ! Near Maximum !
+04.0 86 42.64 3039 2051 49655 9625 100.0 1.176 !DANGEROUS LOAD-DO NOT USE!
+06.0 88 43.46 3086 2114 52267 9724 100.0 1.149 !DANGEROUS LOAD-DO NOT USE!
+08.0 89 44.28 3132 2178 55004 9821 100.0 1.123 !DANGEROUS LOAD-DO NOT USE!
+10.0 91 45.10 3178 2242 57871 9917 100.0 1.098 !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 83 41.00 3046 2060 52204 9125 100.0 1.153 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 83 41.00 2796 1736 37317 9457 97.2 1.340
 
JusMo and Pop,

Is the subject cartridge a 250 AI based off a 250-3000 Savage or
257AI based off the 257 Roberts?

JD338
 
I ran the BOB NOT the 250 Savage! as listed in the Quickload heading!
 
This one is 250 AI!!!!!!!!!

Cartridge : .250 Ack Imp (250 Savage)
Bullet : .257, 100, Nosler BalTip 25100
Cartridge O.A.L. L6: 2.710 inch or 68.83 mm
Barrel Length : 24.0 inch or 609.6 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 73 30.40 2429 1310 27288 7123 94.5 1.491
-18.0 74 31.16 2483 1369 28922 7321 95.4 1.458
-16.0 76 31.92 2536 1428 30647 7511 96.2 1.426
-14.0 78 32.68 2590 1489 32469 7692 97.0 1.395
-12.0 80 33.44 2643 1551 34393 7865 97.6 1.365
-10.0 82 34.20 2695 1613 36425 8028 98.2 1.336
-08.0 83 34.96 2747 1676 38570 8181 98.7 1.301
-06.0 85 35.72 2799 1740 40832 8323 99.2 1.268
-04.0 87 36.48 2851 1804 43231 8454 99.5 1.236
-02.0 89 37.24 2902 1869 45743 8573 99.7 1.205 ! Near Maximum !
+00.0 91 38.00 2952 1935 48375 8680 99.9 1.175 ! Near Maximum !
+02.0 93 38.76 3002 2001 51148 8775 100.0 1.146 ! Near Maximum !
+04.0 94 39.52 3051 2068 54073 8858 100.0 1.118 !DANGEROUS LOAD-DO NOT USE!
+06.0 96 40.28 3100 2134 57159 8939 100.0 1.091 !DANGEROUS LOAD-DO NOT USE!
+08.0 98 41.04 3149 2201 60415 9017 100.0 1.065 !DANGEROUS LOAD-DO NOT USE!
+10.0 100 41.80 3197 2269 63852 9093 100.0 1.040 !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 38.00 3058 2076 56889 8379 100.0 1.098 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 91 38.00 2799 1739 39984 8691 96.6 1.276



Cartridge : .250 Ack Imp (250 Savage)
Bullet : .257, 100, Nosler BalTip 25100
Cartridge O.A.L. L6: 2.710 inch or 68.83 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : Hodgdon H414

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 73 33.60 2448 1331 27854 7647 85.8 1.510
-18.0 75 34.44 2508 1397 29641 7906 87.1 1.472
-16.0 76 35.28 2569 1465 31531 8161 88.4 1.435
-14.0 78 36.12 2629 1535 33542 8410 89.6 1.399
-12.0 80 36.96 2690 1607 35679 8653 90.8 1.364
-10.0 82 37.80 2751 1680 37950 8889 91.9 1.328
-08.0 84 38.64 2812 1755 40364 9117 92.9 1.289
-06.0 86 39.48 2872 1832 42930 9336 93.9 1.253
-04.0 87 40.32 2933 1910 45659 9545 94.8 1.217 ! Near Maximum !
-02.0 89 41.16 2994 1990 48561 9745 95.7 1.183 ! Near Maximum !
+00.0 91 42.00 3054 2071 51649 9933 96.5 1.150 ! Near Maximum !
+02.0 93 42.84 3115 2154 54937 10109 97.2 1.118 !DANGEROUS LOAD-DO NOT USE!
+04.0 95 43.68 3175 2238 58440 10273 97.8 1.087 !DANGEROUS LOAD-DO NOT USE!
+06.0 97 44.52 3235 2323 62174 10423 98.3 1.058 !DANGEROUS LOAD-DO NOT USE!
+08.0 98 45.36 3295 2410 66157 10559 98.8 1.029 !DANGEROUS LOAD-DO NOT USE!
+10.0 100 46.20 3354 2498 70411 10681 99.2 1.001 !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 42.00 3208 2285 61550 9932 99.7 1.064 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 91 42.00 2855 1810 42110 9467 89.4 1.261




Cartridge : .250 Ack Imp (250 Savage)
Bullet : .257, 85, Nosler BalTip 43004
Cartridge O.A.L. L6: 2.710 inch or 68.83 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : Hodgdon H414

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 35.20 2573 1249 26247 7476 81.6 1.438
-18.0 76 36.08 2638 1313 27991 7747 83.1 1.402
-16.0 78 36.96 2703 1379 29851 8014 84.5 1.367
-14.0 79 37.84 2768 1447 31815 8278 85.9 1.334
-12.0 81 38.72 2834 1516 33885 8536 87.2 1.300
-10.0 83 39.60 2900 1588 36083 8789 88.5 1.268
-08.0 85 40.48 2967 1661 38425 9035 89.7 1.233
-06.0 87 41.36 3033 1736 40921 9273 90.9 1.197
-04.0 89 42.24 3099 1813 43582 9504 92.0 1.162
-02.0 91 43.12 3166 1892 46420 9724 93.1 1.129 ! Near Maximum !
+00.0 92 44.00 3233 1972 49449 9935 94.1 1.097 ! Near Maximum !
+02.0 94 44.88 3299 2054 52681 10135 95.0 1.066 !DANGEROUS LOAD-DO NOT USE!
+04.0 96 45.76 3366 2138 56134 10323 95.8 1.035 !DANGEROUS LOAD-DO NOT USE!
+06.0 98 46.64 3432 2224 59825 10498 96.6 1.006 !DANGEROUS LOAD-DO NOT USE!
+08.0 100 47.52 3499 2310 63774 10659 97.3 0.978 !DANGEROUS LOAD-DO NOT USE!
+10.0 102 48.40 3565 2399 68003 10807 97.9 0.951 !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 44.00 3413 2199 59197 10125 98.7 1.012 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 92 44.00 3006 1706 40092 9299 85.9 1.206


Cartridge : .250 Ack Imp (250 Savage)
Bullet : .257, 85, Nosler BalTip 43004
Cartridge O.A.L. L6: 2.710 inch or 68.83 mm
Barrel Length : 24.0 inch or 609.6 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 76 32.80 2636 1312 27780 7356 92.5 1.379
-18.0 78 33.62 2696 1372 29498 7571 93.6 1.347
-16.0 80 34.44 2756 1434 31319 7779 94.6 1.317
-14.0 82 35.26 2816 1497 33247 7978 95.5 1.288
-12.0 83 36.08 2876 1561 35289 8168 96.4 1.259
-10.0 85 36.90 2935 1626 37453 8348 97.1 1.231
-08.0 87 37.72 2994 1692 39746 8517 97.8 1.196
-06.0 89 38.54 3052 1759 42177 8675 98.4 1.165
-04.0 91 39.36 3111 1826 44755 8821 98.9 1.134
-02.0 93 40.18 3168 1895 47491 8954 99.3 1.104 ! Near Maximum !
+00.0 95 41.00 3226 1964 50392 9074 99.6 1.076 ! Near Maximum !
+02.0 97 41.82 3283 2034 53455 9180 99.8 1.048 !DANGEROUS LOAD-DO NOT USE!
+04.0 99 42.64 3339 2104 56683 9272 100.0 1.022 !DANGEROUS LOAD-DO NOT USE!
+06.0 101 43.46 3394 2175 60102 9349 100.0 0.996 !DANGEROUS LOAD-DO NOT USE!
+08.0 102 44.28 3450 2246 63727 9418 100.0 0.971 !DANGEROUS LOAD-DO NOT USE!
+10.0 104 45.10 3504 2317 67573 9485 100.0 0.947 !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 95 41.00 3351 2120 59531 8781 100.0 1.003 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 95 41.00 3048 1753 41572 8975 95.4 1.170
 
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