A QL request for a 458 Lott and 300 Weatherby please

[IdahoCTD]

If someone doesn't mind, I need a idea of where to start for R-25 with 208 Amax's in a 300 Weatherby and with 300gr Nosler Ballistic Tip round noses for the 458 Lott using R-7 and R-10x. I'm putting them both together to test brakes and will try to be around 300wm velocities (2950-3000+fps), or slightly higher, in the 24" barrel of the 300 Weatherby. The Lott is to approximate the recoil of a smokeless muzzleloader. A customer is shooting 310gr bullets 2700fps in his muzzleloader so I need to be above that. I'm pretty sure I was shooting between 86and 88grs of R-7 with a 300gr Barnes around 3000fps the last time I whacked a bear with it but can't find my loading data.

While we are at it, if you don't mind..... a 308 with 165gr Speers and 180gr Sierras SBT's using 748, H4895, or R-15.

I might even strap my Remington 700ml .50 caliber to my test sled while I'm out there. :mrgreen: :lol:

 

[jimbires]

I'd say start at 76.0 grains in the 300 wby
I show two noslers for the LOtt , a MZ bullet and a Partition . I used the mz .
Cartridge : .300 Weath. Mag.
Bullet : .308, 208, Hornady A-MAX 30732
Useable Case Capaci: 84.214 grain H2O = 5.468 cm³
Cartridge O.A.L. L6: 3.560 inch = 90.42 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-25

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 83 63.92 2368 2590 32260 11152 97.9 1.647
-18.0 85 65.52 2427 2721 34502 11422 98.6 1.602
-16.0 87 67.12 2486 2855 36901 11666 99.2 1.559
-14.0 89 68.71 2545 2991 39472 11881 99.7 1.510
-12.0 91 70.31 2603 3130 42229 12066 99.9 1.462
-10.0 93 71.91 2661 3270 45188 12220 100.0 1.416
-08.0 95 73.51 2718 3411 48363 12355 100.0 1.372
-06.0 97 75.11 2774 3554 51775 12486 100.0 1.330
-04.0 99 76.70 2829 3698 55444 12614 100.0 1.289 ! Near Maximum !
-02.0 101 78.30 2885 3843 59393 12737 100.0 1.249 ! Near Maximum !
+00.0 103 79.90 2939 3990 63648 12857 100.0 1.211 !DANGEROUS LOAD-DO NOT USE!
+02.0 106 81.50 2994 4139 68215 12973 100.0 1.175 !DANGEROUS LOAD-DO NOT USE!
+04.0 108 83.10 3047 4289 73100 13084 100.0 1.140 !DANGEROUS LOAD-DO NOT USE!
+06.0 110 84.69 3101 4442 78346 13191 100.0 1.106 !DANGEROUS LOAD-DO NOT USE!
+08.0 112 86.29 3155 4596 83985 13292 100.0 1.074 !DANGEROUS LOAD-DO NOT USE!
+10.0 114 87.89 3208 4753 90057 13389 100.0 1.042 !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 103 79.90 3042 4273 78033 12415 100.0 1.120 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 79.90 2782 3573 50454 13446 99.7 1.335


Cartridge : .458 Lott
Bullet : .458, 300, Nosler MZ 50300
Useable Case Capaci: 101.718 grain H2O = 6.604 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-7

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 77 69.52 2444 3977 33643 5657 98.9 1.318
-18.0 79 71.26 2495 4147 35863 5767 99.3 1.280
-16.0 80 73.00 2546 4318 38207 5867 99.6 1.244
-14.0 82 74.73 2596 4490 40682 5959 99.8 1.209
-12.0 84 76.47 2646 4663 43296 6041 100.0 1.177
-10.0 86 78.21 2694 4836 46057 6113 100.0 1.145
-08.0 88 79.95 2743 5011 48975 6180 100.0 1.115
-06.0 90 81.69 2790 5186 52058 6246 100.0 1.086
-04.0 92 83.42 2837 5362 55318 6310 100.0 1.059 ! Near Maximum !
-02.0 94 85.16 2884 5539 58766 6373 100.0 1.032 ! Near Maximum !
+00.0 96 86.90 2929 5716 62415 6434 100.0 1.007 !DANGEROUS LOAD-DO NOT USE!
+02.0 98 88.64 2975 5895 66279 6494 100.0 0.982 !DANGEROUS LOAD-DO NOT USE!
+04.0 100 90.38 3020 6075 70372 6552 100.0 0.959 !DANGEROUS LOAD-DO NOT USE!
+06.0 102 92.11 3065 6256 74713 6608 100.0 0.936 !DANGEROUS LOAD-DO NOT USE!
+08.0 103 93.85 3109 6439 79319 6662 100.0 0.914 !DANGEROUS LOAD-DO NOT USE!
+10.0 105 95.59 3153 6623 84211 6715 100.0 0.893 !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 96 86.90 3001 5998 72990 6220 100.0 0.950 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 96 86.90 2820 5298 51790 6726 99.8 1.085


Cartridge : .458 Lott
Bullet : .458, 300, Nosler MZ 50300
Useable Case Capaci: 101.718 grain H2O = 6.604 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-10x

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 82 72.56 2471 4066 32366 6058 98.2 1.330
-18.0 84 74.37 2526 4250 34630 6183 98.8 1.290
-16.0 86 76.19 2580 4435 37033 6298 99.2 1.252
-14.0 88 78.00 2634 4623 39584 6402 99.6 1.215
-12.0 90 79.82 2688 4812 42290 6495 99.8 1.180
-10.0 92 81.63 2740 5003 45164 6577 100.0 1.147
-08.0 94 83.44 2792 5194 48216 6647 100.0 1.115
-06.0 96 85.26 2844 5387 51458 6711 100.0 1.084
-04.0 98 87.07 2894 5580 54904 6773 100.0 1.055 ! Near Maximum !
-02.0 100 88.89 2944 5775 58568 6834 100.0 1.027 ! Near Maximum !
+00.0 103 90.70 2994 5970 62468 6893 100.0 1.000 !DANGEROUS LOAD-DO NOT USE!
+02.0 105 92.51 3043 6167 66620 6950 100.0 0.974 !DANGEROUS LOAD-DO NOT USE!
+04.0 107 94.33 3091 6366 71044 7006 100.0 0.949 !DANGEROUS LOAD-DO NOT USE!
+06.0 109 96.14 3139 6566 75764 7059 100.0 0.925 !DANGEROUS LOAD-DO NOT USE!
+08.0 111 97.96 3187 6767 80805 7110 100.0 0.902 !DANGEROUS LOAD-DO NOT USE!
+10.0 113 99.77 3235 6971 86192 7158 100.0 0.879 !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 103 90.70 3077 6305 74391 6639 100.0 0.938 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 90.70 2866 5471 50648 7216 99.5 1.086


308

Cartridge : .308 Win. (SAAMI)
Bullet : .308, 165, Speer SP 2035
Useable Case Capaci: 49.336 grain H2O = 3.203 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Winchester 748

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 77 37.44 2326 1982 32333 6464 95.6 1.468
-18.0 78 38.38 2380 2075 34509 6627 96.5 1.429
-16.0 80 39.31 2434 2170 36839 6780 97.2 1.390
-14.0 82 40.25 2487 2266 39325 6924 97.9 1.349
-12.0 84 41.18 2540 2364 41983 7056 98.5 1.310
-10.0 86 42.12 2593 2464 44824 7178 99.0 1.272
-08.0 88 43.06 2646 2564 47868 7287 99.4 1.236
-06.0 90 43.99 2698 2666 51126 7384 99.7 1.202
-04.0 92 44.93 2749 2769 54598 7468 99.9 1.168 ! Near Maximum !
-02.0 94 45.86 2800 2873 58292 7539 100.0 1.136 ! Near Maximum !
+00.0 96 46.80 2851 2978 62242 7597 100.0 1.105 !DANGEROUS LOAD-DO NOT USE!
+02.0 98 47.74 2901 3084 66471 7650 100.0 1.075 !DANGEROUS LOAD-DO NOT USE!
+04.0 99 48.67 2951 3191 71004 7701 100.0 1.046 !DANGEROUS LOAD-DO NOT USE!
+06.0 101 49.61 3000 3298 75868 7749 100.0 1.019 !DANGEROUS LOAD-DO NOT USE!
+08.0 103 50.54 3049 3407 81095 7795 100.0 0.992 !DANGEROUS LOAD-DO NOT USE!
+10.0 105 51.48 3098 3516 86718 7838 100.0 0.966 !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 96 46.80 2946 3180 74692 7260 100.0 1.033 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 96 46.80 2706 2683 50264 7801 97.7 1.202
Cartridge : .308 Win. (SAAMI)
Bullet : .308, 165, Speer SP 2035
Useable Case Capaci: 49.336 grain H2O = 3.203 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 24.0 inch = 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 80 36.32 2312 1959 33192 6418 93.9 1.475
-18.0 82 37.23 2365 2050 35346 6591 94.8 1.436
-16.0 84 38.14 2419 2143 37634 6758 95.7 1.396
-14.0 86 39.04 2471 2238 40064 6917 96.4 1.356
-12.0 88 39.95 2524 2334 42645 7068 97.1 1.318
-10.0 90 40.86 2576 2432 45388 7210 97.8 1.281
-08.0 92 41.77 2628 2531 48302 7343 98.3 1.246
-06.0 94 42.68 2680 2631 51400 7466 98.8 1.212
-04.0 96 43.58 2731 2733 54695 7579 99.2 1.179 ! Near Maximum !
-02.0 98 44.49 2782 2836 58202 7681 99.5 1.147 ! Near Maximum !
+00.0 100 45.40 2833 2941 61937 7772 99.7 1.117 !DANGEROUS LOAD-DO NOT USE!
+02.0 102 46.31 2883 3046 65918 7852 99.9 1.087 !DANGEROUS LOAD-DO NOT USE!
+04.0 104 47.22 2933 3153 70164 7920 100.0 1.059 !DANGEROUS LOAD-DO NOT USE!
+06.0 106 48.12 2983 3260 74698 7976 100.0 1.032 !DANGEROUS LOAD-DO NOT USE!
+08.0 108 49.03 3032 3368 79544 8028 100.0 1.005 !DANGEROUS LOAD-DO NOT USE!
+10.0 110 49.94 3081 3477 84731 8078 100.0 0.980 !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 45.40 2934 3153 73235 7460 100.0 1.045 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 45.40 2687 2645 50891 7799 96.1 1.212


Cartridge : .308 Win. (SAAMI)
Bullet : .308, 165, Speer SP 2035
Useable Case Capaci: 49.336 grain H2O = 3.203 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-15

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 83 37.68 2304 1944 32384 6498 91.8 1.485
-18.0 85 38.62 2359 2038 34550 6686 92.9 1.444
-16.0 87 39.56 2414 2135 36861 6867 93.9 1.406
-14.0 89 40.51 2469 2233 39324 7040 94.9 1.365
-12.0 91 41.45 2523 2333 41952 7205 95.7 1.324
-10.0 93 42.39 2578 2435 44756 7362 96.5 1.286
-08.0 95 43.33 2632 2539 47749 7509 97.2 1.249
-06.0 97 44.27 2687 2645 50944 7646 97.8 1.213
-04.0 99 45.22 2741 2752 54359 7772 98.4 1.179 ! Near Maximum !
-02.0 102 46.16 2795 2861 58011 7888 98.8 1.146 ! Near Maximum !
+00.0 104 47.10 2848 2972 61919 7992 99.2 1.114 !DANGEROUS LOAD-DO NOT USE!
+02.0 106 48.04 2901 3084 66106 8083 99.5 1.083 !DANGEROUS LOAD-DO NOT USE!
+04.0 108 48.98 2954 3198 70596 8162 99.8 1.054 !DANGEROUS LOAD-DO NOT USE!
+06.0 110 49.93 3007 3313 75418 8228 99.9 1.025 !DANGEROUS LOAD-DO NOT USE!
+08.0 112 50.87 3059 3429 80602 8280 100.0 0.998 !DANGEROUS LOAD-DO NOT USE!
+10.0 114 51.81 3111 3546 86185 8320 100.0 0.971 !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 104 47.10 2961 3212 73872 7693 100.0 1.039 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 104 47.10 2688 2647 50350 7924 94.6 1.214


180 gr bullet

Cartridge : .308 Win. (SAAMI)
Bullet : .308, 180, Sierra SPBT 2160
Useable Case Capaci: 47.891 grain H2O = 3.110 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-15

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 82 36.08 2207 1947 32634 6307 93.2 1.547
-18.0 84 36.98 2259 2039 34788 6481 94.2 1.506
-16.0 86 37.88 2310 2133 37081 6649 95.1 1.465
-14.0 88 38.79 2362 2230 39522 6810 95.9 1.422
-12.0 90 39.69 2413 2328 42121 6962 96.7 1.381
-10.0 92 40.59 2464 2427 44890 7105 97.4 1.342
-08.0 94 41.49 2515 2529 47840 7240 98.0 1.304
-06.0 96 42.39 2566 2631 50984 7364 98.5 1.267
-04.0 98 43.30 2616 2736 54337 7478 98.9 1.232 ! Near Maximum !
-02.0 100 44.20 2666 2842 57916 7582 99.3 1.198 ! Near Maximum !
+00.0 102 45.10 2716 2949 61738 7674 99.6 1.166 !DANGEROUS LOAD-DO NOT USE!
+02.0 104 46.00 2766 3057 65825 7755 99.8 1.134 !DANGEROUS LOAD-DO NOT USE!
+04.0 106 46.90 2815 3167 70198 7824 99.9 1.104 !DANGEROUS LOAD-DO NOT USE!
+06.0 108 47.81 2864 3277 74883 7880 100.0 1.075 !DANGEROUS LOAD-DO NOT USE!
+08.0 110 48.71 2912 3389 79908 7926 100.0 1.047 !DANGEROUS LOAD-DO NOT USE!
+10.0 112 49.61 2960 3502 85306 7970 100.0 1.019 !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 102 45.10 2817 3172 73495 7357 100.0 1.089 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 102 45.10 2570 2640 50320 7678 95.6 1.269


Cartridge : .308 Win. (SAAMI)
Bullet : .308, 180, Sierra SPBT 2160
Useable Case Capaci: 47.891 grain H2O = 3.110 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 24.0 inch = 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 79 34.80 2215 1960 33483 6216 95.1 1.537
-18.0 81 35.67 2265 2050 35629 6377 95.9 1.495
-16.0 83 36.54 2314 2141 37905 6530 96.7 1.454
-14.0 85 37.41 2364 2234 40319 6676 97.3 1.413
-12.0 87 38.28 2413 2328 42879 6814 97.9 1.374
-10.0 89 39.15 2462 2423 45594 6944 98.5 1.336
-08.0 91 40.02 2511 2520 48475 7064 98.9 1.300
-06.0 93 40.89 2559 2618 51534 7175 99.3 1.265
-04.0 95 41.76 2607 2717 54781 7275 99.6 1.231 ! Near Maximum !
-02.0 97 42.63 2655 2817 58231 7366 99.8 1.199 ! Near Maximum !
+00.0 99 43.50 2702 2918 61899 7446 99.9 1.168 !DANGEROUS LOAD-DO NOT USE!
+02.0 100 44.37 2749 3019 65802 7514 100.0 1.137 !DANGEROUS LOAD-DO NOT USE!
+04.0 102 45.24 2795 3122 69956 7574 100.0 1.109 !DANGEROUS LOAD-DO NOT USE!
+06.0 104 46.11 2841 3226 74384 7631 100.0 1.081 !DANGEROUS LOAD-DO NOT USE!
+08.0 106 46.98 2886 3330 79107 7686 100.0 1.054 !DANGEROUS LOAD-DO NOT USE!
+10.0 108 47.85 2932 3435 84151 7739 100.0 1.028 !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 99 43.50 2791 3114 73038 7136 100.0 1.095 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 99 43.50 2569 2638 50972 7543 97.0 1.266


Cartridge : .308 Win. (SAAMI)
Bullet : .308, 180, Sierra SPBT 2160
Useable Case Capaci: 47.891 grain H2O = 3.110 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Winchester 748

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 75 35.84 2226 1981 32579 6241 96.7 1.530
-18.0 77 36.74 2277 2072 34753 6390 97.4 1.488
-16.0 79 37.63 2327 2164 37073 6529 98.1 1.448
-14.0 81 38.53 2377 2258 39548 6658 98.6 1.407
-12.0 83 39.42 2427 2354 42189 6777 99.1 1.367
-10.0 85 40.32 2476 2450 45011 6885 99.5 1.328
-08.0 87 41.22 2525 2548 48023 6981 99.7 1.291
-06.0 89 42.11 2573 2646 51217 7065 99.9 1.256
-04.0 91 43.01 2621 2746 54608 7137 100.0 1.222 ! Near Maximum !
-02.0 92 43.90 2668 2846 58227 7198 100.0 1.189 ! Near Maximum !
+00.0 94 44.80 2715 2947 62089 7256 100.0 1.157 !DANGEROUS LOAD-DO NOT USE!
+02.0 96 45.70 2762 3049 66217 7311 100.0 1.127 !DANGEROUS LOAD-DO NOT USE!
+04.0 98 46.59 2808 3151 70631 7365 100.0 1.097 !DANGEROUS LOAD-DO NOT USE!
+06.0 100 47.49 2854 3255 75356 7416 100.0 1.069 !DANGEROUS LOAD-DO NOT USE!
+08.0 102 48.38 2899 3359 80421 7465 100.0 1.042 !DANGEROUS LOAD-DO NOT USE!
+10.0 104 49.28 2944 3465 85857 7511 100.0 1.015 !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 94 44.80 2800 3133 74323 6946 100.0 1.084 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 94 44.80 2585 2671 50203 7519 98.4 1.257

 

[IdahoCTD]

Thanks Jim. That's kind of where I was thinking about starting. I shoot 210gr Matrix bullets from my 30-8mm with 76grs of R-22 at 3100fps in a 27" barrel. A 300 Weatherby and 30-8mm are almost identical for powder capacity and velocity. With R-25 I should be able to go higher but it's for testing not for accuracy or speed.

 

[jimbires]

your welcome , glad I could help .

 

[IdahoCTD]

Jim,

If you have time could you do a list of the powders for top speeds with 208 Amax's at 3.75" OAL in the 300 Weatherby with 24" barrel? I ran 75grs of R-25 and only got 2660fps. I'd like to try and get it up in the 2900fps range if possible.

 

[jimbires]

Cartridge : .300 Weath. Mag.
Bullet : .308, 208, Hornady A-MAX 30732
Useable Case Capaci: 87.795 grain H2O = 5.700 cm³
Cartridge O.A.L. L6: 3.750 inch = 95.25 mm
Barrel Length : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 63817 psi, or 440 MPa
or a maximum loading ratio or filling of 105 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

31 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Vihtavuori N570 105.0 89.6 5.81 3031 98.2 63657 16116 1.209 !DANGEROUS LOAD-DO NOT USE!
Bofors RP30 104.2 84.3 5.46 2965 100.0 63817 14360 1.222 !DANGEROUS LOAD-DO NOT USE!
Norma MRP 2 104.2 84.3 5.46 2965 100.0 63817 14360 1.222 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 517 99.1 85.6 5.55 2964 100.0 63817 14119 1.207 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12 98.9 85.5 5.54 2963 100.0 63817 14084 1.208 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560 96.3 79.7 5.16 2963 99.8 63817 14421 1.211 !DANGEROUS LOAD-DO NOT USE!
Accurate MAGPRO 96.6 83.1 5.39 2959 99.2 63817 14630 1.218 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-33 105.0 92.2 5.97 2958 97.8 59468 15714 1.249 ! Near Maximum !
Alliant Reloder-26 93.2 81.1 5.25 2957 100.0 63817 13613 1.229 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC 95.2 79.2 5.13 2953 99.9 63817 13942 1.201 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 100.7 79.2 5.13 2953 99.9 63817 13942 1.201 !DANGEROUS LOAD-DO NOT USE!
Norma MRP 94.4 79.8 5.17 2952 100.0 63817 13801 1.220 !DANGEROUS LOAD-DO NOT USE!
ADI AP 2214 100.3 84.3 5.46 2948 100.0 63817 13671 1.194 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-25 101.9 82.1 5.32 2947 100.0 63817 13292 1.212 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 70 91.8 79.1 5.13 2946 100.0 63817 13396 1.204 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2213 96.4 78.9 5.11 2943 99.9 63817 13852 1.197 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5/NP ~approximation 96.6 79.0 5.12 2934 100.0 63817 13712 1.217 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA15 96.6 79.0 5.12 2934 100.0 63817 13712 1.217 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-22 96.6 79.0 5.12 2934 100.0 63817 13712 1.217 !DANGEROUS LOAD-DO NOT USE!
Bofors RP15 99.2 79.4 5.15 2933 100.0 63817 13743 1.217 !DANGEROUS LOAD-DO NOT USE!
Winchester WXR 99.2 79.4 5.15 2933 100.0 63817 13743 1.217 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2217 105.0 84.1 5.45 2931 100.0 62772 13609 1.203 ! Near Maximum !
Hodgdon H1000 105.0 84.1 5.45 2931 100.0 62772 13609 1.203 ! Near Maximum !
Bofors RP5 NT ~approximation 100.2 82.6 5.36 2921 99.1 63817 13869 1.197 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 80 105.0 92.2 5.97 2917 97.9 56427 15527 1.275 ! Near Maximum !
Ramshot Magnum 96.5 85.0 5.51 2914 100.0 63817 13090 1.216 !DANGEROUS LOAD-DO NOT USE!
Rottweil R905 98.0 78.7 5.10 2912 99.7 63817 13573 1.215 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2218 105.0 90.5 5.87 2909 96.7 54906 15972 1.270 ! Near Maximum !
ADI AR 2209 93.5 75.3 4.88 2900 100.0 63817 13059 1.203 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-19 94.0 76.1 4.93 2898 100.0 63817 13119 1.210 !DANGEROUS LOAD-DO NOT USE!
Bofors RP14 ~approximation 94.7 76.6 4.97 2892 100.0 63817 13034 1.210 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2225 105.0 85.4 5.54 2888 100.0 55983 13866 1.275 ! Near Maximum !
Hodgdon Retumbo 105.0 85.4 5.54 2888 100.0 55983 13866 1.275 ! Near Maximum !
Hodgdon H4831 SC 95.3 78.0 5.05 2885 99.6 63817 13152 1.206 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 99.2 78.0 5.05 2885 99.6 63817 13152 1.206 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA4 92.2 74.7 4.84 2878 100.0 63817 12827 1.209 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 ~approximation 92.2 74.7 4.84 2878 100.0 63817 12827 1.209 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-23 98.6 78.1 5.06 2877 100.0 63817 12302 1.230 !DANGEROUS LOAD-DO NOT USE!
Somchem S385 94.1 77.0 4.99 2858 100.0 63817 12466 1.230 !DANGEROUS LOAD-DO NOT USE!
Rottweil R904 93.3 74.4 4.82 2858 99.9 63817 12630 1.208 !DANGEROUS LOAD-DO NOT USE!
Winchester Supreme 780 92.9 79.3 5.14 2856 100.0 63817 12517 1.217 !DANGEROUS LOAD-DO NOT USE!
Lovex D100 105.0 91.4 5.93 2853 93.8 63160 13588 1.221 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 NT ~approximation 90.0 74.0 4.79 2849 100.0 63817 12243 1.222 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N165 99.2 79.4 5.14 2847 100.0 63817 12227 1.221 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N160 99.6 77.2 5.01 2843 99.8 63817 12418 1.211 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori 24N41 105.0 90.5 5.87 2840 91.7 57700 14316 1.255 ! Near Maximum !
Somchem S365 90.5 72.9 4.72 2839 100.0 63817 11654 1.236 !DANGEROUS LOAD-DO NOT USE!
Accurate 3100 96.8 78.4 5.08 2836 100.0 63817 12050 1.248 !DANGEROUS LOAD-DO NOT USE!
Lovex S071 102.4 78.4 5.08 2836 100.0 63817 12050 1.248 !DANGEROUS LOAD-DO NOT USE!
IMR 4831 93.5 72.5 4.70 2833 100.0 63817 11769 1.234 !DANGEROUS LOAD-DO NOT USE!
Somchem S361 92.4 79.6 5.16 2832 99.6 63817 12468 1.219 !DANGEROUS LOAD-DO NOT USE!
Norma 217 105.0 83.7 5.42 2816 100.0 51329 14177 1.352
Hodgdon H870 105.0 87.8 5.69 2804 97.2 50660 14829 1.348
Hodgdon Hybrid 100V 91.5 71.7 4.64 2803 100.0 63817 11125 1.228 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-50 105.0 91.9 5.96 2785 94.9 49551 15350 1.388
Vihtavuori N170 105.0 84.1 5.45 2783 95.6 57236 13403 1.290 ! Near Maximum !
Bofors 12,7mmRA NC1214 Lot20115087 105.0 89.9 5.82 2715 87.0 50430 14396 1.395
Hodgdon US 869 105.0 90.5 5.87 2659 88.3 47563 13478 1.387
Hodgdon 50BMG 105.0 86.3 5.59 2656 84.1 47632 13515 1.383
SNPE Vectan SP 13 105.0 86.8 5.63 2605 92.3 44237 13133 1.446
Accurate 8700 105.0 88.7 5.75 2591 91.9 42819 13173 1.449
Vihtavuori 20N29 105.0 91.4 5.93 2574 88.8 41973 13334 1.478
PB Clermont PCL 513/520/9520 105.0 86.8 5.63 2545 89.7 41376 12863 1.489
NC A3502 ,test only 105.0 83.1 5.39 2346 66.1 36768 10633 1.550
TLP A 502(RH) ,test only 105.0 83.1 5.39 2322 70.3 34886 10944 1.589
V1734 7-multiperf ,test only 105.0 83.1 5.39 1666 32.8 18936 5255 2.080

 

[IdahoCTD]

Thanks Jim. I actually used 77grs of R-25. So I might try 80 and 81 and see where that gets me. I have plenty of R-33 too I could try.

 

[jimbires]

your welcom Nathan . these might help you too .

Cartridge : .300 Weath. Mag.
Bullet : .308, 208, Hornady A-MAX 30732
Useable Case Capaci: 87.795 grain H2O = 5.700 cm³
Cartridge O.A.L. L6: 3.750 inch = 95.25 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-25

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 82 65.68 2381 2619 32551 11539 98.2 1.643
-18.0 84 67.32 2440 2750 34804 11813 98.9 1.599
-16.0 86 68.96 2499 2884 37217 12059 99.4 1.556
-14.0 88 70.61 2557 3020 39799 12275 99.8 1.507
-12.0 90 72.25 2615 3158 42567 12459 100.0 1.459
-10.0 92 73.89 2672 3298 45533 12613 100.0 1.413
-08.0 94 75.53 2729 3439 48715 12757 100.0 1.369
-06.0 96 77.17 2785 3581 52132 12897 100.0 1.328
-04.0 98 78.82 2840 3724 55800 13034 100.0 1.287 ! Near Maximum !
-02.0 100 80.46 2894 3869 59742 13166 100.0 1.248 ! Near Maximum !
+00.0 102 82.10 2949 4016 63943 13295 100.0 1.211 !DANGEROUS LOAD-DO NOT USE!
+02.0 104 83.74 3003 4164 68429 13420 100.0 1.175 !DANGEROUS LOAD-DO NOT USE!
+04.0 106 85.38 3056 4314 73231 13540 100.0 1.140 !DANGEROUS LOAD-DO NOT USE!
+06.0 108 87.03 3109 4465 78376 13656 100.0 1.107 !DANGEROUS LOAD-DO NOT USE!
+08.0 110 88.67 3162 4619 83894 13767 100.0 1.074 !DANGEROUS LOAD-DO NOT USE!
+10.0 112 90.31 3215 4775 89819 13873 100.0 1.043 !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 102 82.10 3050 4296 78040 12856 100.0 1.119 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 102 82.10 2794 3604 50639 13898 99.8 1.333



Cartridge : .300 Weath. Mag.
Bullet : .308, 208, Hornady A-MAX 30732
Useable Case Capaci: 87.795 grain H2O = 5.700 cm³
Cartridge O.A.L. L6: 3.750 inch = 95.25 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-33

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 85 75.04 2298 2438 29513 12004 84.7 1.712
-18.0 88 76.92 2367 2587 31765 12492 86.6 1.664
-16.0 90 78.79 2437 2743 34210 12968 88.4 1.616
-14.0 92 80.67 2508 2905 36869 13428 90.1 1.569
-12.0 94 82.54 2580 3074 39761 13869 91.7 1.512
-10.0 96 84.42 2652 3249 42921 14288 93.1 1.457
-08.0 98 86.30 2726 3431 46368 14681 94.5 1.404
-06.0 100 88.17 2799 3619 50139 15045 95.7 1.352
-04.0 103 90.05 2873 3812 54270 15378 96.8 1.303 ! Near Maximum !
-02.0 105 91.92 2947 4012 58808 15676 97.7 1.255 ! Near Maximum !
+00.0 107 93.80 3022 4218 63801 15935 98.5 1.209 !DANGEROUS LOAD-DO NOT USE!
+02.0 109 95.68 3097 4429 69264 16153 99.1 1.164 !DANGEROUS LOAD-DO NOT USE!
+04.0 111 97.55 3172 4646 75255 16327 99.6 1.121 !DANGEROUS LOAD-DO NOT USE!
+06.0 113 99.43 3246 4867 81850 16453 99.9 1.080 !DANGEROUS LOAD-DO NOT USE!
+08.0 115 101.30 3321 5094 89130 16529 100.0 1.039 !DANGEROUS LOAD-DO NOT USE!
+10.0 118 103.18 3396 5326 97193 16565 100.0 1.000 !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 107 93.80 3200 4729 80578 15460 100.0 1.098 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 107 93.80 2775 3557 49146 15257 90.9 1.354