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| One of Us |
I'd like to ask for some help! I'm about to work up a load for my .300H&H. It's a Winchester M70 Classic with a 24" Krieger barrel. I plan on using Norma's 200gr Oryx bullets in Norma cases (87.5gr water capacity) trimmed to 2.836" length. COAL of 3.6" gives me about 20 thousands of an inch of "bullet jump" with the Oryx bullets. Now, my problem is that there is not a lot of load data out there for the .300H&H and the data I find is rather diverging, stating max velocities of between 2700 FPS and 2950 FPS for a 200 gr bullet using similar powders and barrel length. As I am a cautious man I have so far refrained from trying to reach much higher than 2750 FPS but I am intrigued to find out if there is more to be had without playing it unsafe. I have good acces to Norma and Wihtavuori powders, as I live in Scandinavia, but I can probably also find most of the more common Hodgedon and IMR powders if need be. Could any one help me find a short list of powders likely to give me top velocities at safe safe pressures? Most importantly could I have some directions as to what the true max velocities are likely to be? I am not a beginner when it comes to hand loading so I know I need to start low and work up my loads looking out for pressure signs and so on. Thanks! I owe you a beer! | ||
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One of Us |
Cartridge : .300 H.& H. Mag.
Bullet : .308, 200, Norma ORYX 67639
Useable Case Capaci: 76.443 grain H2O = 4.963 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 24.0 inch = 609.6 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 54570 psi, or 376 MPa
or a maximum loading ratio or filling of 100 %
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 !
213 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
--------------------------------- -----------------------------------------------------------------
Alliant Reloder-26 94.9 71.9 4.66 2842 100.0 54570 12578 1.269 ! Near Maximum !
Norma MRP 95.6 70.3 4.56 2818 99.8 54570 12681 1.265 ! Near Maximum !
ReloadSwiss RS 70 92.7 69.6 4.51 2812 99.9 54570 12305 1.249 ! Near Maximum !
Vihtavuori N560 97.3 70.0 4.54 2811 97.8 54570 12936 1.259 ! Near Maximum !
Accurate MAGPRO 97.8 73.2 4.75 2803 96.5 54570 13036 1.267 ! Near Maximum !
IMR 7828 SSC 96.2 69.6 4.51 2802 98.2 54570 12563 1.248 ! Near Maximum !
SNPE Vectan SP 12 100.0 75.2 4.87 2801 98.5 53411 12790 1.263 ! Near Maximum !
PB Clermont PCL 517 100.0 75.2 4.87 2796 98.4 53093 12796 1.266 ! Near Maximum !
Raufoss RA15 97.5 69.4 4.50 2789 99.1 54570 12459 1.266 ! Near Maximum !
Bofors RP5/NP ~approximation 97.5 69.4 4.50 2789 99.1 54570 12459 1.266 ! Near Maximum !
Alliant Reloder-22 97.5 69.4 4.50 2789 99.1 54570 12459 1.266 ! Near Maximum !
ADI AR 2213 97.1 69.2 4.48 2789 98.1 54570 12432 1.247 ! Near Maximum !
Bofors RP15 100.0 69.7 4.52 2786 99.0 54415 12464 1.268 ! Near Maximum !
Winchester WXR 100.0 69.7 4.52 2786 99.0 54415 12464 1.268 ! Near Maximum !
Ramshot Magnum 98.0 75.2 4.88 2782 99.5 54570 12051 1.257 ! Near Maximum !
Alliant Reloder-23 99.8 68.8 4.46 2762 100.0 54570 11269 1.274 ! Near Maximum !
Rottweil R905 98.7 69.0 4.47 2758 97.7 54570 12141 1.267 ! Near Maximum !
IMR 7828 100.0 68.5 4.44 2753 97.6 51658 12385 1.281
ADI AR 2209 93.8 65.8 4.26 2751 98.9 54570 11774 1.254 ! Near Maximum !
ADI AP 2214 100.0 73.1 4.74 2748 97.9 52133 12240 1.271
Alliant Reloder-19 94.2 66.4 4.30 2747 99.0 54570 11822 1.263 ! Near Maximum !
PB Clermont PCL 518 90.6 65.9 4.27 2745 99.9 54570 11544 1.270 ! Near Maximum !
Bofors RP14 ~approximation 94.9 66.9 4.33 2742 99.0 54570 11745 1.264 ! Near Maximum !
Alliant Reloder-16 91.2 62.6 4.06 2739 100.0 54570 10963 1.277 ! Near Maximum !
Bofors RP5 NT ~approximation 100.0 71.8 4.66 2739 95.9 53500 12164 1.262 ! Near Maximum !
Alliant Reloder-25 100.0 70.1 4.54 2731 100.0 48829 12068 1.319
Somchem S365 91.3 64.0 4.14 2727 100.0 54570 10616 1.284 ! Near Maximum !
Hodgdon H4831 99.5 68.2 4.42 2727 97.4 54570 11690 1.260 ! Near Maximum !
Hodgdon H4831 SC 95.7 68.2 4.42 2727 97.4 54570 11690 1.260 ! Near Maximum !
Raufoss RA4 92.3 65.1 4.22 2726 98.8 54570 11520 1.264 ! Near Maximum !
Bofors RP4 ~approximation 92.3 65.1 4.22 2726 98.8 54570 11520 1.264 ! Near Maximum !
Somchem S385 94.5 67.3 4.36 2714 99.5 54570 11330 1.285 ! Near Maximum !
Winchester Supreme 780 93.4 69.4 4.50 2709 98.9 54570 11305 1.269 ! Near Maximum !
Accurate 3100 97.7 68.8 4.46 2705 100.0 54570 11059 1.302 ! Near Maximum !
Vihtavuori N165 99.7 69.5 4.50 2704 99.3 54570 11106 1.274 ! Near Maximum !
Bofors RP4 NT ~approximation 90.0 64.4 4.17 2704 99.6 54570 11102 1.278 ! Near Maximum !
IMR 4831 93.7 63.3 4.10 2703 100.0 54570 10701 1.289 ! Near Maximum !
Rottweil R904 93.1 64.7 4.19 2699 98.1 54570 11233 1.265 ! Near Maximum !
IMR 4955 Enduron 96.5 66.2 4.29 2693 97.6 54570 11279 1.264 ! Near Maximum !
Hodgdon H4350 91.6 63.2 4.09 2689 99.5 54570 10870 1.268 ! Near Maximum !
Vihtavuori N160 99.5 67.2 4.36 2686 98.0 54570 11056 1.268 ! Near Maximum !
Hodgdon Hybrid 100V 91.7 62.5 4.05 2682 100.0 54570 10094 1.279 ! Near Maximum !
Somchem S361 92.3 69.3 4.49 2673 97.4 54570 11047 1.277 ! Near Maximum !
Bofors RP30 100.0 70.5 4.57 2652 96.6 44773 12432 1.387
Norma MRP 2 100.0 70.5 4.57 2652 96.6 44773 12432 1.387
Vihtavuori N570 100.0 74.3 4.81 2637 90.1 42724 13145 1.405
Lovex S071 100.0 66.6 4.32 2619 99.7 49136 10860 1.368
IMR 7977 Enduron 100.0 69.7 4.52 2601 89.9 52381 10707 1.291
Hodgdon H1000 100.0 69.7 4.52 2592 95.7 43948 11630 1.378
ADI AR 2217 100.0 69.7 4.52 2592 95.7 43948 11630 1.378
Alliant Reloder-33 100.0 76.4 4.95 2556 88.9 39620 12683 1.459
Hodgdon Retumbo 100.0 70.9 4.59 2548 97.5 38878 12146 1.464
ADI AR 2225 100.0 70.9 4.59 2548 97.5 38878 12146 1.464
ReloadSwiss RS 80 100.0 76.4 4.95 2508 88.4 37614 12468 1.492
Lovex D100 100.0 75.8 4.91 2490 84.6 43343 10783 1.411
ADI AR 2218 100.0 75.1 4.86 2483 85.1 37841 12429 1.481
Vihtavuori 24N41 100.0 75.1 4.86 2463 81.3 40093 11127 1.449
Norma 217 100.0 69.4 4.50 2460 94.8 34426 12035 1.557
Vihtavuori N170 100.0 69.7 4.52 2452 87.7 40594 10788 1.475
Hodgdon H870 100.0 72.8 4.72 2425 87.9 34390 11845 1.554
Alliant Reloder-50 100.0 76.2 4.94 2372 83.4 31858 11940 1.626
Bofors 12,7mmRA NC1214 Lot20115087 100.0 74.5 4.83 2334 75.8 34084 10982 1.623
Hodgdon 50BMG 100.0 71.5 4.64 2294 72.9 33265 10196 1.579
Hodgdon US 869 100.0 75.1 4.86 2292 76.9 32912 10262 1.587
SNPE Vectan SP 13 100.0 72.0 4.67 2251 81.6 30359 10164 1.642
Accurate 8700 100.0 73.5 4.76 2217 79.6 29622 10009 1.649
PB Clermont PCL 513/520/9520 100.0 72.0 4.67 2191 78.2 28614 9794 1.681
Vihtavuori 20N29 100.0 75.8 4.91 2190 76.1 28398 10002 1.702
NC A3502 ,test only 100.0 68.9 4.47 2029 54.3 27191 7404 1.734
TLP A 502(RH) ,test only 100.0 68.9 4.47 2006 58.8 25533 7860 1.783
ADI AS 25 BP 100.0 23.7 1.54 1660 100.0 36413 3166 1.662
IMR TrailBoss 100.0 23.7 1.54 1660 100.0 36413 3166 1.662
V1734 7-multiperf ,test only 100.0 68.9 4.47 1451 27.0 14448 3655 2.280
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| new member |
Hi, In order to accurately assess what your rifle is capable of handling, you need to provide your current load and chronographed velocity. This way QL can be calibrated to be far closer to your real world ballistics. QL defaults are often way out! Post your actual figures and we can be more accurate. I hope this helps, Pete | |||
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One of Us |
Work up to 70 grains RL-22/Norma MRP. _______________________ | |||
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| One of Us |
Thanks every one! I did not know QuickLoad could be calibrated using actual loads and velocities from you gun. Interesting! I loaded up some rounds today and went to the range. 65 gr of Norma MRP gave an average velocity of about 2710 FPS (2690 - 2730). 66.5 gr of Norma MRP gave an average velocity of 2760 (2736 - 2785). No signs of excessive pressure. I am not really happy about the extreme spread of the velocities but the 66.5 gr load gave me a five shot group of about .65 MOA. Not sure if I should blame my RCBS Charge master och my Shooting Chrony chronograph for the varying velocities. I guess I'll keep working towards 70 gr of MRP and see when pressure starts to show. Or I could also just be happy with the 66.5 gr load and go hunting. Thanks again every one! I very much appreciate your help! I might just have to buy me a copy of QuickLoad, just not sure I am computer literate enough to use it... | |||
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| one of us |
4831 will give you everything the MRP/Rl22 will. 7828 is also good. If you cannot find one of those 4 powders do well, something's wrong. Just try them, and see which works best. I am not a fan of 200grain myself. Try some 180 Sierra Prohunters. | |||
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one of us |
Cartridge : .300 H.& H. Mag. Bullet : .308, 200, Norma ORYX 67639 Useable Case Capaci: 78.316 grain H2O = 5.085 cm³ Cartridge O.A.L. L6: 3.600 inch = 91.44 mm Barrel Length : 24.0 inch = 609.6 mm Powder : Alliant Reloder-22 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 56.00 2229 2206 28894 9860 90.3 1.676 -18.0 79 57.40 2284 2317 30759 10186 91.6 1.634 -16.0 81 58.80 2340 2431 32748 10503 92.8 1.593 -14.0 82 60.20 2396 2549 34870 10810 93.9 1.553 -12.0 84 61.60 2451 2669 37133 11105 94.9 1.515 -10.0 86 63.00 2507 2792 39549 11387 95.8 1.476 -08.0 88 64.40 2563 2918 42130 11655 96.7 1.437 -06.0 90 65.80 2619 3046 44871 11908 97.4 1.394 -04.0 92 67.20 2675 3177 47766 12144 98.1 1.354 -02.0 94 68.60 2730 3311 50838 12362 98.7 1.315 +00.0 96 70.00 2786 3447 54109 12561 99.1 1.277 ! Near Maximum ! +02.0 98 71.40 2841 3584 57593 12740 99.5 1.241 ! Near Maximum ! +04.0 100 72.80 2896 3724 61309 12898 99.8 1.205 ! Near Maximum ! +06.0 102 74.20 2951 3866 65272 13035 99.9 1.171 !DANGEROUS LOAD-DO NOT USE! +08.0 104 75.60 3005 4010 69503 13148 100.0 1.138 !DANGEROUS LOAD-DO NOT USE! +10.0 106 77.00 3059 4155 74024 13245 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 96 70.00 2916 3777 65217 12189 100.0 1.179 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 96 70.00 2605 3013 43391 12249 93.6 1.406 Cartridge : .300 H.& H. Mag. Bullet : .308, 200, Norma ORYX 67639 Useable Case Capaci: 78.316 grain H2O = 5.085 cm³ Cartridge O.A.L. L6: 3.600 inch = 91.44 mm Barrel Length : 24.0 inch = 609.6 mm Powder : Norma MRP 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 56.00 2218 2184 27623 10030 91.3 1.701 -18.0 76 57.40 2273 2295 29404 10362 92.6 1.659 -16.0 78 58.80 2330 2410 31307 10683 93.8 1.618 -14.0 80 60.20 2386 2528 33335 10992 94.9 1.578 -12.0 82 61.60 2442 2649 35505 11286 95.9 1.538 -10.0 84 63.00 2499 2773 37820 11564 96.8 1.500 -08.0 85 64.40 2555 2900 40299 11826 97.6 1.463 -06.0 87 65.80 2612 3029 42946 12069 98.2 1.421 -04.0 89 67.20 2668 3160 45785 12293 98.8 1.380 -02.0 91 68.60 2724 3294 48819 12496 99.3 1.339 +00.0 93 70.00 2779 3430 52038 12676 99.6 1.300 +02.0 95 71.40 2835 3568 55454 12834 99.9 1.262 ! Near Maximum ! +04.0 97 72.80 2890 3708 59097 12967 100.0 1.226 ! Near Maximum ! +06.0 98 74.20 2944 3849 62986 13077 100.0 1.190 !DANGEROUS LOAD-DO NOT USE! +08.0 100 75.60 2998 3992 67140 13180 100.0 1.157 !DANGEROUS LOAD-DO NOT USE! +10.0 102 77.00 3052 4136 71582 13280 100.0 1.124 !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 93 70.00 2911 3763 63551 12215 100.0 1.195 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 93 70.00 2591 2982 41283 12463 94.5 1.436 Cartridge : .300 H.& H. Mag. Bullet : .308, 200, Norma ORYX 67639 Useable Case Capaci: 78.316 grain H2O = 5.085 cm³ Cartridge O.A.L. L6: 3.600 inch = 91.44 mm Barrel Length : 24.0 inch = 609.6 mm Powder : Hodgdon H4831 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 56.00 2220 2188 30460 9299 88.4 1.638 -18.0 82 57.40 2274 2297 32425 9611 89.7 1.596 -16.0 84 58.80 2329 2410 34519 9916 90.9 1.555 -14.0 86 60.20 2385 2525 36750 10213 92.0 1.515 -12.0 88 61.60 2440 2644 39130 10502 93.1 1.475 -10.0 90 63.00 2495 2765 41668 10781 94.1 1.436 -08.0 92 64.40 2551 2890 44380 11049 95.1 1.394 -06.0 94 65.80 2606 3017 47274 11304 95.9 1.353 -04.0 96 67.20 2662 3147 50357 11547 96.7 1.313 -02.0 98 68.60 2718 3280 53624 11775 97.4 1.275 ! Near Maximum ! +00.0 100 70.00 2773 3416 57106 11989 98.0 1.238 ! Near Maximum ! +02.0 102 71.40 2829 3554 60828 12185 98.6 1.203 ! Near Maximum ! +04.0 104 72.80 2884 3695 64809 12364 99.0 1.169 !DANGEROUS LOAD-DO NOT USE! +06.0 106 74.20 2940 3838 69073 12525 99.4 1.135 !DANGEROUS LOAD-DO NOT USE! +08.0 108 75.60 2995 3984 73644 12667 99.7 1.103 !DANGEROUS LOAD-DO NOT USE! +10.0 110 77.00 3050 4132 78551 12787 99.9 1.072 !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 70.00 2901 3737 67681 11821 100.0 1.151 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 100 70.00 2604 3011 46816 11562 92.0 1.352 Cartridge : .300 H.& H. Mag. Bullet : .308, 200, Norma ORYX 67639 Useable Case Capaci: 78.316 grain H2O = 5.085 cm³ Cartridge O.A.L. L6: 3.600 inch = 91.44 mm Barrel Length : 24.0 inch = 609.6 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 56.00 2215 2179 28519 9722 87.5 1.667 -18.0 82 57.40 2272 2292 30347 10067 88.9 1.625 -16.0 84 58.80 2328 2408 32293 10404 90.3 1.584 -14.0 86 60.20 2386 2527 34373 10732 91.6 1.544 -12.0 88 61.60 2443 2650 36589 11049 92.8 1.504 -10.0 90 63.00 2501 2777 38955 11354 93.9 1.465 -08.0 92 64.40 2558 2907 41480 11645 94.9 1.427 -06.0 94 65.80 2616 3040 44179 11920 95.9 1.385 -04.0 96 67.20 2674 3176 47067 12179 96.7 1.344 -02.0 98 68.60 2732 3315 50155 12421 97.5 1.304 +00.0 100 70.00 2790 3456 53466 12642 98.2 1.266 ! Near Maximum ! +02.0 102 71.40 2848 3601 57014 12844 98.7 1.228 ! Near Maximum ! +04.0 104 72.80 2905 3748 60822 13023 99.2 1.192 ! Near Maximum ! +06.0 106 74.20 2963 3898 64914 13179 99.5 1.158 !DANGEROUS LOAD-DO NOT USE! +08.0 108 75.60 3020 4050 69316 13311 99.8 1.124 !DANGEROUS LOAD-DO NOT USE! +10.0 110 77.00 3077 4205 74060 13418 100.0 1.091 !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 70.00 2932 3818 64905 12366 100.0 1.167 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 100 70.00 2598 2997 43463 12144 91.3 1.391 As usual just my $.02 Paul K | |||
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| One of Us |
You can also use 300 WSM load data. The cases have the same capacity. | |||
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| One of Us |
If you are getting .6" groups at the 2700 fps level I would not obsess over more velocity. My old M70 with its 26" bbl seems to prefer loads a bit below maximum. The animals do not notice the difference. C.G.B. | |||
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| One of Us |
70 grains H4831 and a 200-grain Speer accounted for my first kudu. Like you, I've settled on 180-grainers after deciding the 200's were too hot in my 721. (I prefer the 4831's, but he's in Sweden and RL-22/MRP acts quite the same.) _______________________ | |||
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| one of us |
 +1As usual just my $.02 Paul K | |||
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