7x57 AI loads
- Thread starter Dlallder
- Start date
DrMike
Ballistician
- Nov 8, 2006
- 37,473
- 6,431
Welcome aboard; always glad to see new people posting here. Do you have a particular bullet you are thinking of using? Are there powder restrictions for you? Give us a bit more information and we can run a QL projection that should give you some idea of what the 7X57 AI will do for you.
- Thread starter
- #3
I have RL-16,17, 19, and 22. Have some varget and some IMR 4350. I am willing to use whatever will shoot good and I know that a fantastic load in one gun may not be so good in another. Really want a long range load that will do the job out to 600 yds, maybe 800.
DrMike
Ballistician
- Nov 8, 2006
- 37,473
- 6,431
Code:
Cartridge : 7 x 57 mm Ack. Imp.
Bullet : .284, 150, Nosler Accubond LR 58734 G7
Useable Case Capaci: 54.236 grain H2O = 3.521 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-22
Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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
-10.0 94 47.70 2439 1981 35744 10207 89.0 1.386
-09.0 95 48.23 2469 2030 36950 10362 89.7 1.367
-08.0 96 48.76 2499 2081 38201 10515 90.3 1.347
-07.0 98 49.29 2530 2132 39499 10665 91.0 1.325
-06.0 99 49.82 2561 2184 40845 10813 91.6 1.304
-05.0 100 50.35 2591 2237 42240 10957 92.2 1.283
-04.0 101 50.88 2622 2290 43691 11098 92.8 1.263 ! Near Maximum !
-03.0 102 51.41 2653 2344 45196 11236 93.4 1.243 ! Near Maximum !
-02.0 103 51.94 2684 2400 46759 11370 93.9 1.223 ! Near Maximum !
-01.0 104 52.47 2715 2456 48385 11500 94.5 1.204 ! Near Maximum !
+00.0 105 53.00 2746 2512 50069 11626 95.0 1.184 ! Near Maximum !
+01.0 106 53.53 2778 2570 51828 11749 95.4 1.166 !DANGEROUS LOAD-DO NOT USE!
+02.0 107 54.06 2809 2628 53655 11866 95.9 1.147 !DANGEROUS LOAD-DO NOT USE!
+03.0 108 54.59 2840 2687 55554 11980 96.3 1.129 !DANGEROUS LOAD-DO NOT USE!
+04.0 109 55.12 2872 2746 57532 12088 96.8 1.111 !DANGEROUS LOAD-DO NOT USE!
+05.0 110 55.65 2903 2807 59590 12192 97.2 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 105 53.00 2915 2830 61561 11758 99.4 1.086 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 53.00 2532 2135 40317 10817 86.0 1.309
Code:
Cartridge : 7 x 57 mm Ack. Imp.
Bullet : .284, 150, Nosler Accubond LR 58734 G7
Useable Case Capaci: 54.236 grain H2O = 3.521 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 50250 psi, or 346 MPa
or a maximum loading ratio or filling of 112 %
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 !
12 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-26 103.0 55.4 3.59 2826 99.0 50250 12339 1.176 ! Near Maximum !
Norma MRP 103.3 53.9 3.49 2784 96.6 50250 12034 1.179 ! Near Maximum !
Alliant Reloder-25 111.0 55.2 3.58 2780 98.4 50250 11849 1.174 ! Near Maximum !
ReloadSwiss RS 60 93.0 48.7 3.16 2779 100.0 50250 10996 1.174 ! Near Maximum !
Alliant Reloder-23 108.0 52.8 3.42 2759 99.8 50250 11092 1.183 ! Near Maximum !
ReloadSwiss RS 70 99.3 52.9 3.43 2759 97.0 50250 11653 1.173 ! Near Maximum !
Elcho 17 92.0 48.3 3.13 2758 99.9 50250 10916 1.180 ! Near Maximum !
Alliant Reloder-17 92.0 48.3 3.13 2758 99.9 50250 10916 1.180 ! Near Maximum !
Vihtavuori N560 104.6 53.4 3.46 2756 92.5 50250 11879 1.179 ! Near Maximum !
Bofors RP5/NP ~approximation 105.0 53.1 3.44 2750 95.0 50250 11641 1.182 ! Near Maximum !
Raufoss RA15 105.0 53.1 3.44 2750 95.0 50250 11641 1.182 ! Near Maximum !
Alliant Reloder-22 105.0 53.1 3.44 2750 95.0 50250 11641 1.182 ! Near Maximum !
Bofors RP15 107.8 53.3 3.45 2748 94.8 50250 11635 1.183 ! Near Maximum !
Winchester WXR 107.8 53.3 3.45 2748 94.8 50250 11635 1.183 ! Near Maximum !
Accurate MAGPRO 105.3 56.0 3.63 2747 90.5 50250 11864 1.183 ! Near Maximum !
Somchem S365 99.0 49.2 3.19 2742 100.0 50250 10473 1.191 ! Near Maximum !
SNPE Vectan SP 12 107.5 57.4 3.72 2739 93.2 50250 11763 1.174 ! Near Maximum !
PB Clermont PCL 517 107.7 57.5 3.72 2738 93.0 50250 11769 1.174 ! Near Maximum !
Alliant Reloder-16 98.5 48.0 3.11 2735 99.6 50250 10766 1.191 ! Near Maximum !
IMR 7828 108.7 52.8 3.42 2731 92.7 50250 11484 1.175 ! Near Maximum !
IMR 7828 SSC 102.8 52.8 3.42 2731 92.7 50250 11484 1.175 ! Near Maximum !
ReloadSwiss RS 62 95.6 50.1 3.25 2727 98.8 50250 10937 1.200 ! Near Maximum !
Ramshot Magnum 105.0 57.2 3.70 2719 95.4 50250 11236 1.177 ! Near Maximum !
ADI AR 2213 103.5 52.3 3.39 2716 92.6 50250 11317 1.175 ! Near Maximum !
PB Clermont PCL 518 97.3 50.3 3.26 2716 97.3 50250 10967 1.189 ! Near Maximum !
PB Clermont PCL 511 93.4 49.8 3.22 2715 97.7 50250 10921 1.189 ! Near Maximum !
Ramshot Hunter 96.5 49.8 3.23 2713 97.6 50250 10906 1.190 ! Near Maximum !
Rottweil R905 106.0 52.6 3.41 2708 92.5 50250 11140 1.185 ! Near Maximum !
Bofors RP30 112.0 56.0 3.63 2707 92.6 46617 11860 1.221 ! Near Maximum !
Norma MRP 2 112.0 56.0 3.63 2707 92.6 46617 11860 1.221 ! Near Maximum !
Winchester 760 90.9 48.1 3.12 2703 96.8 50250 10832 1.195 ! Near Maximum !
Hodgdon H414 90.9 48.1 3.12 2703 96.8 50250 10832 1.195 ! Near Maximum !
Alliant Reloder-19 100.9 50.4 3.27 2703 94.9 50250 10976 1.185 ! Near Maximum !
Norma URP 95.9 47.4 3.07 2700 99.0 50250 10579 1.198 ! Near Maximum !
Accurate 4350 95.7 47.8 3.10 2700 99.0 50250 10637 1.216 ! Near Maximum !
Bofors RP19 ~approximation 95.9 47.4 3.07 2700 99.0 50250 10577 1.198 ! Near Maximum !
ADI AR 2209 100.2 49.8 3.23 2698 94.6 50250 10880 1.179 ! Near Maximum !
Bofors RP14 ~approximation 101.6 50.8 3.29 2697 94.8 50250 10896 1.186 ! Near Maximum !
Vihtavuori N550 93.0 47.5 3.08 2696 98.8 50250 10662 1.205 ! Near Maximum !
ADI AP 2214 107.7 55.9 3.62 2694 92.3 50250 11194 1.176 ! Near Maximum !
IMR 4831 100.8 48.2 3.13 2686 99.1 50250 10397 1.208 ! Near Maximum !
Accurate 3100 105.3 52.6 3.41 2679 97.6 50250 10582 1.217 ! Near Maximum !
Lovex S071 111.3 52.6 3.41 2679 97.6 50250 10582 1.217 ! Near Maximum !
Raufoss RA4 98.7 49.3 3.20 2679 94.6 50250 10652 1.187 ! Near Maximum !
Bofors RP4 ~approximation 98.7 49.3 3.20 2679 94.6 50250 10652 1.187 ! Near Maximum !
Norma 204 95.5 49.3 3.20 2679 94.6 50250 10652 1.187 ! Near Maximum !
Vihtavuori N570 112.0 59.0 3.83 2678 84.5 45742 12202 1.230 ! Near Maximum !
Hodgdon Hybrid 100V 98.7 47.7 3.09 2678 99.9 50250 9891 1.194 ! Near Maximum !
Somchem S385 101.3 51.2 3.32 2676 96.0 50250 10637 1.206 ! Near Maximum !
Bofors RP5 NT ~approximation 106.9 54.5 3.53 2674 89.6 50250 10930 1.181 ! Near Maximum !
Hodgdon H4831 106.2 51.6 3.34 2668 92.0 50250 10628 1.184 ! Near Maximum !
Hodgdon H4831 SC 102.1 51.6 3.34 2668 92.0 50250 10628 1.184 ! Near Maximum !
Bofors RP4 NT ~approximation 96.3 48.9 3.17 2664 96.5 50250 10421 1.202 ! Near Maximum !
Vihtavuori N165 106.8 52.8 3.42 2663 95.5 50250 10363 1.192 ! Near Maximum !
Winchester Supreme 780 99.9 52.7 3.41 2662 94.6 50250 10454 1.189 ! Near Maximum !
Hodgdon H1000 112.0 55.4 3.59 2654 91.5 48275 11009 1.198 ! Near Maximum !
ADI AR 2217 112.0 55.4 3.59 2654 91.5 48275 11009 1.198 ! Near Maximum !
Rottweil R903 90.5 44.8 2.90 2652 99.9 50250 9811 1.223 ! Near Maximum !
Lovex S070 95.0 47.0 3.05 2647 97.0 50250 10242 1.215 ! Near Maximum !
Somchem S355 90.3 44.2 2.86 2643 99.8 50250 9759 1.218 ! Near Maximum !
Rottweil R904 99.1 48.8 3.17 2643 93.3 50250 10269 1.193 ! Near Maximum !
IMR 4955 Enduron 102.5 49.9 3.23 2633 92.5 50250 10241 1.193 ! Near Maximum !
Vihtavuori N160 106.0 50.8 3.29 2631 93.1 50250 10101 1.194 ! Near Maximum !
Lovex S065 93.6 45.8 2.97 2629 98.0 50250 9919 1.215 ! Near Maximum !
Rottweil R907 92.5 45.4 2.94 2621 96.1 50250 9952 1.211 ! Near Maximum !
Bofors RP7 92.5 45.4 2.94 2621 96.1 50250 9952 1.211 ! Near Maximum !
Somchem S361 98.2 52.3 3.39 2613 92.1 50250 10031 1.205 ! Near Maximum !
Alliant Reloder-33 112.0 60.7 3.94 2595 83.0 42854 11719 1.271
Hodgdon Retumbo 112.0 56.3 3.65 2584 92.9 41349 11559 1.288
ADI AR 2225 112.0 56.3 3.65 2584 92.9 41349 11559 1.288
Lovex D100 112.0 60.3 3.90 2560 79.8 48532 9969 1.214 ! Near Maximum !
IMR 7977 Enduron 107.0 52.9 3.43 2548 83.1 50250 9441 1.201 ! Near Maximum !
Code:
Cartridge : 7 x 57 mm Ack. Imp.
Bullet : .284, 162, Hornady ELD-M 28403 G7
Useable Case Capaci: 53.010 grain H2O = 3.442 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-22
Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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
-10.0 93 46.08 2358 2000 35974 10093 90.4 1.431
-09.0 94 46.59 2387 2049 37174 10241 91.1 1.411
-08.0 95 47.10 2416 2099 38419 10386 91.7 1.389
-07.0 96 47.62 2445 2150 39708 10528 92.3 1.367
-06.0 97 48.13 2474 2201 41046 10667 92.9 1.346
-05.0 98 48.64 2503 2253 42432 10803 93.4 1.325
-04.0 99 49.15 2532 2306 43870 10936 94.0 1.304 ! Near Maximum !
-03.0 101 49.66 2561 2359 45361 11065 94.5 1.284 ! Near Maximum !
-02.0 102 50.18 2590 2414 46909 11190 95.0 1.264 ! Near Maximum !
-01.0 103 50.69 2620 2469 48518 11312 95.5 1.244 ! Near Maximum !
+00.0 104 51.20 2649 2524 50186 11430 95.9 1.225 ! Near Maximum !
+01.0 105 51.71 2679 2581 51921 11544 96.4 1.205 !DANGEROUS LOAD-DO NOT USE!
+02.0 106 52.22 2708 2638 53724 11653 96.8 1.187 !DANGEROUS LOAD-DO NOT USE!
+03.0 107 52.74 2737 2696 55596 11759 97.1 1.168 !DANGEROUS LOAD-DO NOT USE!
+04.0 108 53.25 2767 2754 57544 11859 97.5 1.150 !DANGEROUS LOAD-DO NOT USE!
+05.0 109 53.76 2797 2813 59571 11954 97.9 1.132 !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 51.20 2805 2830 61679 11460 99.7 1.123 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 104 51.20 2448 2156 40368 10727 87.5 1.353
Code:
Cartridge : 7 x 57 mm Ack. Imp.
Bullet : .284, 162, Hornady ELD-M 28403 G7
Useable Case Capaci: 53.010 grain H2O = 3.442 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 50250 psi, or 346 MPa
or a maximum loading ratio or filling of 112 %
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 !
16 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-26 101.8 53.5 3.46 2724 99.5 50250 12040 1.217 ! Near Maximum !
Norma MRP 102.0 52.0 3.37 2684 97.4 50250 11801 1.220 ! Near Maximum !
Alliant Reloder-25 109.8 53.3 3.46 2682 99.0 50250 11592 1.214 ! Near Maximum !
ReloadSwiss RS 60 91.8 47.0 3.05 2671 100.0 50250 10648 1.215 ! Near Maximum !
ReloadSwiss RS 70 98.1 51.1 3.31 2661 97.8 50250 11428 1.213 ! Near Maximum !
Vihtavuori N560 103.4 51.6 3.34 2659 93.6 50250 11706 1.220 ! Near Maximum !
Alliant Reloder-23 106.6 51.0 3.30 2655 100.0 50250 10780 1.225 ! Near Maximum !
Bofors RP30 112.0 54.7 3.55 2653 94.5 48724 11856 1.237 ! Near Maximum !
Norma MRP 2 112.0 54.7 3.55 2653 94.5 48724 11856 1.237 ! Near Maximum !
Accurate MAGPRO 104.1 54.1 3.50 2651 91.7 50250 11716 1.224 ! Near Maximum !
Alliant Reloder-17 90.8 46.5 3.02 2651 100.0 50250 10576 1.223 ! Near Maximum !
Elcho 17 90.8 46.5 3.02 2651 100.0 50250 10576 1.223 ! Near Maximum !
Bofors RP5/NP ~approximation 103.7 51.2 3.32 2651 95.9 50250 11436 1.224 ! Near Maximum !
Raufoss RA15 103.7 51.2 3.32 2651 95.9 50250 11436 1.224 ! Near Maximum !
Alliant Reloder-22 103.7 51.2 3.32 2651 95.9 50250 11436 1.224 ! Near Maximum !
Bofors RP15 106.5 51.5 3.33 2649 95.8 50250 11435 1.224 ! Near Maximum !
Winchester WXR 106.5 51.5 3.33 2649 95.8 50250 11435 1.224 ! Near Maximum !
SNPE Vectan SP 12 106.4 55.5 3.60 2648 94.4 50250 11622 1.213 ! Near Maximum !
PB Clermont PCL 517 106.6 55.6 3.60 2648 94.3 50250 11631 1.213 ! Near Maximum !
IMR 7828 107.5 51.0 3.31 2637 93.9 50250 11321 1.215 ! Near Maximum !
IMR 7828 SSC 101.7 51.0 3.31 2637 93.9 50250 11321 1.215 ! Near Maximum !
Vihtavuori N570 112.0 57.7 3.74 2633 87.1 47705 12345 1.245 ! Near Maximum !
Somchem S365 97.6 47.4 3.07 2632 100.0 50250 10133 1.235 ! Near Maximum !
Alliant Reloder-16 97.2 46.2 3.00 2627 99.9 50250 10445 1.235 ! Near Maximum !
Ramshot Magnum 103.9 55.3 3.58 2627 96.4 50250 11065 1.217 ! Near Maximum !
ReloadSwiss RS 62 94.3 48.3 3.13 2622 99.3 50250 10649 1.243 ! Near Maximum !
ADI AR 2213 102.4 50.6 3.28 2621 93.7 50250 11161 1.215 ! Near Maximum !
PB Clermont PCL 518 96.1 48.5 3.14 2613 98.0 50250 10726 1.231 ! Near Maximum !
PB Clermont PCL 511 92.2 48.0 3.11 2611 98.3 50250 10671 1.233 ! Near Maximum !
Rottweil R905 104.7 50.8 3.29 2611 93.6 50250 10967 1.227 ! Near Maximum !
Ramshot Hunter 95.3 48.1 3.11 2610 98.3 50250 10656 1.233 ! Near Maximum !
ADI AP 2214 106.6 54.1 3.50 2604 93.5 50250 11069 1.215 ! Near Maximum !
Alliant Reloder-19 99.6 48.7 3.15 2604 95.8 50250 10777 1.227 ! Near Maximum !
ADI AR 2217 112.0 54.1 3.51 2601 93.5 50166 11029 1.216 ! Near Maximum !
Hodgdon H1000 112.0 54.1 3.51 2601 93.5 50166 11029 1.216 ! Near Maximum !
ADI AR 2209 99.0 48.1 3.12 2600 95.6 50250 10691 1.221 ! Near Maximum !
Bofors RP14 ~approximation 100.4 49.0 3.18 2598 95.7 50250 10701 1.227 ! Near Maximum !
Norma URP 94.6 45.7 2.96 2596 99.4 50250 10298 1.241 ! Near Maximum !
Accurate 4350 94.4 46.1 2.99 2595 99.4 50250 10345 1.260 ! Near Maximum !
Bofors RP19 ~approximation 94.6 45.7 2.96 2595 99.4 50250 10296 1.241 ! Near Maximum !
Vihtavuori N550 91.7 45.8 2.97 2593 99.3 50250 10387 1.248 ! Near Maximum !
Bofors RP5 NT ~approximation 105.7 52.7 3.41 2582 90.9 50250 10816 1.221 ! Near Maximum !
IMR 4831 99.4 46.5 3.01 2582 99.5 50250 10117 1.251 ! Near Maximum !
Raufoss RA4 97.4 47.6 3.09 2579 95.5 50250 10457 1.230 ! Near Maximum !
Norma 204 94.4 47.6 3.09 2579 95.5 50250 10457 1.230 ! Near Maximum !
Bofors RP4 ~approximation 97.4 47.6 3.09 2579 95.5 50250 10457 1.230 ! Near Maximum !
Accurate 3100 103.9 50.8 3.29 2579 98.3 50250 10346 1.260 ! Near Maximum !
Lovex S071 109.9 50.8 3.29 2579 98.3 50250 10346 1.260 ! Near Maximum !
Somchem S385 100.1 49.4 3.20 2577 96.8 50250 10423 1.249 ! Near Maximum !
Hodgdon H4831 SC 100.9 49.9 3.23 2572 93.1 50250 10475 1.226 ! Near Maximum !
Hodgdon H4831 105.0 49.9 3.23 2572 93.1 50250 10475 1.226 ! Near Maximum !
Hodgdon Hybrid 100V 97.4 46.0 2.98 2572 100.0 50250 9585 1.238 ! Near Maximum !
Winchester Supreme 780 98.8 50.9 3.30 2566 95.5 50250 10282 1.230 ! Near Maximum !
Vihtavuori N165 105.6 51.0 3.31 2566 96.4 50250 10173 1.235 ! Near Maximum !
Bofors RP4 NT ~approximation 95.1 47.2 3.06 2564 97.2 50250 10204 1.244 ! Near Maximum !
Alliant Reloder-33 112.0 59.4 3.85 2555 85.7 44680 11899 1.286 ! Near Maximum !
Lovex S070 93.8 45.4 2.94 2547 97.7 50250 10013 1.257 ! Near Maximum !
Rottweil R904 97.9 47.2 3.06 2546 94.2 50250 10093 1.235 ! Near Maximum !
Hodgdon Retumbo 112.0 55.0 3.57 2539 95.1 43029 11601 1.305
ADI AR 2225 112.0 55.0 3.57 2539 95.1 43029 11601 1.305
IMR 4955 Enduron 101.3 48.1 3.12 2536 93.5 50250 10078 1.235 ! Near Maximum !
Vihtavuori N160 104.8 49.1 3.18 2534 94.1 50250 9935 1.236 ! Near Maximum !
Lovex S065 92.5 44.2 2.86 2528 98.6 50250 9680 1.259 ! Near Maximum !
Bofors RP7 91.4 43.8 2.84 2522 96.9 50250 9744 1.253 ! Near Maximum !
Rottweil R907 91.4 43.8 2.84 2522 96.9 50250 9744 1.253 ! Near Maximum !
Somchem S361 97.1 50.5 3.28 2519 93.2 50250 9881 1.247 ! Near Maximum !
Lovex D100 111.9 58.8 3.81 2506 81.9 50250 10064 1.235 ! Near Maximum !
ReloadSwiss RS 80 112.0 59.4 3.85 2503 85.0 42669 11669 1.314
ADI AR 2218 112.0 58.3 3.78 2473 81.1 43852 11489 1.300 ! Near Maximum !
Vihtavuori 24N41 112.0 58.3 3.78 2471 78.3 46624 10361 1.270 ! Near Maximum !
IMR 7977 Enduron 105.9 51.2 3.32 2459 84.4 50250 9363 1.242 ! Near Maximum !
Vihtavuori N170 112.0 54.1 3.51 2454 84.9 44758 10144 1.313 ! Near Maximum !- Thread starter
- #5
montanacruiser
Beginner
- Dec 30, 2024
- 4
- 2
Hey, first time poster joined as I inherited a 7x57 AI also on a modern action. The reload data posted is super helpful, going through my Dad’s notes he was using IMR 4350/ 53grain/ Nosler 100 Partition Spitzer 150grain #16326 and IMR4350 Nosler 100 Solid Base Boat Tail Ballistic Tip 140grain #39587.
Would it be possible to get a work up for these combos? These are the only notes I have after he passed and would like to load some ammo for this rifle.
Thanks!
Would it be possible to get a work up for these combos? These are the only notes I have after he passed and would like to load some ammo for this rifle.
Thanks!
DrMike
Ballistician
- Nov 8, 2006
- 37,473
- 6,431
Code:
Cartridge : 7 x 57 mm Ack. Imp.
Bullet : .284, 150, Nosler PART SP 16326
Useable Case Capaci: 56.066 grain H2O = 3.640 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 4350
Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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
-10.0 85 43.56 2385 1894 36966 9244 91.8 1.379
-09.0 86 44.04 2410 1935 38076 9367 92.3 1.359
-08.0 87 44.53 2436 1976 39213 9488 92.8 1.341
-07.0 88 45.01 2462 2018 40378 9607 93.3 1.322
-06.0 89 45.50 2487 2061 41572 9725 93.7 1.304
-05.0 89 45.98 2513 2103 42797 9840 94.2 1.286
-04.0 90 46.46 2539 2146 44058 9953 94.6 1.269 ! Near Maximum !
-03.0 91 46.95 2564 2190 45356 10064 95.0 1.252 ! Near Maximum !
-02.0 92 47.43 2590 2234 46691 10173 95.4 1.235 ! Near Maximum !
-01.0 93 47.92 2615 2278 48066 10279 95.8 1.218 ! Near Maximum !
+00.0 94 48.40 2641 2323 49481 10382 96.2 1.202 ! Near Maximum !
+01.0 95 48.88 2667 2369 50939 10483 96.5 1.185 !DANGEROUS LOAD-DO NOT USE!
+02.0 96 49.37 2692 2414 52439 10582 96.9 1.170 !DANGEROUS LOAD-DO NOT USE!
+03.0 97 49.85 2718 2460 53984 10677 97.2 1.154 !DANGEROUS LOAD-DO NOT USE!
+04.0 98 50.34 2743 2507 55575 10770 97.5 1.139 !DANGEROUS LOAD-DO NOT USE!
+05.0 99 50.82 2769 2553 57214 10859 97.8 1.124 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 94 48.40 2709 2445 53826 10463 98.3 1.157 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 94 48.40 2564 2190 45183 10187 93.2 1.252 ! Near Maximum !montanacruiser
Beginner
- Dec 30, 2024
- 4
- 2
Thank you so much!! I appreciate it!
DrMike
Ballistician
- Nov 8, 2006
- 37,473
- 6,431
If you up maximum chamber pressure to 64K psi, as would be suitable for a modern action, you get the following values:
Obviously, this is a pretty good boost in velocity. Your Dad's load was near what this shows.
Code:
Cartridge : 7 x 57 mm Ack. Imp.
Bullet : .284, 150, Nosler PART SP 16326
Useable Case Capaci: 56.066 grain H2O = 3.640 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 4350
Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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
-10.0 92 47.16 2575 2209 45936 10112 95.2 1.244
-09.0 93 47.68 2603 2257 47402 10228 95.6 1.226
-08.0 94 48.21 2631 2305 48915 10342 96.0 1.208
-07.0 95 48.73 2659 2354 50476 10452 96.4 1.190
-06.0 96 49.26 2686 2404 52088 10559 96.8 1.173
-05.0 97 49.78 2714 2453 53751 10663 97.1 1.156
-04.0 98 50.30 2742 2504 55468 10764 97.5 1.140 ! Near Maximum !
-03.0 99 50.83 2769 2554 57241 10861 97.8 1.123 ! Near Maximum !
-02.0 100 51.35 2797 2605 59073 10955 98.1 1.108 ! Near Maximum !
-01.0 101 51.88 2824 2657 60964 11044 98.3 1.092 ! Near Maximum !
+00.0 102 52.40 2852 2709 62919 11131 98.6 1.076 ! Near Maximum !
+01.0 103 52.92 2879 2761 64939 11213 98.8 1.061 !DANGEROUS LOAD-DO NOT USE!
+02.0 104 53.45 2907 2814 67026 11291 99.0 1.046 !DANGEROUS LOAD-DO NOT USE!
+03.0 105 53.97 2934 2867 69185 11365 99.2 1.032 !DANGEROUS LOAD-DO NOT USE!
+04.0 106 54.50 2961 2921 71417 11435 99.4 1.017 !DANGEROUS LOAD-DO NOT USE!
+05.0 107 55.02 2989 2975 73726 11501 99.5 1.003 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 102 52.40 2916 2832 68424 11066 99.7 1.038 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 102 52.40 2777 2569 57474 11064 96.4 1.120 ! Near Maximum !Obviously, this is a pretty good boost in velocity. Your Dad's load was near what this shows.
DrMike
Ballistician
- Nov 8, 2006
- 37,473
- 6,431
As stated to another post, I don't have the solid base bullet in my data base. I do have the BT, and I've provided you the read out for a maximum chamber pressure of 64K psi, which should be suitable for a modern action.
Cartridge : 7 x 57 mm Ack. Imp.
Bullet : .284, 140, Nosler BalTip 28140
Useable Case Capaci: 55.702 grain H2O = 3.617 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 4350
Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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
-10.0 93 47.70 2646 2176 45595 10005 94.0 1.212
-09.0 94 48.23 2675 2225 47080 10125 94.5 1.194
-08.0 95 48.76 2704 2273 48612 10242 94.9 1.176
-07.0 97 49.29 2733 2322 50195 10356 95.4 1.159
-06.0 98 49.82 2762 2372 51831 10467 95.8 1.142
-05.0 99 50.35 2791 2422 53522 10575 96.2 1.125
-04.0 100 50.88 2820 2473 55269 10680 96.6 1.108 ! Near Maximum !
-03.0 101 51.41 2850 2524 57076 10782 96.9 1.092 ! Near Maximum !
-02.0 102 51.94 2879 2576 58944 10880 97.3 1.077 ! Near Maximum !
-01.0 103 52.47 2908 2628 60876 10974 97.6 1.061 ! Near Maximum !
+00.0 104 53.00 2937 2681 62875 11065 97.9 1.046 ! Near Maximum !
+01.0 105 53.53 2966 2734 64943 11152 98.2 1.031 !DANGEROUS LOAD-DO NOT USE!
+02.0 106 54.06 2994 2787 67084 11235 98.4 1.016 !DANGEROUS LOAD-DO NOT USE!
+03.0 107 54.59 3023 2842 69301 11314 98.7 1.001 !DANGEROUS LOAD-DO NOT USE!
+04.0 108 55.12 3052 2896 71596 11388 98.9 0.987 !DANGEROUS LOAD-DO NOT USE!
+05.0 109 55.65 3081 2951 73974 11459 99.1 0.973 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 104 53.00 3006 2809 68472 11047 99.4 1.008 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 104 53.00 2856 2536 57353 10955 95.5 1.089 ! Near Maximum !
Cartridge : 7 x 57 mm Ack. Imp.
Bullet : .284, 140, Nosler BalTip 28140
Useable Case Capaci: 55.702 grain H2O = 3.617 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 4350
Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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
-10.0 93 47.70 2646 2176 45595 10005 94.0 1.212
-09.0 94 48.23 2675 2225 47080 10125 94.5 1.194
-08.0 95 48.76 2704 2273 48612 10242 94.9 1.176
-07.0 97 49.29 2733 2322 50195 10356 95.4 1.159
-06.0 98 49.82 2762 2372 51831 10467 95.8 1.142
-05.0 99 50.35 2791 2422 53522 10575 96.2 1.125
-04.0 100 50.88 2820 2473 55269 10680 96.6 1.108 ! Near Maximum !
-03.0 101 51.41 2850 2524 57076 10782 96.9 1.092 ! Near Maximum !
-02.0 102 51.94 2879 2576 58944 10880 97.3 1.077 ! Near Maximum !
-01.0 103 52.47 2908 2628 60876 10974 97.6 1.061 ! Near Maximum !
+00.0 104 53.00 2937 2681 62875 11065 97.9 1.046 ! Near Maximum !
+01.0 105 53.53 2966 2734 64943 11152 98.2 1.031 !DANGEROUS LOAD-DO NOT USE!
+02.0 106 54.06 2994 2787 67084 11235 98.4 1.016 !DANGEROUS LOAD-DO NOT USE!
+03.0 107 54.59 3023 2842 69301 11314 98.7 1.001 !DANGEROUS LOAD-DO NOT USE!
+04.0 108 55.12 3052 2896 71596 11388 98.9 0.987 !DANGEROUS LOAD-DO NOT USE!
+05.0 109 55.65 3081 2951 73974 11459 99.1 0.973 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 104 53.00 3006 2809 68472 11047 99.4 1.008 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 104 53.00 2856 2536 57353 10955 95.5 1.089 ! Near Maximum !
montanacruiser
Beginner
- Dec 30, 2024
- 4
- 2
So if I am reading this correctly he was +01.0 and is probably a bit hot for this combo on both bullets?
DrMike
Ballistician
- Nov 8, 2006
- 37,473
- 6,431
If he used these lots of propellant and these lots of bullets, he may have been a tad hot. However, it is possible he worked up the load in his firing system and saw no signs of pressure, indicating that the load was quite safe for him. This is a projection based upon mathmatical calculations given the physical parameters in deriving the data. Use these as guidelines and not as definitive data for your rifle. Work the load in logical increments, ensuring that the loads are safe in your rifle with these components. Each time you begin with new components, work up to ensure you have a safe load. There are changes from time-to-time in propellants, bullet metallurgy, case metallurgy, etc. These need to be taken into account.
After doing a bit of comparison between the 7x57 and 7-08, it seems the 7x57 cartridge case has a greater capacity for powder than the 7-08. It would seem feasible that with a modern action one could use 7-08 load data in the 7x57. I've been giving it a try and it works just fine. Main rifle for the tests is a Winchester M70 XTR Featherweight. Loads were later tried in a Ruger #1A and a custom based on a commercial FN Mauser action. All three rifles took the load without any problem. Accuracy was best in the M70 and the Ruger was the least accurate but groups were mostly one inch on average. The Mauser was close to the M70 but there was a problem with the action I had forgotten about when I had the rifle built. The "modern loads had nothing to do with the problem as it was happening when the rifle was a .270 Win. The action would lock up when firing on an intermittent basis. It might happen after ten rounds or I might shoot 100 time and then it would lock up. I'd gotten that rifle as part of a trade and I didn't know about the problem until one day on a deer hunt. I took a shot at a deer and definitely missed. when I tried to work the bolt to chamber another round, it wouldn't open. I finally got it open and shot off the remaining rounds in the magazine without a problem. Later one, I was running some new loads I'd made up and it did it again. The gun shoots just fine, is very accurate but I have no idea if it's gonna lock up on me again if I take it on a hunt. I'd take t to my gunsmith but he passed away and most gunsmiths around town are a couple of years behind in their work. Probably the quickest fix would be to find another complete receiver and make a switch.
Paul B.
Paul B.
montanacruiser
Beginner
- Dec 30, 2024
- 4
- 2
What loads are working best for you?
Welcome to the forum. Great bunch of guys here with a ton of knowledge to share. Enjoy!
Probably the best load id is 48.5 gr. RL17, 150 gr. Nosler Partition. Winchester brass and WLR primer. That load is absolute max so start at least two gr. below and work up The load is almost a bit much in my Winchester M70 XTR Featherweight but the temp that day was about 110 in the shade. Velocity 2800FPS.
Also 49.0 gr. W760 and the 140 gr. Nosler Ballistic tip was ok but slightly warmish on a 105 degree day. Velocity 2880 FPS It gets hotter'n hell in Tucson during the summer when I do load work ups.
Last hunt did was for elk with a .35 Whelen. Load worked up on a 110 day and shot the elk at 14 above zero. If hunting at more moderate temps, dropping back to 47.5 or even 47.0 gr. RL17 would still give accurate safe hunting loads. Keep it smple and use 7-08 data.
