7x57 Loads

[JD338]

Mike, if you would be so inclined could you please show me some 175 and 160 data for the little rifle. I appreciate it a ton. Alliant showed almost 2600 with a 175 using RL22. I kinda think a 160 at around 2600 should be possible. It would make a sweet rifle with 160 PTs. I'm pretty jealous of my boy, that rifle looks like so much fun to handle!

He wouldn't even trade me for the Whelen, do you believe that? Dang boy won't hardly have anything to do with a rifle that doesn't have Winchester stamped on it.

Scotty is creating a monster! :mrgreen:

JD338

 

[Oldtrader3]

You can do better than that! Just get some 160 Partitions with 48.0 grains of IMR 7828 ssc and run that 7x57 Mauser out to 2500 fps. Now you are in elk country for many people now.

 

[DrMike]

I know how much you like Alliant powders, here are a few loads using RL19 and RL22.

Cartridge : 7 x 57 mm Mauser (SAAMI)
Bullet : .284, 160, Nosler PART SP 16327
Useable Case Capaci: 52.354 grain H2O = 3.399 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-19

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 38.40 2054 1498 26390 7974 83.3 1.617
-18.0 82 39.36 2105 1574 28051 8268 84.7 1.576
-16.0 84 40.32 2157 1653 29823 8560 86.1 1.536
-14.0 86 41.28 2209 1734 31704 8847 87.4 1.497
-12.0 88 42.24 2262 1818 33707 9130 88.6 1.459
-10.0 90 43.20 2315 1904 35838 9406 89.9 1.421
-08.0 92 44.16 2368 1992 38109 9676 91.0 1.382
-06.0 93 45.12 2421 2082 40530 9938 92.1 1.343
-04.0 95 46.08 2475 2175 43111 10191 93.1 1.304
-02.0 97 47.04 2528 2271 45866 10435 94.1 1.266 ! Near Maximum !
+00.0 99 48.00 2582 2368 48808 10668 95.0 1.230 ! Near Maximum !
+02.0 101 48.96 2636 2468 51954 10889 95.8 1.195 !DANGEROUS LOAD-DO NOT USE!
+04.0 103 49.92 2689 2570 55322 11099 96.6 1.161 !DANGEROUS LOAD-DO NOT USE!
+06.0 105 50.88 2743 2674 58928 11294 97.3 1.129 !DANGEROUS LOAD-DO NOT USE!
+08.0 107 51.84 2797 2780 62795 11476 97.9 1.097 !DANGEROUS LOAD-DO NOT USE!
+10.0 109 52.80 2851 2888 66948 11642 98.4 1.066 !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 48.00 2723 2635 58646 10810 99.2 1.137 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 99 48.00 2403 2052 40027 10006 87.0 1.347


Cartridge : 7 x 57 mm Mauser (SAAMI)
Bullet : .284, 160, Nosler AccuBond 54932
Useable Case Capaci: 50.327 grain H2O = 3.268 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-19

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 81 37.60 2048 1490 26582 7730 83.0 1.615
-18.0 83 38.54 2100 1566 28277 8017 84.4 1.573
-16.0 85 39.48 2152 1645 30079 8300 85.8 1.533
-14.0 87 40.42 2204 1726 31999 8579 87.1 1.493
-12.0 89 41.36 2257 1810 34045 8854 88.4 1.454
-10.0 91 42.30 2310 1896 36225 9122 89.6 1.417
-08.0 93 43.24 2364 1985 38551 9384 90.8 1.376
-06.0 95 44.18 2417 2076 41035 9638 91.9 1.337
-04.0 97 45.12 2471 2169 43687 9884 92.9 1.298 ! Near Maximum !
-02.0 99 46.06 2525 2265 46523 10120 93.9 1.260 ! Near Maximum !
+00.0 101 47.00 2579 2363 49556 10346 94.8 1.224 ! Near Maximum !
+02.0 103 47.94 2633 2463 52807 10560 95.7 1.188 !DANGEROUS LOAD-DO NOT USE!
+04.0 105 48.88 2688 2566 56292 10762 96.5 1.155 !DANGEROUS LOAD-DO NOT USE!
+06.0 107 49.82 2742 2671 60034 10950 97.2 1.122 !DANGEROUS LOAD-DO NOT USE!
+08.0 109 50.76 2796 2778 64057 11125 97.8 1.090 !DANGEROUS LOAD-DO NOT USE!
+10.0 111 51.70 2851 2888 68384 11284 98.3 1.059 !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 101 47.00 2721 2631 59607 10488 99.2 1.131 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 101 47.00 2400 2046 40641 9698 86.7 1.340

Cartridge : 7 x 57 mm Mauser (SAAMI)
Bullet : .284, 160, Nosler AccuBond 54932
Useable Case Capaci: 50.327 grain H2O = 3.268 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 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 84 39.60 2050 1493 25563 8103 81.6 1.632
-18.0 87 40.59 2105 1575 27270 8424 83.2 1.589
-16.0 89 41.58 2161 1660 29099 8741 84.8 1.547
-14.0 91 42.57 2218 1748 31060 9052 86.3 1.506
-12.0 93 43.56 2275 1839 33165 9358 87.7 1.465
-10.0 95 44.55 2333 1933 35425 9656 89.1 1.425
-08.0 97 45.54 2391 2030 37854 9946 90.4 1.385
-06.0 99 46.53 2449 2131 40469 10225 91.7 1.341
-04.0 101 47.52 2508 2234 43285 10493 92.9 1.299
-02.0 103 48.51 2567 2341 46321 10748 94.0 1.258 ! Near Maximum !
+00.0 106 49.50 2626 2450 49600 10989 95.0 1.219 ! Near Maximum !
+02.0 108 50.49 2686 2563 53148 11214 95.9 1.181 !DANGEROUS LOAD-DO NOT USE!
+04.0 110 51.48 2746 2678 56990 11423 96.8 1.144 !DANGEROUS LOAD-DO NOT USE!
+06.0 112 52.47 2806 2796 61158 11613 97.5 1.108 !DANGEROUS LOAD-DO NOT USE!
+08.0 114 53.46 2866 2918 65688 11783 98.2 1.073 !DANGEROUS LOAD-DO NOT USE!
+10.0 116 54.45 2926 3042 70623 11933 98.7 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 106 49.50 2787 2759 60959 11098 99.4 1.118 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 106 49.50 2421 2083 39976 10236 86.0 1.347

Cartridge : 7 x 57 mm Mauser (SAAMI)
Bullet : .284, 160, Nosler PART SP 16327
Useable Case Capaci: 52.354 grain H2O = 3.399 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 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 40.40 2054 1499 25328 8348 81.9 1.637
-18.0 85 41.41 2109 1580 27000 8677 83.5 1.594
-16.0 87 42.42 2165 1665 28789 9002 85.0 1.552
-14.0 89 43.43 2221 1752 30704 9322 86.5 1.512
-12.0 91 44.44 2277 1843 32753 9637 88.0 1.472
-10.0 93 45.45 2335 1936 34953 9944 89.3 1.432
-08.0 95 46.46 2392 2033 37314 10241 90.6 1.394
-06.0 97 47.47 2450 2132 39849 10529 91.9 1.350
-04.0 99 48.48 2508 2235 42574 10806 93.0 1.308
-02.0 101 49.49 2567 2340 45506 11069 94.1 1.268 ! Near Maximum !
+00.0 104 50.50 2625 2449 48665 11319 95.1 1.229 ! Near Maximum !
+02.0 106 51.51 2684 2560 52074 11553 96.0 1.191 !DANGEROUS LOAD-DO NOT USE!
+04.0 108 52.52 2743 2674 55754 11769 96.8 1.154 !DANGEROUS LOAD-DO NOT USE!
+06.0 110 53.53 2803 2791 59738 11968 97.6 1.118 !DANGEROUS LOAD-DO NOT USE!
+08.0 112 54.54 2862 2910 64054 12148 98.2 1.084 !DANGEROUS LOAD-DO NOT USE!
+10.0 114 55.55 2922 3032 68739 12306 98.8 1.051 !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 50.50 2785 2756 59797 11432 99.5 1.127 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 104 50.50 2422 2084 39207 10546 86.2 1.357

 

[DrMike]

Dang boy won't hardly have anything to do with a rifle that doesn't have Winchester stamped on it.

Smart lad; he knows quality when he sees it.

 

[DrMike]

Here's some data with the 175 PT.

Cartridge : 7 x 57 mm Mauser (SAAMI)
Bullet : .284, 175, Nosler PART SP 35645
Useable Case Capaci: 50.900 grain H2O = 3.305 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-19

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 36.80 1972 1511 26606 7857 85.2 1.683
-18.0 80 37.72 2021 1587 28266 8138 86.6 1.640
-16.0 82 38.64 2070 1665 30030 8415 87.9 1.598
-14.0 84 39.56 2120 1746 31904 8687 89.1 1.557
-12.0 86 40.48 2169 1828 33895 8955 90.3 1.518
-10.0 88 41.40 2219 1913 36012 9215 91.4 1.479
-08.0 90 42.32 2269 2000 38264 9469 92.5 1.438
-06.0 92 43.24 2319 2089 40662 9715 93.5 1.397
-04.0 94 44.16 2369 2180 43214 9951 94.4 1.358
-02.0 96 45.08 2419 2274 45934 10178 95.3 1.320 ! Near Maximum !
+00.0 98 46.00 2469 2369 48829 10395 96.1 1.283 ! Near Maximum !
+02.0 100 46.92 2519 2466 51931 10599 96.8 1.247 !DANGEROUS LOAD-DO NOT USE!
+04.0 102 47.84 2570 2566 55238 10792 97.4 1.212 !DANGEROUS LOAD-DO NOT USE!
+06.0 104 48.76 2620 2667 58774 10971 98.0 1.179 !DANGEROUS LOAD-DO NOT USE!
+08.0 106 49.68 2670 2770 62545 11137 98.5 1.146 !DANGEROUS LOAD-DO NOT USE!
+10.0 108 50.60 2720 2875 66614 11287 99.0 1.115 !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 46.00 2598 2623 58596 10439 99.6 1.187 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 98 46.00 2304 2062 40033 9834 88.6 1.404

Cartridge : 7 x 57 mm Mauser (SAAMI)
Bullet : .284, 175, Nosler PART SP 35645
Useable Case Capaci: 50.900 grain H2O = 3.305 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 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 38.80 1981 1524 25703 8280 84.2 1.697
-18.0 84 39.77 2033 1606 27386 8593 85.7 1.653
-16.0 86 40.74 2086 1690 29186 8902 87.1 1.610
-14.0 88 41.71 2139 1778 31108 9205 88.5 1.567
-12.0 90 42.68 2192 1868 33169 9501 89.8 1.526
-10.0 92 43.65 2246 1960 35374 9788 91.1 1.486
-08.0 94 44.62 2300 2056 37738 10067 92.3 1.445
-06.0 96 45.59 2355 2154 40270 10334 93.4 1.400
-04.0 98 46.56 2409 2255 42992 10590 94.5 1.357
-02.0 100 47.53 2464 2359 45915 10832 95.4 1.316 ! Near Maximum !
+00.0 102 48.50 2519 2465 49059 11060 96.3 1.276 ! Near Maximum !
+02.0 104 49.47 2574 2574 52445 11273 97.1 1.237 !DANGEROUS LOAD-DO NOT USE!
+04.0 106 50.44 2629 2686 56096 11469 97.8 1.200 !DANGEROUS LOAD-DO NOT USE!
+06.0 108 51.41 2684 2799 60038 11646 98.4 1.164 !DANGEROUS LOAD-DO NOT USE!
+08.0 110 52.38 2739 2916 64301 11805 98.9 1.129 !DANGEROUS LOAD-DO NOT USE!
+10.0 112 53.35 2794 3034 68919 11944 99.3 1.095 !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 48.50 2664 2758 60253 11047 99.8 1.172 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 102 48.50 2330 2110 39471 10419 88.1 1.409

 

[SJB358]

WOW- Thank you very much Mike! That is awesome stuff.

What about RL17, worth trying with the 175's? I loaded up some of the 145's yesterday with the data you sent before?

Either way, I think I will load up some 160's today and see what it does with RL19/22. It actually looks pretty impressive once you look a little further than the 50K PSI range. I would have to assume the 7x57 is plenty strong to handle the loads in the 60K PSI range? Again, I will be coming at them from well below, but I wanna verify before I start moving out with it!

 

[SJB358]

Scotty is creating a monster! :mrgreen:

JD338

I am giving it my best shot!

 

[DrMike]

Cartridge : 7 x 57 mm Mauser (SAAMI)
Bullet : .284, 175, Nosler PART SP 35645
Useable Case Capaci: 50.893 grain H2O = 3.304 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-17

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 34.00 2026 1594 28008 7944 94.4 1.626
-18.0 71 34.85 2072 1668 29683 8177 95.3 1.589
-16.0 73 35.70 2118 1744 31451 8401 96.2 1.552
-14.0 74 36.55 2165 1821 33319 8616 97.0 1.517
-12.0 76 37.40 2211 1899 35292 8819 97.7 1.483
-10.0 78 38.25 2257 1979 37377 9012 98.3 1.449
-08.0 79 39.10 2303 2060 39575 9192 98.8 1.408
-06.0 81 39.95 2348 2143 41908 9359 99.2 1.371
-04.0 83 40.80 2393 2226 44371 9513 99.5 1.335 ! Near Maximum !
-02.0 85 41.65 2438 2310 46975 9653 99.8 1.300 ! Near Maximum !
+00.0 86 42.50 2483 2396 49731 9779 99.9 1.267 ! Near Maximum !
+02.0 88 43.35 2527 2482 52649 9889 100.0 1.234 !DANGEROUS LOAD-DO NOT USE!
+04.0 90 44.20 2571 2568 55741 9988 100.0 1.203 !DANGEROUS LOAD-DO NOT USE!
+06.0 92 45.05 2614 2656 59019 10085 100.0 1.172 !DANGEROUS LOAD-DO NOT USE!
+08.0 93 45.90 2657 2744 62495 10180 100.0 1.143 !DANGEROUS LOAD-DO NOT USE!
+10.0 95 46.75 2700 2833 66184 10272 100.0 1.115 !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 42.50 2577 2580 59137 9414 100.0 1.181 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 86 42.50 2346 2138 41209 9794 96.5 1.378

Cartridge : 7 x 57 mm Mauser (SAAMI)
Bullet : .284, 160, Nosler PART SP 16327
Useable Case Capaci: 52.348 grain H2O = 3.399 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-17

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 70 35.20 2097 1562 27266 8055 92.5 1.574
-18.0 71 36.08 2146 1636 28899 8307 93.6 1.538
-16.0 73 36.96 2195 1711 30626 8551 94.6 1.503
-14.0 75 37.84 2244 1789 32450 8786 95.5 1.469
-12.0 76 38.72 2293 1867 34378 9011 96.4 1.436
-10.0 78 39.60 2342 1948 36417 9225 97.1 1.404
-08.0 80 40.48 2390 2030 38573 9428 97.8 1.366
-06.0 82 41.36 2439 2113 40853 9618 98.4 1.331
-04.0 83 42.24 2487 2197 43265 9796 98.9 1.294
-02.0 85 43.12 2535 2283 45819 9959 99.3 1.260 ! Near Maximum !
+00.0 87 44.00 2583 2370 48524 10108 99.6 1.227 ! Near Maximum !
+02.0 89 44.88 2630 2458 51384 10243 99.8 1.195 !DANGEROUS LOAD-DO NOT USE!
+04.0 90 45.76 2677 2546 54429 10361 100.0 1.165 !DANGEROUS LOAD-DO NOT USE!
+06.0 92 46.64 2724 2636 57653 10463 100.0 1.135 !DANGEROUS LOAD-DO NOT USE!
+08.0 94 47.52 2770 2726 61075 10556 100.0 1.106 !DANGEROUS LOAD-DO NOT USE!
+10.0 96 48.40 2816 2817 64709 10646 100.0 1.078 !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 44.00 2690 2570 57680 9761 100.0 1.142 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 87 44.00 2431 2099 40232 9968 95.0 1.337

Cartridge : 7 x 57 mm Mauser (SAAMI)
Bullet : .284, 160, Nosler AccuBond 54932
Useable Case Capaci: 50.321 grain H2O = 3.267 cm³
Cartridge O.A.L. L6: 3.071 inch = 78.00 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-17

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 34.40 2087 1548 27334 7798 92.1 1.575
-18.0 72 35.26 2137 1622 28981 8044 93.2 1.539
-16.0 74 36.12 2186 1697 30730 8282 94.3 1.503
-14.0 76 36.98 2235 1774 32575 8511 95.2 1.469
-12.0 78 37.84 2284 1853 34528 8730 96.1 1.440
-10.0 80 38.70 2333 1933 36594 8940 96.9 1.404
-08.0 81 39.56 2382 2015 38781 9138 97.6 1.365
-06.0 83 40.42 2430 2098 41096 9324 98.2 1.329
-04.0 85 41.28 2479 2183 43551 9497 98.7 1.293 ! Near Maximum !
-02.0 87 42.14 2527 2269 46150 9657 99.2 1.258 ! Near Maximum !
+00.0 88 43.00 2575 2356 48908 9803 99.5 1.225 ! Near Maximum !
+02.0 90 43.86 2623 2444 51832 9934 99.8 1.193 !DANGEROUS LOAD-DO NOT USE!
+04.0 92 44.72 2670 2533 54939 10050 99.9 1.162 !DANGEROUS LOAD-DO NOT USE!
+06.0 94 45.58 2717 2623 58238 10150 100.0 1.132 !DANGEROUS LOAD-DO NOT USE!
+08.0 95 46.44 2764 2713 61745 10237 100.0 1.103 !DANGEROUS LOAD-DO NOT USE!
+10.0 97 47.30 2810 2805 65476 10320 100.0 1.075 !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 88 43.00 2683 2558 58139 9465 100.0 1.140 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 88 43.00 2422 2084 40545 9650 94.7 1.335

 

[SJB358]

Very awesome Mike! I just copy/pasted it all out to add into my data folder you have built up so much for me! That really looks pretty awesome. Headed to the loading bench.. So many combos... This is going to be a long range day!

 

[DrMike]

When I was loading for my own Model 70 Featherweight (chambered in 7X57), I focused on 140 and 150 grain bullets. However, those 160s look pretty good, and the last workup I performed for a client provided some pretty exciting results with 160 grain PT. Within reason, it will take down any game in this province.

 

[SJB358]

When I was loading for my own Model 70 Featherweight (chambered in 7X57), I focused on 140 and 150 grain bullets. However, those 160s look pretty good, and the last workup I performed for a client provided some pretty exciting results with 160 grain PT. Within reason, it will take down any game in this province.

I just loaded up some RL17 loads with the 160 PT with the data you sent Mike. Looks pretty good to me as well. I would think a 160 PT at around 2600-2700 would be just about as nice a hunting round as you would want. Plus, it is very light on the shoulder and that would count for alot to my son.

 

[GF1]

I've loaded for the 7x57 alot since 1976. The most accurate load I have found is a stiff load of H414 (W760) and a good 140 grain bullet (BTs are excellent). However, I don't like the carbon fouling associated with H414 (I use magnum primers for all ball powders, this included), and have since moved to H4350 or IMR 4350.

With 160 grain bullets, I like H4831.

 

[SJB358]

Thanks GF1. W760 or IMR4350 will be the next powder I try if RL17 doesn't work out. Going to try and hit the range today with the rifle and see what it does.

 

[PJGunner]

I've loaded for the 7x57 alot since 1976. The most accurate load I have found is a stiff load of H414 (W760) and a good 140 grain bullet (BTs are excellent). However, I don't like the carbon fouling associated with H414 (I use magnum primers for all ball powders, this included), and have since moved to H4350 or IMR 4350.

With 160 grain bullets, I like H4831.

I worked up a stiff load with W760 and the 140 gr. Nosler Ballistic Tip. A very accurate combo. I get groups in the .50" to .75" for the most part with the load when I do my part. Probably the most accurate load in my M70 Featherweight 7x57 is the 170 gr. Sierra round nose at roughly 2400 FPS (estimated). Groups run from .375" to .50", again when I do my part. Powder was W760. Brass Remington. I've been using Winchester WLR (standard) primers with my ball powder loads and haven't had any carbon fouling problems.
SBJ358. I can very well understand why your son won't part with his M70 Featherweight. The only way you's get mine would be at gunpoint and I'd still make a fight of it. I like it that much.
I have a very nice, if not real fancy FN mauser custom in 7x57 and I like the Featherweight just a little bit better because it's not quite as heavy. Both are equally accurate though.
Paul B.

 

[muleman]

You guys are killing me with this subject! :lol: Here is my 7x57 it's a Ruger 77RSI in stainless. I've only fired one round out of it - to get a fired case for measurements. I've got 140gr BT's over H414,IMR4350 and Hunter all ready to go and now I want to load 160 and 175 Partitions. The 140gr BT's are loaded to an OAL of 3.185(long throat on this one). Come on sunshine!

Scott

 

[DrMike]

I do love the Mannlicher stocks. I had a CZ full stock chambered in 30-06. It was a handy little rifle that was simply fun to carry and to shoot.

 

[SJB358]

You guys are killing me with this subject! :lol: Here is my 7x57 it's a Ruger 77RSI in stainless. I've only fired one round out of it - to get a fired case for measurements. I've got 140gr BT's over H414,IMR4350 and Hunter all ready to go and now I want to load 160 and 175 Partitions. The 140gr BT's are loaded to an OAL of 3.185(long throat on this one). Come on sunshine!

Scott

Very nice rifle Scott! That is certainly a good looking rifle.

Paul, than you for the heads up on the 7x57. It is turning out to be a very accurate little rifle with some solid ability...

160 PT's at 2700 using RL17... Still a little room to grow as well. That is a solid combo for anything short of grizzlies in my book..

 

[muleman]

Scotty,
Nice group for a classic combo!
Scott

 

[SJB358]

Scotty,
Nice group for a classic combo!
Scott

I think it'll do better. Kind of a crappy range day, but this little 7 is surprising me everytime I hit the range Scott. That Ruger of yours looks SWEET buddy. Can't wait to hear/see what it does!

 

[Oldtrader3]

Nice little rifle, nice wood, groups well! I like it!