7x57r loads

Dac9976 · September 18, 2015

Hi all

I'm after some load date for a 7x57r. I've got some Ramshot hunter and vit n150.

Also got given some 140gr Sierra spitzers....never had any experience with these so any feed back on them would be great. Got some 140gr nosler partitions put back for me at my RFD if needed.

Cheers

Danny.

henryo · September 18, 2015

Ok so with 140gr Bullets

VV manual: http://www.vihtavuori.com/en/reloading-data/rifle-reloading/7-x-57r.html

N150 Start 39gr Max 43.4gr

More Data (Nosler): http://www.nosler.com/nosler-load-data/7x57mm-mauser/

N150 Start 39.5 Max 43.5gr

R. Hunter Start 45.5gr Max 49.5gr

and quickload:

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Cartridge : 7 x 57 R
Bullet : .284, 140, Sierra SPBT 1905
Cartridge O.A.L. L6: 3.071 inch or 78.00 mm
Barrel Length : 26.0 inch or 660.4 mm
Powder : Vihtavuori N150

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.136% 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

-11.4 81 39.00 2407 1801 31044 6822 97.6 1.588
-10.2 82 39.50 2435 1843 32062 6903 98.0 1.568
-09.1 83 40.00 2463 1885 33113 6983 98.3 1.548
-08.0 84 40.50 2490 1927 34196 7059 98.6 1.528
-06.8 85 41.00 2517 1970 35314 7133 98.8 1.509
-05.7 86 41.50 2545 2013 36466 7203 99.1 1.490
-04.5 87 42.00 2572 2056 37655 7271 99.3 1.470
-03.4 88 42.50 2599 2100 38881 7336 99.5 1.447
-02.3 89 43.00 2626 2143 40146 7397 99.6 1.426
-01.1 91 43.50 2653 2187 41450 7456 99.7 1.405
+00.0 92 44.00 2679 2232 42796 7511 99.8 1.385 ! Near Maximum !
+01.1 93 44.50 2706 2276 44184 7562 99.9 1.365 ! Near Maximum !
+02.3 94 45.00 2732 2321 45616 7611 100.0 1.345 ! Near Maximum !
+03.4 95 45.50 2759 2366 47093 7656 100.0 1.326 ! Near Maximum !
+04.5 96 46.00 2785 2411 48618 7697 100.0 1.307 !DANGEROUS LOAD-DO NOT USE!
+05.7 97 46.50 2811 2456 50192 7738 100.0 1.289 !DANGEROUS LOAD-DO NOT USE!

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Cartridge : 7 x 57 R
Bullet : .284, 140, Sierra SPBT 1905
Cartridge O.A.L. L6: 3.071 inch or 78.00 mm
Barrel Length : 26.0 inch or 660.4 mm
Powder : Ramshot Hunter

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 86 45.00 2551 2023 33579 8021 92.6 1.509
-09.0 87 45.50 2579 2068 34618 8126 93.1 1.491
-08.0 87 46.00 2608 2114 35690 8229 93.6 1.474
-07.0 88 46.50 2636 2160 36796 8330 94.1 1.456
-06.0 89 47.00 2664 2207 37939 8429 94.6 1.433
-05.0 90 47.50 2693 2254 39118 8526 95.0 1.414
-04.0 91 48.00 2721 2302 40332 8620 95.5 1.394
-03.0 92 48.50 2749 2350 41593 8711 95.9 1.374
-02.0 93 49.00 2778 2398 42891 8800 96.3 1.355 ! Near Maximum !
-01.0 94 49.50 2806 2447 44232 8886 96.7 1.336 ! Near Maximum !
+00.0 95 50.00 2834 2497 45608 8969 97.0 1.318 ! Near Maximum !
+01.0 96 50.50 2862 2547 47051 9049 97.4 1.299 ! Near Maximum !
+02.0 97 51.00 2891 2597 48532 9126 97.7 1.281 ! Near Maximum !
+03.0 98 51.50 2919 2648 50062 9201 98.0 1.264 !DANGEROUS LOAD-DO NOT USE!
+04.0 99 52.00 2947 2699 51644 9271 98.3 1.246 !DANGEROUS LOAD-DO NOT USE!
+05.0 100 52.50 2975 2751 53283 9339 98.5 1.229 !DANGEROUS LOAD-DO NOT USE!

You will probably want to check what kind of pressures are suitable for your rifle - the factory data might be on the mild side, so you don't blow up historic rifles.