Quick load 7x57 please.

[salmonchaser]

Looking to try a high pressure load with rl 17
150 gr. AccuBond
60K to 61k
24 inch barrel
Ruger #1
3.209 coal. “Long throat.
I know I can run 49.5 to 50gr. Of Rl 17 with a 140. Would like to see what happens with a 150
I think this has been posted before but I’ll be danged if I can find it.
Thanks in advance.

 

[DrMike]

Cartridge          : 7 x 57 mm Mauser (SAAMI)
Bullet             : .284, 150, Nosler Accubond LR 58734 G7
Useable Case Capaci: 53.547 grain H2O = 3.477 cm³
Cartridge O.A.L. L6: 3.209 inch = 81.51 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-17 *T

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   88    45.54   2676    2384   43145   9535     99.6    1.324
-09.0   89    46.05   2704    2435   44588   9604     99.7    1.304
-08.0   90    46.55   2732    2487   46080   9668     99.8    1.284
-07.0   91    47.06   2761    2538   47626   9727     99.9    1.265
-06.0   92    47.56   2789    2590   49225   9781    100.0    1.246
-05.0   93    48.07   2817    2643   50882   9829    100.0    1.228
-04.0   94    48.58   2845    2695   52592   9873    100.0    1.210  ! Near Maximum !
-03.0   95    49.08   2872    2748   54375   9916    100.0    1.192  ! Near Maximum !
-02.0   96    49.59   2900    2800   56218   9959    100.0    1.174  ! Near Maximum !
-01.0   97    50.09   2927    2854   58127  10001    100.0    1.157  ! Near Maximum !
+00.0   98    50.60   2954    2907   60107  10042    100.0    1.140  ! Near Maximum !
+01.0   99    51.11   2981    2960   62161  10083    100.0    1.124  !DANGEROUS LOAD-DO NOT USE!
+02.0  100    51.61   3008    3014   64285  10122    100.0    1.107  !DANGEROUS LOAD-DO NOT USE!
+03.0  101    52.12   3035    3068   66504  10161    100.0    1.092  !DANGEROUS LOAD-DO NOT USE!
+04.0  102    52.62   3062    3123   68799  10199    100.0    1.076  !DANGEROUS LOAD-DO NOT USE!
+05.0  103    53.13   3089    3177   71182  10236    100.0    1.061  !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     98    50.60   3013    3023   66608   9825    100.0    1.096  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba     98    50.60   2881    2765   54085  10296     99.9    1.191  ! Near Maximum !

 

[salmonchaser]

Thank you Dr. Mike. Merry Christmas.

 

[SJB358]

17 and the 7x57 really made some great loads for my sons rifle. He still has a box of 150 BTs loaded with 17 that were 2890 last we checked them. Accurate as heck.

I used 17 from 140’s to 175’s and it worked great across the board.