300 WSM QL request for 200 gr ELD-X

BossGobbler

Beginner
May 15, 2022
3
0
Good Morning.
I’m loading for a new 300WSM. I have a great load for my Win model 70 WSM using 165gr Barnes TSX and 59.0 gr of Accurate 2520 COLA 2.850 FED 2015 primer.

However, I have a new Fierce .300 WSM and want to to load 200gr ELDX. I have Accurate 2520, Accurate No. 9, and Reloader 19 on my shelf now.

I am also hoping to work loads for .300 WinMag using 200gr ELDx or 212gr ELDX.
I would appreciate a QL for these powders or suggestions/input for other powder options as well.
Thanks in Advance.
 

DrMike

Ballistician
Nov 8, 2006
34,810
959
Code:
Cartridge          : .300 WSM (CIP)
Bullet             : .308, 200, Hornady ELD-X 3076 G7
Useable Case Capaci: 67.931 grain H2O = 4.411 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-19 *C

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    51.60   2289    2327   32799   8628     91.6    1.611
-18.0   84    52.89   2345    2442   34996   8892     92.8    1.568
-16.0   87    54.18   2401    2560   37343   9148     93.9    1.525
-14.0   89    55.47   2457    2681   39845   9393     94.8    1.479
-12.0   91    56.76   2513    2804   42518   9627     95.7    1.435
-10.0   93    58.05   2569    2931   45372   9850     96.6    1.392
-08.0   95    59.34   2625    3059   48431  10059     97.3    1.351
-06.0   97    60.63   2680    3190   51701  10255     98.0    1.311
-04.0   99    61.92   2736    3324   55199  10435     98.5    1.273  ! Near Maximum !
-02.0  101    63.21   2791    3459   58921  10600     99.0    1.236  ! Near Maximum !
+00.0  103    64.50   2846    3597   62890  10749     99.4    1.201  ! Near Maximum !
+02.0  105    65.79   2901    3737   67141  10880     99.7    1.167  !DANGEROUS LOAD-DO NOT USE!
+04.0  107    67.08   2955    3879   71698  10992     99.9    1.134  !DANGEROUS LOAD-DO NOT USE!
+06.0  109    68.37   3010    4023   76587  11086    100.0    1.102  !DANGEROUS LOAD-DO NOT USE!
+08.0  111    69.66   3064    4168   81841  11161    100.0    1.071  !DANGEROUS LOAD-DO NOT USE!
+10.0  113    70.95   3117    4315   87494  11229    100.0    1.041  !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    103    64.50   2961    3894   74934  10388    100.0    1.118  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    103    64.50   2683    3197   51264  10611     94.8    1.310
 

DrMike

Ballistician
Nov 8, 2006
34,810
959
Accurate 2520 is a faster propellant than I would prefer to use, though it will work.

Code:
Cartridge          : .300 WSM (CIP)
Bullet             : .308, 200, Hornady ELD-X 3076 G7
Useable Case Capaci: 67.931 grain H2O = 4.411 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Accurate 2520

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   67    44.40   2282    2313   35188   7557    100.0    1.621
-18.0   69    45.51   2329    2408   37362   7671    100.0    1.581
-16.0   71    46.62   2374    2503   39651   7783    100.0    1.537
-14.0   72    47.73   2419    2599   42063   7892    100.0    1.495
-12.0   74    48.84   2464    2695   44601   8001    100.0    1.454
-10.0   76    49.95   2507    2792   47275   8107    100.0    1.415
-08.0   77    51.06   2551    2889   50090   8212    100.0    1.378
-06.0   79    52.17   2593    2987   53055   8315    100.0    1.342
-04.0   81    53.28   2636    3085   56178   8416    100.0    1.308  ! Near Maximum !
-02.0   82    54.39   2678    3185   59469   8515    100.0    1.274  ! Near Maximum !
+00.0   84    55.50   2720    3284   62937   8612    100.0    1.243  ! Near Maximum !
+02.0   86    56.61   2761    3385   66594   8707    100.0    1.212  !DANGEROUS LOAD-DO NOT USE!
+04.0   87    57.72   2802    3486   70451   8799    100.0    1.183  !DANGEROUS LOAD-DO NOT USE!
+06.0   89    58.83   2843    3589   74522   8890    100.0    1.155  !DANGEROUS LOAD-DO NOT USE!
+08.0   91    59.94   2883    3692   78820   8978    100.0    1.127  !DANGEROUS LOAD-DO NOT USE!
+10.0   92    61.05   2924    3796   83363   9063    100.0    1.101  !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     84    55.50   2782    3438   73619   8364    100.0    1.168  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     84    55.50   2625    3060   52039   8974    100.0    1.346
 
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