Quick load help 325 wsm

Bearcat 7000 · Nov 24, 2018

Good evening hope everyone enjoyed thanksgiving. Seeing if anyone could run ql for a 325 wsm using rl26, h4350, rl17 with a Sierra 220gr boattail seated 2.876 rifle has 24 inch barrel thanks.

DrMike · Nov 24, 2018

Code:

Cartridge          : .325 WSM
Bullet             : .323, 220, Sierra SPBT 2420
Useable Case Capaci: 70.313 grain H2O = 4.565 cm³
Cartridge O.A.L. L6: 2.876 inch = 73.05 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-26

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   95    66.51   2610    3329   42926  10539     99.3    1.409
-09.0   97    67.25   2642    3410   44573  10615     99.5    1.384
-08.0   98    67.99   2674    3493   46291  10684     99.7    1.360
-07.0   99    68.73   2706    3576   48086  10745     99.8    1.337
-06.0  100    69.47   2737    3660   49962  10797     99.9    1.313
-05.0  101    70.21   2769    3745   51922  10842    100.0    1.291
-04.0  102    70.94   2800    3830   53973  10878    100.0    1.268
-03.0  103    71.68   2831    3916   56119  10912    100.0    1.246  ! Near Maximum !
-02.0  104    72.42   2862    4002   58366  10945    100.0    1.225  ! Near Maximum !
-01.0  105    73.16   2893    4089   60720  10976    100.0    1.204  ! Near Maximum !
+00.0  106    73.90   2924    4177   63187  11006    100.0    1.183  ! Near Maximum !
+01.0  107    74.64   2955    4265   65775  11035    100.0    1.162  !DANGEROUS LOAD-DO NOT USE!
+02.0  108    75.38   2985    4354   68491  11063    100.0    1.142  !DANGEROUS LOAD-DO NOT USE!
+03.0  109    76.12   3016    4443   71343  11089    100.0    1.123  !DANGEROUS LOAD-DO NOT USE!
+04.0  110    76.86   3046    4534   74338  11114    100.0    1.103  !DANGEROUS LOAD-DO NOT USE!
+05.0  111    77.60   3077    4625   77489  11137    100.0    1.084  !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    73.90   3049    4540   80557  10482    100.0    1.083  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    106    73.90   2728    3635   49005  11455     98.1    1.316

DrMike · Nov 24, 2018

Code:

Cartridge          : .325 WSM
Bullet             : .323, 220, Sierra SPBT 2420
Useable Case Capaci: 70.313 grain H2O = 4.565 cm³
Cartridge O.A.L. L6: 2.876 inch = 73.05 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-17

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    58.59   2582    3256   45528   9285    100.0    1.377
-09.0   87    59.24   2608    3322   47030   9337    100.0    1.357
-08.0   88    59.89   2633    3387   48593   9388    100.0    1.337
-07.0   89    60.54   2659    3453   50206   9439    100.0    1.317
-06.0   90    61.19   2684    3519   51872   9489    100.0    1.298
-05.0   91    61.85   2709    3585   53599   9538    100.0    1.280
-04.0   92    62.50   2734    3652   55383   9586    100.0    1.261  ! Near Maximum !
-03.0   93    63.15   2759    3718   57231   9634    100.0    1.243  ! Near Maximum !
-02.0   94    63.80   2784    3786   59144   9681    100.0    1.226  ! Near Maximum !
-01.0   95    64.45   2808    3853   61125   9728    100.0    1.208  ! Near Maximum !
+00.0   96    65.10   2833    3921   63176   9773    100.0    1.192  ! Near Maximum !
+01.0   97    65.75   2858    3989   65304   9818    100.0    1.175  !DANGEROUS LOAD-DO NOT USE!
+02.0   98    66.40   2882    4057   67506   9862    100.0    1.159  !DANGEROUS LOAD-DO NOT USE!
+03.0   99    67.05   2906    4126   69790   9906    100.0    1.142  !DANGEROUS LOAD-DO NOT USE!
+04.0  100    67.70   2931    4195   72151   9948    100.0    1.127  !DANGEROUS LOAD-DO NOT USE!
+05.0  101    68.36   2955    4265   74589   9990    100.0    1.111  !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     96    65.10   2920    4165   76736   9427    100.0    1.111  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     96    65.10   2699    3559   50813  10252     99.8    1.301

DrMike · Nov 24, 2018

Code:

Cartridge          : .325 WSM
Bullet             : .323, 220, Sierra SPBT 2420
Useable Case Capaci: 70.313 grain H2O = 4.565 cm³
Cartridge O.A.L. L6: 2.876 inch = 73.05 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon H4350

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    58.32   2491    3032   46271   8786     97.2    1.385
-09.0   93    58.97   2517    3095   47721   8875     97.5    1.366
-08.0   94    59.62   2543    3158   49216   8961     97.8    1.346
-07.0   95    60.26   2568    3222   50757   9044     98.1    1.328
-06.0   96    60.91   2594    3286   52346   9124     98.4    1.309
-05.0   97    61.56   2619    3351   53985   9202     98.6    1.291
-04.0   98    62.21   2644    3416   55675   9276     98.8    1.273  ! Near Maximum !
-03.0   99    62.86   2670    3481   57418   9347     99.0    1.256  ! Near Maximum !
-02.0  100    63.50   2695    3547   59217   9415     99.2    1.239  ! Near Maximum !
-01.0  101    64.15   2720    3614   61073   9480     99.4    1.222  ! Near Maximum !
+00.0  102    64.80   2745    3681   62989   9541     99.5    1.205  ! Near Maximum !
+01.0  103    65.45   2770    3748   64967   9598     99.7    1.189  !DANGEROUS LOAD-DO NOT USE!
+02.0  104    66.10   2795    3816   67009   9652     99.8    1.173  !DANGEROUS LOAD-DO NOT USE!
+03.0  105    66.74   2820    3884   69118   9703     99.9    1.157  !DANGEROUS LOAD-DO NOT USE!
+04.0  106    67.39   2845    3953   71296   9749     99.9    1.142  !DANGEROUS LOAD-DO NOT USE!
+05.0  107    68.04   2869    4022   73547   9792    100.0    1.127  !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    64.80   2844    3952   73876   9209    100.0    1.129  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    102    64.80   2604    3312   52292   9487     95.5    1.305

Bearcat 7000 · Nov 24, 2018

Thanks dr Mike I found your ql info rl17 after I posted this. I appr3ciste the other two. I also read you had a good load with big game and rl19 as well you mind sharing that data? Thanks

John

DrMike · Nov 24, 2018

Bearcat 7000":2nd0xh0p said:
Thanks dr Mike I found your ql info rl17 after I posted this. I appr3ciste the other two. I also read you had a good load with big game and rl19 as well you mind sharing that data? Thanks

John

That particular load is built with 220 grain Sierra 220 grain BT, WLRM primer and 64 grains of RL19. I can go to a maximum load of 65 grains of propellant, but the greatest accuracy is with 64 grains (consistent 0.4 inch groups at 100 yards). Accuracy expands to 0.8 inches with the increase of one grain of propellant.

Bearcat 7000 · Nov 24, 2018

Thanks what velocity were you getting? This Sierra has a very high bc can't believe I overlooked it all these yrs.

Bearcat 7000 · Nov 25, 2018

Well weather was horrible today blowing wind, so next weekend get out and try this load I'm working on using RL26.

DrMike · Nov 25, 2018

Bearcat 7000":fe5yrpvz said:
Thanks what velocity were you getting? This Sierra has a very high bc can't believe I overlooked it all these yrs.

~2550 fps

Bearcat 7000 · Dec 1, 2018

Made it to the range looks 71.0grs , 72.5 and 73.0 were the winners from 7 loads. Will load up 5 each adjust seating depth just a hair. Will try and chronograph next time..