QL REQUEST PLEASE

[salmonchaser]

I finished the Tubbs treatment on my new to me 300HH. Loaded up some 180 partitions and achieved right at 1moa, without the dreaded #1 stringing issue. I chronographed the load at 2900 fps. Book indicated a 24 inch bbl should generate 3000 fps. The number 1 has a 26 inch bbl, so I’m a little disappointed with those results.
Wondering If I could get a quick load for Rl 25; 26, 22 and H4350; 180 partitions and a 26 inch bbl.
Thanks in advance.
don

 

[DrMike]

Cartridge          : .300 H.& H. Mag.
Bullet             : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 76.287 grain H2O = 4.953 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : Alliant Reloder-25 *C

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   99    69.30   2809    3153   43048  10827     99.3    1.395
-09.0  100    70.07   2841    3227   44593  10909     99.5    1.373
-08.0  101    70.84   2874    3301   46193  10983     99.7    1.350
-07.0  102    71.61   2906    3376   47856  11050     99.8    1.328
-06.0  103    72.38   2939    3451   49586  11109     99.9    1.306
-05.0  105    73.15   2971    3527   51386  11161    100.0    1.285
-04.0  106    73.92   3003    3603   53258  11204    100.0    1.265  ! Near Maximum !
-03.0  107    74.69   3034    3680   55207  11245    100.0    1.244  ! Near Maximum !
-02.0  108    75.46   3066    3757   57235  11284    100.0    1.224  ! Near Maximum !
-01.0  109    76.23   3097    3834   59348  11323    100.0    1.204  ! Near Maximum !
+00.0  110    77.00   3129    3912   61549  11360    100.0    1.185  ! Near Maximum !
+01.0  111    77.77   3160    3990   63845  11397    100.0    1.166  !DANGEROUS LOAD-DO NOT USE!
+02.0  112    78.54   3191    4069   66240  11432    100.0    1.147  !DANGEROUS LOAD-DO NOT USE!
+03.0  113    79.31   3222    4148   68735  11466    100.0    1.129  !DANGEROUS LOAD-DO NOT USE!
+04.0  114    80.08   3252    4228   71343  11499    100.0    1.111  !DANGEROUS LOAD-DO NOT USE!
+05.0  116    80.85   3283    4308   74066  11531    100.0    1.094  !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    110    77.00   3198    4088   68615  11099    100.0    1.136  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    110    77.00   3041    3697   55084  11659     99.9    1.242  ! Near Maximum !

 

[DrMike]

Cartridge          : .300 H.& H. Mag.
Bullet             : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 76.287 grain H2O = 4.953 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : Alliant Reloder-26 *C

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   91    68.85   2826    3192   42262  11174     99.5    1.418
-09.0   92    69.62   2859    3268   43844  11251     99.7    1.394
-08.0   93    70.38   2893    3344   45493  11320     99.8    1.371
-07.0   94    71.15   2926    3421   47210  11381     99.9    1.347
-06.0   95    71.91   2959    3499   48998  11433    100.0    1.325
-05.0   96    72.68   2991    3577   50869  11478    100.0    1.302
-04.0   97    73.44   3024    3655   52818  11520    100.0    1.281
-03.0   98    74.21   3056    3734   54853  11561    100.0    1.259  ! Near Maximum !
-02.0   99    74.97   3089    3813   56976  11601    100.0    1.238  ! Near Maximum !
-01.0  100    75.74   3121    3893   59196  11640    100.0    1.217  ! Near Maximum !
+00.0  101    76.50   3153    3973   61510  11677    100.0    1.197  ! Near Maximum !
+01.0  102    77.27   3185    4053   63941  11714    100.0    1.177  !DANGEROUS LOAD-DO NOT USE!
+02.0  103    78.03   3216    4134   66466  11749    100.0    1.158  !DANGEROUS LOAD-DO NOT USE!
+03.0  104    78.80   3248    4216   69092  11783    100.0    1.139  !DANGEROUS LOAD-DO NOT USE!
+04.0  105    79.56   3279    4298   71829  11816    100.0    1.120  !DANGEROUS LOAD-DO NOT USE!
+05.0  106    80.33   3311    4381   74684  11848    100.0    1.101  !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    101    76.50   3225    4158   69572  11401    100.0    1.143  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    101    76.50   3062    3746   54037  12009    100.0    1.260  ! Near Maximum !

 

[DrMike]

Cartridge          : .300 H.& H. Mag.
Bullet             : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 76.287 grain H2O = 4.953 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : Alliant Reloder-22 *C

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   93    66.33   2770    3068   43108  10682     96.3    1.407
-09.0   94    67.07   2802    3139   44612  10800     96.7    1.385
-08.0   95    67.80   2834    3210   46173  10913     97.1    1.363
-07.0   96    68.54   2866    3283   47793  11023     97.5    1.342
-06.0   97    69.28   2898    3356   49473  11127     97.9    1.321
-05.0   98    70.02   2929    3430   51218  11227     98.2    1.300
-04.0  100    70.75   2961    3504   53029  11321     98.5    1.280  ! Near Maximum !
-03.0  101    71.49   2993    3579   54902  11411     98.8    1.260  ! Near Maximum !
-02.0  102    72.23   3024    3655   56837  11495     99.0    1.241  ! Near Maximum !
-01.0  103    72.96   3056    3732   58838  11574     99.3    1.222  ! Near Maximum !
+00.0  104    73.70   3087    3809   60913  11647     99.4    1.203  ! Near Maximum !
+01.0  105    74.44   3118    3887   63065  11715     99.6    1.184  !DANGEROUS LOAD-DO NOT USE!
+02.0  106    75.17   3150    3965   65298  11777     99.7    1.166  !DANGEROUS LOAD-DO NOT USE!
+03.0  107    75.91   3181    4044   67615  11833     99.9    1.148  !DANGEROUS LOAD-DO NOT USE!
+04.0  108    76.65   3212    4123   70020  11883     99.9    1.131  !DANGEROUS LOAD-DO NOT USE!
+05.0  109    77.39   3243    4203   72518  11926    100.0    1.114  !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    104    73.70   3164    4000   67451  11458    100.0    1.153  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    104    73.70   2996    3587   54475  11658     97.6    1.260  ! Near Maximum !

 

[DrMike]

Cartridge          : .300 H.& H. Mag.
Bullet             : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 76.287 grain H2O = 4.953 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : Hodgdon H4350 *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    60.75   2714    2945   45626   9436     97.7    1.379
-09.0   89    61.43   2742    3005   47018   9529     97.9    1.360
-08.0   90    62.10   2769    3065   48451   9619     98.2    1.341
-07.0   91    62.78   2796    3125   49926   9705     98.5    1.323
-06.0   92    63.45   2823    3186   51443   9788     98.7    1.305
-05.0   93    64.13   2850    3247   53006   9868     98.9    1.287
-04.0   94    64.80   2877    3309   54614   9945     99.1    1.269  ! Near Maximum !
-03.0   95    65.48   2904    3371   56270  10018     99.3    1.252  ! Near Maximum !
-02.0   96    66.15   2931    3433   57975  10088     99.5    1.236  ! Near Maximum !
-01.0   97    66.83   2957    3496   59731  10154     99.6    1.219  ! Near Maximum !
+00.0   98    67.50   2984    3559   61539  10216     99.7    1.203  ! Near Maximum !
+01.0   99    68.18   3010    3622   63402  10275     99.8    1.187  !DANGEROUS LOAD-DO NOT USE!
+02.0  100    68.85   3037    3686   65322  10330     99.9    1.172  !DANGEROUS LOAD-DO NOT USE!
+03.0  101    69.53   3063    3750   67299  10381    100.0    1.156  !DANGEROUS LOAD-DO NOT USE!
+04.0  102    70.20   3089    3814   69338  10427    100.0    1.141  !DANGEROUS LOAD-DO NOT USE!
+05.0  103    70.88   3115    3878   71439  10470    100.0    1.126  !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    67.50   3041    3697   66684  10046    100.0    1.162  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba     98    67.50   2915    3396   56420  10270     98.5    1.250  ! Near Maximum !

 

[salmonchaser]

Thank you Dr. Mike. I reviewed my notes from the other day. The Accubonds were at 2900 using 72.5 grains of Rl 25.
The Partitions were at 2860 using 72.5 grains of Rl 25.
Coal for the accubonds 3.605
coal for the partitions was 3.580
When comparing my data to Quick load is there any relevant information gained?
I have not recalculated distance to the lands since using the Tubbs treatment.

 

[DrMike]

Cartridge          : .300 H.& H. Mag.
Bullet             : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 75.911 grain H2O = 4.929 cm³
Cartridge O.A.L. L6: 3.580 inch = 90.93 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : Hodgdon H4350 *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    60.57   2713    2942   45654   9399     97.6    1.379
-09.0   89    61.24   2741    3002   47050   9492     97.9    1.360
-08.0   90    61.92   2768    3062   48486   9581     98.2    1.341
-07.0   91    62.59   2795    3122   49964   9667     98.5    1.322
-06.0   92    63.26   2822    3183   51485   9750     98.7    1.304
-05.0   93    63.94   2849    3245   53052   9830     98.9    1.287  ! Near Maximum !
-04.0   94    64.61   2876    3306   54664   9906     99.1    1.269  ! Near Maximum !
-03.0   95    65.28   2903    3368   56325   9979     99.3    1.252  ! Near Maximum !
-02.0   96    65.95   2930    3431   58034  10049     99.5    1.235  ! Near Maximum !
-01.0   97    66.63   2956    3493   59795  10115     99.6    1.219  ! Near Maximum !
+00.0   98    67.30   2983    3556   61609  10177     99.7    1.203  ! Near Maximum !
+01.0   99    67.97   3009    3620   63478  10235     99.8    1.187  !DANGEROUS LOAD-DO NOT USE!
+02.0  100    68.65   3036    3683   65404  10290     99.9    1.171  !DANGEROUS LOAD-DO NOT USE!
+03.0  101    69.32   3062    3747   67388  10341     99.9    1.156  !DANGEROUS LOAD-DO NOT USE!
+04.0  102    69.99   3088    3811   69433  10387    100.0    1.141  !DANGEROUS LOAD-DO NOT USE!
+05.0  103    70.67   3114    3876   71542  10430    100.0    1.126  !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    67.30   3041    3695   66768  10007    100.0    1.162  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba     98    67.30   2914    3393   56477  10230     98.5    1.249  ! Near Maximum !

 

[DrMike]

Cartridge          : .300 H.& H. Mag.
Bullet             : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 75.911 grain H2O = 4.929 cm³
Cartridge O.A.L. L6: 3.580 inch = 90.93 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : Alliant Reloder-22 *C

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   94    66.33   2778    3084   43508  10672     96.4    1.401
-09.0   95    67.07   2810    3155   45034  10789     96.8    1.379
-08.0   96    67.80   2842    3227   46617  10901     97.2    1.357
-07.0   97    68.54   2873    3300   48259  11009     97.6    1.336
-06.0   98    69.28   2905    3374   49966  11112     97.9    1.315
-05.0   99    70.02   2937    3448   51733  11210     98.3    1.294
-04.0  100    70.75   2969    3523   53576  11304     98.6    1.274  ! Near Maximum !
-03.0  101    71.49   3001    3599   55479  11392     98.8    1.254  ! Near Maximum !
-02.0  102    72.23   3032    3675   57446  11474     99.1    1.235  ! Near Maximum !
-01.0  103    72.96   3064    3752   59480  11552     99.3    1.216  ! Near Maximum !
+00.0  104    73.70   3095    3829   61590  11623     99.5    1.197  ! Near Maximum !
+01.0  105    74.44   3127    3908   63780  11689     99.6    1.178  !DANGEROUS LOAD-DO NOT USE!
+02.0  106    75.17   3158    3986   66052  11749     99.8    1.160  !DANGEROUS LOAD-DO NOT USE!
+03.0  107    75.91   3189    4066   68411  11804     99.9    1.143  !DANGEROUS LOAD-DO NOT USE!
+04.0  108    76.65   3221    4146   70861  11852     99.9    1.125  !DANGEROUS LOAD-DO NOT USE!
+05.0  109    77.39   3252    4226   73406  11893    100.0    1.108  !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    104    73.70   3172    4020   68210  11428    100.0    1.148  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    104    73.70   3004    3607   55073  11642     97.7    1.253  ! Near Maximum !

 

[DrMike]

Cartridge          : .300 H.& H. Mag.
Bullet             : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 75.911 grain H2O = 4.929 cm³
Cartridge O.A.L. L6: 3.580 inch = 90.93 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : Alliant Reloder-25 *C

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   99    69.03   2805    3144   42938  10780     99.3    1.397
-09.0  100    69.80   2837    3218   44474  10862     99.5    1.374
-08.0  101    70.56   2870    3292   46071  10937     99.7    1.352
-07.0  102    71.33   2902    3367   47730  11005     99.8    1.330
-06.0  104    72.10   2935    3442   49455  11065     99.9    1.308
-05.0  105    72.87   2967    3518   51250  11117    100.0    1.287
-04.0  106    73.63   2999    3594   53118  11160    100.0    1.266  ! Near Maximum !
-03.0  107    74.40   3030    3670   55063  11201    100.0    1.246  ! Near Maximum !
-02.0  108    75.17   3062    3747   57087  11240    100.0    1.225  ! Near Maximum !
-01.0  109    75.93   3093    3825   59195  11278    100.0    1.206  ! Near Maximum !
+00.0  110    76.70   3125    3903   61393  11315    100.0    1.186  ! Near Maximum !
+01.0  111    77.47   3156    3981   63683  11351    100.0    1.167  !DANGEROUS LOAD-DO NOT USE!
+02.0  112    78.23   3187    4060   66073  11386    100.0    1.149  !DANGEROUS LOAD-DO NOT USE!
+03.0  114    79.00   3218    4139   68565  11420    100.0    1.130  !DANGEROUS LOAD-DO NOT USE!
+04.0  115    79.77   3249    4218   71168  11452    100.0    1.112  !DANGEROUS LOAD-DO NOT USE!
+05.0  116    80.54   3280    4299   73885  11484    100.0    1.095  !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    110    76.70   3194    4078   68432  11054    100.0    1.137  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    110    76.70   3037    3687   54949  11612     99.9    1.243  ! Near Maximum !

 

[DrMike]

Cartridge          : .300 H.& H. Mag.
Bullet             : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 75.911 grain H2O = 4.929 cm³
Cartridge O.A.L. L6: 3.580 inch = 90.93 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : Alliant Reloder-26 *C

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   91    68.67   2826    3191   42297  11136     99.5    1.417
-09.0   92    69.43   2859    3267   43883  11213     99.7    1.393
-08.0   93    70.20   2892    3344   45535  11282     99.8    1.370
-07.0   94    70.96   2926    3421   47257  11342     99.9    1.346
-06.0   95    71.72   2959    3498   49053  11395    100.0    1.324
-05.0   96    72.49   2991    3576   50927  11439    100.0    1.301
-04.0   97    73.25   3024    3655   52881  11480    100.0    1.280
-03.0   98    74.01   3056    3734   54922  11521    100.0    1.258  ! Near Maximum !
-02.0   99    74.77   3089    3813   57038  11560    100.0    1.237  ! Near Maximum !
-01.0  100    75.54   3121    3893   59278  11598    100.0    1.216  ! Near Maximum !
+00.0  101    76.30   3153    3973   61605  11636    100.0    1.196  ! Near Maximum !
+01.0  102    77.06   3185    4054   64040  11672    100.0    1.176  !DANGEROUS LOAD-DO NOT USE!
+02.0  103    77.83   3216    4135   66579  11706    100.0    1.157  !DANGEROUS LOAD-DO NOT USE!
+03.0  104    78.59   3248    4217   69221  11740    100.0    1.137  !DANGEROUS LOAD-DO NOT USE!
+04.0  105    79.35   3280    4299   71973  11772    100.0    1.119  !DANGEROUS LOAD-DO NOT USE!
+05.0  106    80.12   3311    4382   74844  11803    100.0    1.100  !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    101    76.30   3225    4158   69695  11359    100.0    1.142  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    101    76.30   3062    3746   54124  11968    100.0    1.259  ! Near Maximum !

 

[DrMike]

As you can see, velocities change very little. Charge weights may drop by a couple of tenths of a grain to reach maximum chamber pressure. Fascinating.

 

[300WSM]

Thank you Dr. Mike. I reviewed my notes from the other day. The Accubonds were at 2900 using 72.5 grains of Rl 25.
The Partitions were at 2860 using 72.5 grains of Rl 25.
Coal for the accubonds 3.605
coal for the partitions was 3.580
When comparing my data to Quick load is there any relevant information gained?
I have not recalculated distance to the lands since using the Tubbs treatment.

You are twenty five thousandths and 30 thousandths longer on you COAL than Nosler's testing.

IMO...it's tough to hit the magical 3000 fps with a 180 in the H&H mag... but not impossible.

Also IMO...
The two very best powders are IMR4350 and IMR 4831

You won't hit 3000 but you'll hit around 2930 or so but with tremendous accuracy.