Quick load request 243 win 85gn Sierra HPBT

mjcmichigan · May 23, 2018

Hi,

Kindly requesting two QL reports.

1) overview with all powders
2) IMR 4381, this Rifle loved the IMR4381 0.4” with H interlocks and SSTs

Case Remington vol 53.3gn
Primer CCI bench Large Rifle
85gn Sierra Game Kong’s, HPBT

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DrMike · May 23, 2018

Did you mean 243 Win?

DrMike · May 23, 2018

I'll assume you did mean 243 Win.

Code:

Cartridge          : .243 Win.
Bullet             : .243, 85, Sierra HPBT 1530
Useable Case Capaci: 50.398 grain H2O = 3.272 cm³
Cartridge O.A.L. L6: 2.710 inch = 68.83 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : IMR 4831

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    40.77   2856    1540   42854  10855     97.5    1.229
-09.0   93    41.22   2887    1573   44282  10959     97.8    1.211
-08.0   94    41.68   2918    1607   45756  11059     98.2    1.192
-07.0   95    42.13   2949    1641   47278  11154     98.5    1.174
-06.0   96    42.58   2979    1675   48848  11243     98.8    1.157
-05.0   97    43.04   3010    1710   50469  11328     99.0    1.139
-04.0   98    43.49   3040    1745   52143  11407     99.3    1.122  ! Near Maximum !
-03.0   99    43.94   3071    1780   53870  11481     99.5    1.106  ! Near Maximum !
-02.0  100    44.39   3101    1815   55654  11549     99.6    1.089  ! Near Maximum !
-01.0  101    44.85   3131    1850   57496  11611     99.8    1.073  ! Near Maximum !
+00.0  102    45.30   3161    1886   59399  11668     99.9    1.058  ! Near Maximum !
+01.0  103    45.75   3190    1921   61364  11719     99.9    1.042  !DANGEROUS LOAD-DO NOT USE!
+02.0  104    46.21   3220    1957   63394  11764    100.0    1.027  !DANGEROUS LOAD-DO NOT USE!
+03.0  105    46.66   3249    1993   65491  11803    100.0    1.012  !DANGEROUS LOAD-DO NOT USE!
+04.0  106    47.11   3279    2029   67659  11838    100.0    0.998  !DANGEROUS LOAD-DO NOT USE!
+05.0  107    47.57   3308    2065   69900  11872    100.0    0.983  !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    45.30   3290    2043   70990  11242    100.0    0.978  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    102    45.30   2972    1668   47983  11640     96.1    1.164

Code:

Cartridge          : .243 Win.
Bullet             : .243, 85, Sierra HPBT 1530
Useable Case Capaci: 50.398 grain H2O = 3.272 cm³
Cartridge O.A.L. L6: 2.710 inch = 68.83 mm
Barrel Length      : 22.0 inch = 558.8 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 59400 psi, or 409 MPa
or a maximum loading ratio or filling of 112 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

11 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
Alliant Reloder-26                 102.6     51.2     3.32    3293    99.9    59400   13447   1.045  ! Near Maximum !
ReloadSwiss RS 60                   93.9     45.7     2.96    3261   100.0    59400   12191   1.030  ! Near Maximum !
Norma MRP                          103.3     50.1     3.25    3261    98.5    59400   13384   1.042  ! Near Maximum !
Alliant Reloder-25                 111.3     51.4     3.33    3261    99.8    59400   13023   1.036  ! Near Maximum !
ReloadSwiss RS 70                   99.9     49.4     3.20    3250    98.9    59400   13031   1.031  ! Near Maximum !
Vihtavuori N560                    105.0     49.8     3.23    3244    95.3    59400   13437   1.039  ! Near Maximum !
Elcho 17                            92.9     45.2     2.93    3236   100.0    59400   12123   1.037  ! Near Maximum !
Alliant Reloder-17                  92.9     45.2     2.93    3236   100.0    59400   12123   1.037  ! Near Maximum !
IMR 7828                           109.4     49.4     3.20    3229    95.8    59400   13051   1.030  ! Near Maximum !
IMR 7828 SSC                       103.5     49.4     3.20    3229    95.8    59400   13051   1.030  ! Near Maximum !
SNPE Vectan SP 12                  107.4     53.3     3.45    3228    96.4    59400   13162   1.035  ! Near Maximum !
PB Clermont PCL 517                107.6     53.3     3.46    3227    96.3    59400   13174   1.035  ! Near Maximum !
Raufoss RA15                       105.3     49.4     3.20    3227    97.3    59400   13064   1.043  ! Near Maximum !
Bofors RP5/NP ~approximation       105.3     49.4     3.20    3227    97.3    59400   13064   1.043  ! Near Maximum !
Alliant Reloder-22                 105.3     49.4     3.20    3227    97.3    59400   13064   1.043  ! Near Maximum !
Bofors RP15                        108.1     49.7     3.22    3224    97.1    59400   13058   1.044  ! Near Maximum !
Winchester WXR                     108.1     49.7     3.22    3224    97.1    59400   13058   1.044  ! Near Maximum !
Accurate MAGPRO                    105.2     52.0     3.37    3223    93.7    59400   13367   1.047  ! Near Maximum !
Alliant Reloder-23                 108.1     49.1     3.18    3219   100.0    59400   12124   1.047  ! Near Maximum !
ADI AR 2213                        104.4     49.0     3.18    3213    95.6    59400   12888   1.029  ! Near Maximum !
Alliant Reloder-16                  99.3     44.9     2.91    3210   100.0    59400   12015   1.047  ! Near Maximum !
Somchem S365                        99.4     45.9     2.98    3200   100.0    59400   11583   1.052  ! Near Maximum !
ReloadSwiss RS 62                   96.1     46.8     3.03    3197    99.8    59400   12194   1.057  ! Near Maximum !
Ramshot Magnum                     104.8     53.0     3.44    3195    98.0    59400   12475   1.039  ! Near Maximum !
PB Clermont PCL 518                 98.2     47.1     3.05    3192    98.9    59400   12337   1.045  ! Near Maximum !
PB Clermont PCL 511                 94.3     46.7     3.02    3192    99.1    59400   12289   1.045  ! Near Maximum !
ADI AR 2209                        101.3     46.8     3.03    3191    97.0    59400   12403   1.031  ! Near Maximum !
Hodgdon H414                        92.1     45.2     2.93    3191    98.5    59400   12315   1.045  ! Near Maximum !
Winchester 760                      92.1     45.2     2.93    3191    98.5    59400   12315   1.045  ! Near Maximum !
Ramshot Hunter                      97.4     46.7     3.03    3190    99.1    59400   12270   1.045  ! Near Maximum !
ADI AP 2214                        108.1     52.1     3.38    3189    95.8    59400   12666   1.030  ! Near Maximum !
Rottweil R905                      106.4     49.1     3.18    3187    95.2    59400   12622   1.043  ! Near Maximum !
Alliant Reloder-19                 101.8     47.3     3.07    3186    97.1    59400   12460   1.039  ! Near Maximum !
Norma MRP 2                        112.0     52.0     3.37    3184    95.7    55574   13308   1.078  ! Near Maximum !
Bofors RP30                        112.0     52.0     3.37    3184    95.7    55574   13308   1.078  ! Near Maximum !
Norma URP                           97.1     44.6     2.89    3181    99.8    59400   11917   1.048  ! Near Maximum !
Bofors RP19 ~approximation          97.1     44.6     2.89    3181    99.8    59400   11913   1.049  ! Near Maximum !
Bofors RP14 ~approximation         102.6     47.6     3.09    3178    97.1    59400   12360   1.040  ! Near Maximum !
Vihtavuori N550                     94.2     44.7     2.90    3178    99.7    59400   12019   1.053  ! Near Maximum !
Accurate 4350                       96.4     44.8     2.90    3176    99.8    59400   11930   1.066  ! Near Maximum !
Vihtavuori N570                    112.0     54.9     3.55    3175    89.4    54626   13935   1.081  ! Near Maximum !
Norma 204                           96.6     46.3     3.00    3165    96.8    59400   12150   1.039  ! Near Maximum !
Raufoss RA4                         99.8     46.3     3.00    3165    96.8    59400   12150   1.039  ! Near Maximum !
Bofors RP4 ~approximation           99.8     46.3     3.00    3165    96.8    59400   12150   1.039  ! Near Maximum !
Bofors RP5 NT ~approximation       107.8     51.1     3.31    3163    93.2    59400   12485   1.035  ! Near Maximum !
IMR 4831                           101.8     45.3     2.94    3160    99.9    59400   11668   1.058  ! Near Maximum !
Hodgdon H4831 SC                   103.0     48.4     3.13    3153    94.9    59400   12131   1.037  ! Near Maximum !
Hodgdon H4831                      107.1     48.4     3.13    3153    94.9    59400   12131   1.037  ! Near Maximum !
Somchem S385                       102.1     47.9     3.11    3149    98.0    59400   11991   1.059  ! Near Maximum !
Hodgdon Hybrid 100V                 99.7     44.8     2.90    3146   100.0    59400   11037   1.047  ! Near Maximum !
Bofors RP4 NT ~approximation        97.4     45.9     2.98    3146    98.3    59400   11833   1.050  ! Near Maximum !
Lovex S071                         111.4     48.9     3.17    3138    99.1    59400   11763   1.073  ! Near Maximum !
Accurate 3100                      105.4     48.9     3.17    3138    99.1    59400   11763   1.073  ! Near Maximum !
Lovex S070                          96.6     44.4     2.88    3135    98.6    59400   11698   1.057  ! Near Maximum !
Rottweil R903                       92.0     42.3     2.74    3133   100.0    59400   11076   1.064  ! Near Maximum !
Rottweil R904                      100.5     46.0     2.98    3132    95.8    59400   11800   1.040  ! Near Maximum !
Winchester Supreme 780             100.4     49.2     3.19    3132    97.0    59400   11783   1.045  ! Near Maximum !
Somchem S355                        92.1     41.9     2.71    3129   100.0    59400   11067   1.057  ! Near Maximum !
Vihtavuori N165                    107.3     49.3     3.20    3129    97.7    59400   11653   1.050  ! Near Maximum !
Hodgdon H1000                      112.0     51.5     3.34    3128    94.9    56040   12445   1.059  ! Near Maximum !
ADI AR 2217                        112.0     51.5     3.34    3128    94.9    56040   12445   1.059  ! Near Maximum !
Lovex S065                          95.5     43.4     2.81    3118    99.3    59400   11341   1.055  ! Near Maximum !
IMR 4955 Enduron                   104.0     47.0     3.05    3118    95.1    59400   11756   1.040  ! Near Maximum !
Bofors RP7                          94.4     43.1     2.79    3118    97.9    59400   11483   1.049  ! Near Maximum !
Rottweil R907                       94.4     43.1     2.79    3118    97.9    59400   11483   1.049  ! Near Maximum !
IMR 4007 SSC                        91.4     43.1     2.79    3117    97.9    59400   11475   1.049  ! Near Maximum !
Vihtavuori N160                    107.2     47.8     3.09    3109    95.7    59400   11543   1.044  ! Near Maximum !
Somchem S361                        99.3     49.1     3.18    3087    95.0    59400   11444   1.054  ! Near Maximum !
Alliant Reloder-33                 112.0     56.4     3.66    3085    88.5    51444   13420   1.116  ! Near Maximum !
ADI AR 2225                        112.0     52.3     3.39    3050    96.5    48439   12995   1.139
Hodgdon Retumbo                    112.0     52.3     3.39    3050    96.5    48439   12995   1.139
ReloadSwiss RS 80                  112.0     56.4     3.66    3029    88.0    49081   13193   1.139
IMR 7977 Enduron                   108.2     49.7     3.22    3026    86.9    59400   10957   1.047  ! Near Maximum !
Lovex D100                         112.0     56.0     3.63    3025    84.5    57487   11420   1.068  ! Near Maximum !

mjcmichigan · May 23, 2018

Thank you DrMike!

Yes 243Win.

Plan to bake off 4831 vs rl-26, maybe 4350 too. The IMR perform well in this gun. Have 4# of Rl-26 on the way

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mjcmichigan · May 24, 2018

mjcmichigan":2nm7675c said:
Thank you DrMike!

Yes 243Win.

Plan to bake off 4831 vs rl-26, maybe 4350 too. The IMR perform well in this gun. Have 4# of Rl-26 on the way

Sent from my iPhone using Tapatalk

FYI, loaded ladder tests for IMR 4831 and RL26.

Maybe This weekend.

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mjcmichigan · Jun 10, 2018

Hi Dr. Mike,

Finally got to shoot the ladder tests.

SGK HPBT 85gn
IMR 4831
41.7 2882
42.1 2908
42.6 2941
43.0 2985
43.5 3053
43.9 3045
44.4 3116
44.9 3126
45.3 3220

RL26
46.7 3050
47.2 3061
47.7 3105
48.2 3160
48.7 3170
49.2 3249
49.7 3240
50.2 3355
50.7 3369
51.2 3439

Both grouped the ladder test in 2”

Will try the RL26 at 50.2-50.7.

And IMR 4831 44.4-44.9

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truck driver · Jun 10, 2018

49.7gr Rl 26 is where I would look since you have a flat spot there and only a 6fps spread between 49.2gr and 50.2gr.
I don't care for what I see with the 4831, too much spread. but JMO

mjcmichigan · Jun 10, 2018

I was reviewing my QL report. The RL26 is running hot at the higher loads. I’d be wish to stay was 49,2gn, assuming verification.

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