Need some data QL

HOGWILD338-378 · Apr 7, 2014

338-378 Weatherby
26 inch Barrel
Speer 225 gr TBBC #1775
No specific powder just looking at a starting point but you know me probably be H1000, RL25, not sure what I wanta start with as I was told by Speer these were discontinued and they had no info for my Bee? Thanks guys!

DrMike · Apr 7, 2014

Code:

Cartridge          : .338-378 Weath. Mag.
Bullet             : .338, 225, Speer TBBC 1775
Useable Case Capaci: 125.861 grain H2O = 8.172 cm³
Cartridge O.A.L. L6: 3.750 inch = 95.25 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : Hodgdon H1000

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   81    92.40   2519    3171   31762  11163     93.6    1.668
-18.0   83    94.71   2584    3337   33972  11500     94.9    1.625
-16.0   85    97.02   2649    3506   36342  11818     96.0    1.584
-14.0   87    99.33   2714    3681   38887  12114     97.0    1.545
-12.0   89   101.64   2779    3859   41619  12386     97.9    1.496
-10.0   91   103.95   2844    4041   44554  12632     98.6    1.449
-08.0   93   106.26   2909    4226   47710  12850     99.2    1.403
-06.0   95   108.57   2973    4415   51108  13038     99.6    1.359
-04.0   97   110.88   3036    4607   54766  13195     99.9    1.316  ! Near Maximum !
-02.0   99   113.19   3100    4800   58716  13319    100.0    1.275  ! Near Maximum !
+00.0  101   115.50   3162    4996   62979  13416    100.0    1.235  ! Near Maximum !
+02.0  103   117.81   3224    5194   67588  13508    100.0    1.197  !DANGEROUS LOAD-DO NOT USE!
+04.0  105   120.12   3286    5394   72556  13595    100.0    1.160  !DANGEROUS LOAD-DO NOT USE!
+06.0  107   122.43   3347    5596   77895  13677    100.0    1.124  !DANGEROUS LOAD-DO NOT USE!
+08.0  109   124.74   3408    5801   83660  13753    100.0    1.090  !DANGEROUS LOAD-DO NOT USE!
+10.0  111   127.05   3468    6008   89895  13824    100.0    1.056  !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    101   115.50   3288    5400   76483  12907    100.0    1.141  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    101   115.50   2973    4417   50634  13637     97.4    1.358

Code:

Cartridge          : .338-378 Weath. Mag.
Bullet             : .338, 225, Speer TBBC 1775
Useable Case Capaci: 125.861 grain H2O = 8.172 cm³
Cartridge O.A.L. L6: 3.750 inch = 95.25 mm
Barrel Length      : 26.0 inch = 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 63000 psi, or 434 MPa
or a maximum loading ratio or filling of 110 %
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 !

59 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
---------------------------------  -----------------------------------------------------------------
Vihtavuori N570                     99.8    122.1     7.91    3249    98.9    63000   15882   1.254  ! Near Maximum !
Alliant Reloder-33                 100.2    127.7     8.28    3232    99.1    63000   15648   1.259  ! Near Maximum !
Alliant Reloder-50                 105.8    132.8     8.61    3224    98.8    63000   15954   1.285  ! Near Maximum !
Hodgdon H870                       105.8    126.8     8.22    3220    99.7    63000   15222   1.261  ! Near Maximum !
Hodgdon Retumbo                    103.4    120.6     7.82    3202   100.0    63000   13763   1.247  ! Near Maximum !
Vihtavuori N560                     91.8    108.8     7.05    3185   100.0    63000   14233   1.248  ! Near Maximum !
Accurate MAGPRO                     92.0    113.5     7.35    3179    99.6    63000   14447   1.257  ! Near Maximum !
Norma MRP 2                         99.1    114.9     7.45    3178   100.0    63000   14082   1.264  ! Near Maximum !
IMR 7828 SSC                        90.8    108.2     7.01    3175   100.0    63000   13766   1.238  ! Near Maximum !
IMR 7828                            96.0    108.2     7.01    3175   100.0    63000   13766   1.238  ! Near Maximum !
Hodgdon H1000                      100.7    115.5     7.49    3163   100.0    63000   13417   1.235  ! Near Maximum !
Vihtavuori 24N41                   103.0    127.3     8.25    3158    94.8    63000   14737   1.240  ! Near Maximum !
Hodgdon 50BMG                      108.4    127.6     8.27    3156    91.4    63000   15089   1.248  ! Near Maximum !
Alliant Reloder-25                  96.9    111.8     7.24    3154   100.0    63000   13068   1.254  ! Near Maximum !
Alliant Reloder-22                  92.1    108.0     7.00    3152   100.0    63000   13515   1.253  ! Near Maximum !
Winchester WXR                      94.6    108.6     7.03    3152   100.0    63000   13541   1.254  ! Near Maximum !
Accurate 8700                      110.0    133.2     8.63    3149    98.6    61722   14408   1.260  ! Near Maximum !
Hodgdon US 869                     108.0    133.4     8.65    3144    94.9    63000   14748   1.255  ! Near Maximum !
Vihtavuori 20N29                   110.0    137.3     8.90    3144    96.9    61968   14847   1.276  ! Near Maximum !
Ramshot Magnum                      91.9    116.1     7.52    3123   100.0    63000   12871   1.258  ! Near Maximum !
Hodgdon H4831                       94.9    107.0     6.94    3110    99.9    63000   13056   1.239  ! Near Maximum !
Hodgdon H4831 SC                    91.3    107.0     6.94    3110    99.9    63000   13056   1.239  ! Near Maximum !
Vihtavuori N170                    103.6    118.9     7.71    3103    97.9    63000   13747   1.264  ! Near Maximum !
Vihtavuori N160                     95.4    106.1     6.87    3066   100.0    63000   12331   1.243  ! Near Maximum !
Vihtavuori N165                     94.8    108.8     7.05    3063   100.0    63000   12091   1.256  ! Near Maximum !
Accurate 3100                       92.4    107.2     6.95    3048   100.0    63000   11914   1.284  ! Near Maximum !

HOGWILD338-378 · Apr 7, 2014

Thanks Dr. I think these will be my meat run go to rounds as long as I can get them to shoot as I hope they will ! RL33 will for sure be given a chance as well as MRP ! Appreciate the data Mike :grin:

DrMike · Apr 7, 2014

You need to lay your hands on some N570. It has surely performed well for me in several large capacity cases over the years.

HOGWILD338-378 · Apr 7, 2014

Sounds good and ya never know it could be in my stock but if I do have it I could not load very many with 1 Lb :lol: powder should be hitting stores soon as it has been a while ! Thanks for the suggestion :mrgreen: