Speer

[sdemon367]

Hello i bought some .223 70gr speer spitzer bullets and can not find and load data for it. Im using ramshot tac powder. Ive been to speer's website and found the load data there for the bullet but they didnt list the tac powder. I went to ramshots wedsite and looked under the powder data but they didnt list the bullet. Im not really sure how many grains of powder to use.

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[DrMike]

What cartridge are you loading for?

 

[sdemon367]

.223 rem

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[DrMike]

TAC may not be the best propellant for that bullet/cartridge combo. However, here is a QL projection for the load.

Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 70, Speer SSP 1053
Useable Case Capaci: 25.740 grain H2O = 1.671 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Ramshot TAC

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   78    20.00   2270     801   28417   5876     81.1    1.387
-18.0   80    20.50   2326     841   30268   6081     82.4    1.350
-16.0   82    21.00   2382     882   32241   6283     83.8    1.315
-14.0   84    21.50   2439     925   34347   6483     85.1    1.280
-12.0   86    22.00   2496     968   36597   6680     86.3    1.246
-10.0   88    22.50   2553    1013   39000   6872     87.5    1.210
-08.0   90    23.00   2610    1059   41569   7060     88.7    1.176
-06.0   92    23.50   2667    1106   44315   7242     89.8    1.142
-04.0   94    24.00   2725    1154   47254   7419     90.9    1.109  ! Near Maximum !
-02.0   96    24.50   2782    1203   50401   7589     91.9    1.078  ! Near Maximum !
+00.0   98    25.00   2840    1253   53774   7753     92.9    1.047  ! Near Maximum !
+02.0  100    25.50   2898    1305   57392   7909     93.8    1.018  !DANGEROUS LOAD-DO NOT USE!
+04.0  102    26.00   2955    1358   61279   8056     94.6    0.990  !DANGEROUS LOAD-DO NOT USE!
+06.0  104    26.50   3013    1411   65458   8195     95.5    0.962  !DANGEROUS LOAD-DO NOT USE!
+08.0  106    27.00   3071    1466   69959   8324     96.2    0.935  !DANGEROUS LOAD-DO NOT USE!
+10.0  108    27.50   3130    1522   74813   8443     96.9    0.910  !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     98    25.00   2988    1388   63475   7942     97.8    0.974  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     98    25.00   2657    1097   44496   7268     85.1    1.141

 

[DrMike]

Other possibilities for propellant:

Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 70, Speer SSP 1053
Useable Case Capaci: 25.740 grain H2O = 1.671 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length      : 22.0 inch = 558.8 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 54250 psi, or 374 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 !

Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
Alliant Reloder-17                 110.0     27.4     1.77    2981    96.4    54138    8904   1.016  ! Near Maximum !
Elcho 17                           110.0     27.4     1.77    2981    96.4    54138    8904   1.016  ! Near Maximum !
ReloadSwiss RS 60                  110.0     27.4     1.77    2967    97.0    52847    9031   1.026  ! Near Maximum !
Accurate 4064                      108.0     25.1     1.62    2932    99.7    54250    7983   1.060  ! Near Maximum !
Bofors RP3                         107.4     25.8     1.67    2930    97.4    54250    8229   1.041  ! Near Maximum !
Norma 203 old                      107.4     25.8     1.67    2930    97.4    54250    8229   1.041  ! Near Maximum !
Accurate 2495                      101.9     23.6     1.53    2929   100.0    54250    7700   1.064  ! Near Maximum !
Hodgdon H414                       109.1     27.4     1.77    2922    90.5    54250    8456   1.026  ! Near Maximum !
Winchester 760                     109.1     27.4     1.77    2922    90.5    54250    8456   1.026  ! Near Maximum !
Rottweil R903                      109.8     25.8     1.67    2920    97.1    54250    8129   1.042  ! Near Maximum !
Accurate 2520                       99.7     24.9     1.62    2919    99.0    54250    7891   1.044  ! Near Maximum !
Lovex D073.6                       102.0     24.9     1.62    2919    99.0    54250    7891   1.044  ! Near Maximum !
Somchem S355                       109.2     25.3     1.64    2906    96.8    54250    8069   1.042  ! Near Maximum !
Hodgdon H380                       105.8     25.6     1.66    2892    93.9    54250    8108   1.041  ! Near Maximum !
Vihtavuori N550                    110.0     26.7     1.73    2882    93.2    50357    8421   1.061  ! Near Maximum !
PB Clermont PCL 511                110.0     27.8     1.80    2877    90.7    51665    8399   1.048  ! Near Maximum !
Lovex D073.5                        95.0     24.2     1.57    2871    98.4    54250    7608   1.056  ! Near Maximum !
Accurate 2460                       94.7     24.2     1.57    2871    98.4    54250    7608   1.056  ! Near Maximum !
Rottweil R901                       99.9     22.5     1.46    2867    99.3    54250    7541   1.063  ! Near Maximum !
SNPE Vectan SP 7                    99.6     25.3     1.64    2858    93.7    54250    7791   1.047  ! Near Maximum !
Rottweil R907                      110.0     25.6     1.66    2827    89.6    54250    7718   1.049  ! Near Maximum !
Bofors RP7                         110.0     25.6     1.66    2827    89.6    54250    7718   1.049  ! Near Maximum !
IMR 4007 SSC                       106.5     25.6     1.66    2826    89.6    54250    7711   1.049  ! Near Maximum !

 

[darrelldavies51]

Dr mike have you got a quick load for .243 95 grn n/ Partition with n150

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[DrMike]

Cartridge          : .243 Win.
Bullet             : .243, 95, Nosler PART SP 16315
Useable Case Capaci: 49.789 grain H2O = 3.233 cm³
Cartridge O.A.L. L6: 2.710 inch = 68.83 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Vihtavuori N150

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   76    32.96   2432    1248   32451   8897     98.1    1.444
-18.0   78    33.78   2486    1303   34512   9095     98.7    1.412
-16.0   80    34.61   2539    1360   36691   9278     99.2    1.379
-14.0   82    35.43   2591    1416   38994   9445     99.6    1.340
-12.0   84    36.26   2643    1474   41428   9597     99.8    1.303
-10.0   86    37.08   2694    1531   44000   9731    100.0    1.266
-08.0   88    37.90   2745    1589   46717   9849    100.0    1.231
-06.0   89    38.73   2795    1648   49589   9959    100.0    1.197
-04.0   91    39.55   2844    1706   52625  10067    100.0    1.165  ! Near Maximum !
-02.0   93    40.38   2893    1765   55835  10172    100.0    1.134  ! Near Maximum !
+00.0   95    41.20   2941    1824   59230  10275    100.0    1.104  ! Near Maximum !
+02.0   97    42.02   2988    1884   62823  10376    100.0    1.076  !DANGEROUS LOAD-DO NOT USE!
+04.0   99    42.85   3035    1944   66626  10474    100.0    1.048  !DANGEROUS LOAD-DO NOT USE!
+06.0  101    43.67   3082    2004   70654  10569    100.0    1.021  !DANGEROUS LOAD-DO NOT USE!
+08.0  103    44.50   3129    2065   74923  10661    100.0    0.996  !DANGEROUS LOAD-DO NOT USE!
+10.0  105    45.32   3175    2126   79451  10751    100.0    0.971  !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     95    41.20   3025    1930   69025  10001    100.0    1.034  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     95    41.20   2814    1670   49301  10614     99.6    1.199

 

[Joec7651]

Accurate 2495 looks like it may be very consistent. With a load ratio of 101.9% and 100% propellant burned it has the makings for a very accurate load. It also has a little lower muzzle pressure which can assist too. Definitely one to try.

 

[DrMike]

Good observation. Spot on.

 

[darrelldavies51]

Thank Drmike i will give them a go

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