6.5x55 quick load request

[ldg397]

Wondering if someone could run this for me please?? 6.5x55 lapua brass, cci br2 primer, h4831sc powder, 120 grain ttsx? And the same all of the above except for a 140sst bullet.

Also this will be fired in modern 6.5x55 sako 85 action. I know I will have to work up to it but what is an acceptable estimated max pressure in a modern action??

 

[DrMike]

Cartridge : 6.5 x 55 Swedish
Bullet : .264, 120, Barnes 'TTSX'BT S 26430
Useable Case Capaci: 52.685 grain H2O = 3.421 cm³
Cartridge O.A.L. L6: 3.150 inch = 80.01 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Hodgdon H4831 SC

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 39.76 2261 1362 28374 8788 80.6 1.468
-18.0 83 40.75 2319 1433 30221 9123 82.1 1.432
-16.0 85 41.75 2378 1507 32189 9457 83.5 1.396
-14.0 87 42.74 2438 1583 34310 9786 84.9 1.361
-12.0 89 43.74 2498 1662 36574 10112 86.3 1.326
-10.0 91 44.73 2558 1744 39001 10431 87.7 1.293
-08.0 93 45.72 2620 1829 41605 10744 88.9 1.260
-06.0 95 46.72 2681 1916 44401 11048 90.2 1.229
-04.0 97 47.71 2743 2005 47406 11343 91.4 1.190 ! Near Maximum !
-02.0 99 48.71 2806 2098 50641 11627 92.5 1.154 ! Near Maximum !
+00.0 101 49.70 2869 2193 54126 11899 93.5 1.118 ! Near Maximum !
+02.0 103 50.69 2932 2291 57888 12157 94.5 1.084 !DANGEROUS LOAD-DO NOT USE!
+04.0 105 51.69 2996 2392 61952 12401 95.4 1.051 !DANGEROUS LOAD-DO NOT USE!
+06.0 107 52.68 3060 2495 66354 12628 96.3 1.019 !DANGEROUS LOAD-DO NOT USE!
+08.0 109 53.68 3125 2602 71126 12837 97.0 0.988 !DANGEROUS LOAD-DO NOT USE!
+10.0 111 54.67 3189 2711 76312 13027 97.7 0.957 !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 49.70 3032 2449 64862 12193 98.5 1.034 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 101 49.70 2668 1896 44505 11061 85.1 1.226

Cartridge : 6.5 x 55 Swedish
Bullet : .264, 140, Hornady SST 26302
Useable Case Capaci: 51.299 grain H2O = 3.331 cm³
Cartridge O.A.L. L6: 3.150 inch = 80.01 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Hodgdon H4831 SC

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 79 37.84 2123 1401 28297 8862 83.8 1.593
-18.0 81 38.79 2178 1474 30161 9188 85.3 1.553
-16.0 83 39.73 2233 1550 32153 9510 86.6 1.514
-14.0 85 40.68 2288 1628 34280 9826 88.0 1.475
-12.0 87 41.62 2344 1708 36554 10137 89.3 1.438
-10.0 89 42.57 2400 1791 38985 10439 90.5 1.393
-08.0 91 43.52 2456 1876 41587 10734 91.6 1.350
-06.0 93 44.46 2513 1963 44374 11018 92.7 1.310
-04.0 95 45.41 2570 2053 47361 11292 93.8 1.270 ! Near Maximum !
-02.0 97 46.35 2627 2146 50569 11554 94.7 1.232 ! Near Maximum !
+00.0 99 47.30 2685 2240 54015 11802 95.6 1.195 ! Near Maximum !
+02.0 101 48.25 2742 2337 57720 12036 96.4 1.159 !DANGEROUS LOAD-DO NOT USE!
+04.0 103 49.19 2800 2437 61712 12254 97.2 1.124 !DANGEROUS LOAD-DO NOT USE!
+06.0 105 50.14 2857 2538 66017 12455 97.8 1.090 !DANGEROUS LOAD-DO NOT USE!
+08.0 107 51.08 2915 2642 70644 12637 98.4 1.058 !DANGEROUS LOAD-DO NOT USE!
+10.0 109 52.03 2973 2748 75625 12801 98.9 1.027 !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 99 47.30 2827 2484 64704 11908 99.4 1.105 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 99 47.30 2504 1949 44209 11129 88.0 1.308

 

[Jimbeaux82]

I have loaded quite a lot of 6.5 x 55 using the 140 gr SST and H4831SC powder. First off, my rifle is a CZ 550 FS, 20" barrel, which is a strong, modern version on the Mauser 98 action. So I am loading it a bit hotter then for the weaker M96 actions most reloading manuals load for.

I have settled on 50.5 grs H4831sc, 140 gr SST, either Fed or Rem brass, and cci 200 primers for 2740 fps with easy bolt lift, no ejector marks or any other obvious pressure signs except for flat primer. I get around 1.25 - 1.5", 3 shot groups with this load. I try to develop all of my loads in the hot Louisiana summer so that I am operating under worst case conditions. At 51.0 grs (2770 fps) I start getting some heavier bolt lift, and ejector marks on the brass and at 52.0 grs (2800 fps) I am getting definite pressure signs. Therefore, I have settled on the 50.5 grs as my max in this rifle. I have killed 20 plus deer with this combination without any issues.

 

[vodekzz]

My Sako 85 likes 140 AB with 48 gr of H4831 sc.
For 120 BT or 125 Partitions IMR 4831 works good.
140 AB is very accurate load and works very well on deer. My COAL is 3.1 for 140 AB with Lapua brass and CC2 primers. This brass last forever.

 

[ldg397]

Thanks for the information everyone. Can't wait to get started. I will probably start with the ttsx. My rifle already loves the 140sst superformance factory load shoots about an inch best being 3/4". I have both bullets so I can always come back to the sst.

 

[SJB358]

Man, all of this 6.5x55 talk makes a guy really want one!

 

[steve4102]

Here it is in an easier to read format when brought up to 62K psi in a modern action.

 Cartridge          : 6.5 x 55 Swedish
Bullet             : .264, 120, Barnes 'TTSX'BT S 26430
Cartridge O.A.L. L6: 3.150 inch or 80.01 mm
Barrel Length      : 22.0 inch or 558.8 mm
Powder             : Hodgdon H4831 SC

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   83    40.55   2307    1419   29836   9055     81.8    1.449
-18.0   85    41.57   2367    1493   31824   9396     83.2    1.411
-16.0   87    42.58   2428    1571   33955   9733     84.7    1.373
-14.0   89    43.59   2489    1651   36241  10065     86.1    1.337
-12.0   91    44.61   2551    1734   38693  10392     87.5    1.301
-10.0   93    45.62   2613    1820   41328  10712     88.8    1.266
-08.0   95    46.63   2676    1908   44160  11023     90.1    1.231
-06.0   97    47.65   2739    2000   47209  11325     91.3    1.192
-04.0   99    48.66   2803    2094   50494  11615     92.4    1.156
-02.0  101    49.68   2868    2191   54036  11893     93.5    1.119  ! Near Maximum !
+00.0  103    50.69   2932    2291   57874  12156     94.5    1.084  ! Near Maximum !
+02.0  105    51.70   2997    2394   62022  12404     95.4    1.050  !DANGEROUS LOAD-DO NOT USE!
+04.0  107    52.72   3063    2499   66521  12635     96.3    1.018  !DANGEROUS LOAD-DO NOT USE!
+06.0  109    53.73   3128    2608   71406  12848     97.1    0.986  !DANGEROUS LOAD-DO NOT USE!
+08.0  112    54.75   3194    2719   76704  13040     97.8    0.955  !DANGEROUS LOAD-DO NOT USE!
+10.0  114    55.76   3261    2833   82528  13211     98.4    0.925  !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    103    50.69   3093    2550   69374  12367     99.0    1.003  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    103    50.69   2730    1986   47505  11376     86.4    1.187

 

[steve4102]

 Cartridge          : 6.5 x 55 Swedish
Bullet             : .264, 120, Barnes 'TTSX'BT S 26430
Cartridge O.A.L. L6: 3.150 inch or 80.01 mm
Barrel Length      : 22.0 inch or 558.8 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 62000 psi, or 427 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 !

149 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
---------------------------------  -----------------------------------------------------------------
Norma MRP                          105.9     53.6     3.48    3113    98.9    62000   13709   1.050  ! Near Maximum !
Vihtavuori N560                    107.5     53.4     3.46    3094    95.9    62000   13795   1.048  ! Near Maximum !
SNPE Vectan SP 12                  109.8     56.9     3.69    3082    96.8    62000   13538   1.041  ! Near Maximum !
PB Clermont PCL 517                110.0     57.0     3.69    3081    96.7    62000   13552   1.041  ! Near Maximum !
Accurate MAGPRO                    107.8     55.7     3.61    3080    94.3    62000   13779   1.054  ! Near Maximum !
Bofors RP5/NP ~approximation       107.8     52.9     3.43    3077    97.8    62000   13386   1.053  ! Near Maximum !
Raufoss RA15                       107.8     52.9     3.43    3077    97.8    62000   13386   1.053  ! Near Maximum !
Alliant Reloder-22                 107.8     52.9     3.43    3077    97.8    62000   13386   1.053  ! Near Maximum !
IMR 7828 SSC                       105.9     52.8     3.42    3074    96.3    62000   13350   1.041  ! Near Maximum !
Elcho 17                            95.0     48.4     3.14    3070   100.0    62000   12219   1.052  ! Near Maximum !
Alliant Reloder-17                  95.0     48.4     3.14    3070   100.0    62000   12219   1.052  ! Near Maximum !
ADI AR 2213                        106.7     52.4     3.40    3058    96.1    62000   13190   1.041  ! Near Maximum !
Winchester WXR                     110.0     52.8     3.42    3053    97.4    60595   13317   1.065  ! Near Maximum !
Bofors RP15                        110.0     52.8     3.42    3053    97.4    60595   13317   1.065  ! Near Maximum !
Ramshot Magnum                     107.2     56.7     3.67    3050    98.2    62000   12805   1.046  ! Near Maximum !
Somchem S365                       101.7     49.1     3.18    3037   100.0    62000   11670   1.065  ! Near Maximum !
Rottweil R905                      108.9     52.5     3.40    3035    95.8    62000   12918   1.055  ! Near Maximum !
PB Clermont PCL 511                 96.5     49.9     3.24    3033    99.4    62000   12491   1.059  ! Near Maximum !
Ramshot Hunter                      99.7     50.0     3.24    3032    99.4    62000   12473   1.059  ! Near Maximum !
ADI AR 2209                        103.6     50.0     3.24    3031    97.5    62000   12637   1.046  ! Near Maximum !
Alliant Reloder-19                 104.2     50.6     3.28    3030    97.6    62000   12721   1.053  ! Near Maximum !
Hodgdon H414                        94.2     48.4     3.13    3027    98.9    62000   12480   1.061  ! Near Maximum !
Winchester 760                      94.2     48.4     3.13    3027    98.9    62000   12480   1.061  ! Near Maximum !
Bofors RP14 ~approximation         105.0     51.0     3.30    3023    97.6    62000   12626   1.054  ! Near Maximum !
ADI AP 2214                        110.0     55.5     3.59    3022    96.0    60921   12942   1.049  ! Near Maximum !
Norma URP                           99.2     47.7     3.09    3015    99.9    62000   12015   1.065  ! Near Maximum !
Bofors RP19 ~approximation          99.3     47.7     3.09    3015    99.9    62000   12012   1.065  ! Near Maximum !
IMR 7828                           110.0     51.9     3.36    3014    95.5    58283   13131   1.071  ! Near Maximum !
Vihtavuori N550                     96.4     47.8     3.10    3013    99.9    62000   12145   1.070  ! Near Maximum !
Accurate 4350                       98.4     47.8     3.10    3010   100.0    62000   11998   1.082  ! Near Maximum !
Bofors RP5 NT ~approximation       110.0     54.5     3.53    3005    93.6    61409   12811   1.050  ! Near Maximum !
Raufoss RA4                        102.0     49.5     3.21    3004    97.3    62000   12369   1.055  ! Near Maximum !
Norma 204                           98.8     49.5     3.21    3004    97.3    62000   12369   1.055  ! Near Maximum !
Bofors RP4 ~approximation          102.0     49.5     3.21    3004    97.3    62000   12369   1.055  ! Near Maximum !
Hodgdon H4831 SC                   105.3     51.7     3.35    2997    95.4    62000   12403   1.051  ! Near Maximum !
Hodgdon H4831                      109.5     51.7     3.35    2997    95.4    62000   12403   1.051  ! Near Maximum !
IMR 4831                           104.1     48.4     3.14    2997   100.0    62000   11766   1.074  ! Near Maximum !
SNPE Vectan SP 11                   92.7     46.5     3.01    2996   100.0    62000   11558   1.064  ! Near Maximum !
Somchem S385                       104.4     51.3     3.32    2994    98.4    62000   12219   1.072  ! Near Maximum !
Alliant Reloder-25                 110.0     53.1     3.44    2991    99.3    54502   13069   1.107  ! Near Maximum !
Accurate 3100                      107.7     52.3     3.39    2985    99.4    62000   11966   1.084  ! Near Maximum !
Bofors RP4 NT ~approximation        99.6     49.1     3.18    2984    98.7    62000   12012   1.066  ! Near Maximum !
Hodgdon Hybrid 100V                101.9     47.9     3.10    2979   100.0    62000   11085   1.064  ! Near Maximum !
Winchester Supreme 780             102.6     52.5     3.40    2979    97.4    62000   12046   1.057  ! Near Maximum !
Bofors RP11 ~approximation          90.2     43.8     2.84    2978   100.0    62000   11435   1.071  ! Near Maximum !
Raufoss RA11                        90.2     43.8     2.84    2978   100.0    62000   11435   1.071  ! Near Maximum !
Alliant Reloder-15                  90.2     43.8     2.84    2978   100.0    62000   11435   1.071  ! Near Maximum !
Vihtavuori N165                    109.8     52.8     3.42    2977    98.0    62000   11898   1.062  ! Near Maximum !
Norma 203B                          90.7     44.0     2.85    2975   100.0    62000   11334   1.072  ! Near Maximum !
Rottweil R904                      102.8     49.2     3.19    2971    96.3    62000   12009   1.057  ! Near Maximum !
Hodgdon H380                        91.6     45.4     2.94    2970    99.8    62000   11578   1.074  ! Near Maximum !
Lovex S070                          98.8     47.4     3.07    2969    99.0    62000   11835   1.075  ! Near Maximum !
Hodgdon H4350                      101.5     48.2     3.12    2968    98.4    62000   11764   1.060  ! Near Maximum !
IMR 4350                            99.6     48.1     3.12    2968    98.5    62000   11746   1.060  ! Near Maximum !
Bofors RP7 NT ~approximation        93.6     45.9     2.97    2966    99.1    62000   11482   1.048  ! Near Maximum !
Norma 203 old                       91.9     45.1     2.92    2964   100.0    62000   11149   1.085  ! Near Maximum !
Bofors RP3                          91.9     45.1     2.92    2964   100.0    62000   11149   1.085  ! Near Maximum !
IMR 4320                            92.2     44.1     2.86    2963   100.0    62000   11028   1.057  ! Near Maximum !
Rottweil R903                       94.0     45.1     2.92    2959   100.0    62000   11069   1.085  ! Near Maximum !
Elcho TR140 - preliminary data      91.2     45.7     2.96    2955    99.9    62000   11290   1.070  ! Near Maximum !
Somchem S355                        94.1     44.7     2.90    2954   100.0    62000   11072   1.079  ! Near Maximum !
Vihtavuori N160                    109.6     51.1     3.31    2953    96.2    62000   11778   1.060  ! Near Maximum !
Lovex S065                          97.6     46.4     3.01    2949    99.6    62000   11437   1.075  ! Near Maximum !
Rottweil R907                       96.5     46.0     2.98    2948    98.4    62000   11602   1.070  ! Near Maximum !
Bofors RP7                          96.5     46.0     2.98    2948    98.4    62000   11602   1.070  ! Near Maximum !
IMR 4007 SSC                        93.4     46.0     2.98    2947    98.4    62000   11594   1.070  ! Near Maximum !
Hodgdon VARGET                      93.1     43.7     2.83    2945   100.0    62000   11033   1.060  ! Near Maximum !
ADI AR 2208                         92.8     43.7     2.83    2945   100.0    62000   11033   1.060  ! Near Maximum !
Bofors RP3 NT ~approximation        95.2     45.9     2.98    2943    99.5    62000   11212   1.059  ! Near Maximum !
IMR 4064                            93.6     43.0     2.78    2937   100.0    62000   10837   1.065  ! Near Maximum !
Somchem S361                       101.6     52.5     3.41    2935    95.4    62000   11718   1.068  ! Near Maximum !
Lovex S062                          91.3     43.1     2.79    2931   100.0    62000   10649   1.079  ! Near Maximum !
Accurate 4064                       91.3     43.4     2.81    2922   100.0    62000   10447   1.106  ! Near Maximum !
Vihtavuori N150                     99.2     45.5     2.95    2914   100.0    62000   10410   1.077  ! Near Maximum !
Rottweil R902                       90.3     42.3     2.74    2913   100.0    62000   10475   1.083  ! Near Maximum !
Vihtavuori N540                     90.1     44.2     2.87    2911   100.0    62000   10391   1.077  ! Near Maximum !
Accurate 2700                       93.5     47.4     3.07    2899    98.2    62000   10948   1.073  ! Near Maximum !
Norma MRP 2                        110.0     53.4     3.46    2891    93.9    49542   13116   1.167