QL request for 260 Rem

wvaredneck · Apr 19, 2016

Somewhat new to the forum but have been doing a lot of reading on it. I was wonder if somebody could run a QL request for the 260 with Reloader 23 with 130 Nolser AB? There is some data for 140 AB but cant seem to find anything on the 130. Any help would be great.

RiverRider · Apr 19, 2016

Code:

Cartridge          : .260 Rem
Bullet             : .264, 130, Nosler AccuBond 56902
Useable Case Capaci: 46.056 grain H2O = 2.990 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 23.9 inch = 607.1 mm
Powder             : Alliant Reloder-23

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.253% 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

-02.5  111    46.30   2883    2399   54772   9896    100.0    1.197  
-02.3  112    46.42   2891    2412   55295   9904    100.0    1.191  
-02.0  112    46.54   2898    2425   55823   9912    100.0    1.186  
-01.8  112    46.66   2906    2438   56357   9920    100.0    1.181  
-01.5  113    46.78   2914    2451   56895   9928    100.0    1.177  
-01.3  113    46.90   2921    2463   57441   9936    100.0    1.172  
-01.0  113    47.02   2929    2476   57992   9943    100.0    1.167  
-00.8  114    47.14   2937    2489   58550   9951    100.0    1.162  
-00.5  114    47.26   2944    2502   59114   9959    100.0    1.157  
-00.3  114    47.38   2952    2515   59684   9966    100.0    1.152  
+00.0  114    47.50   2960    2529   60257   9974    100.0    1.147  
+00.3  115    47.62   2967    2542   60841   9981    100.0    1.143  
+00.5  115    47.74   2975    2555   61434   9989    100.0    1.138  
+00.8  115    47.86   2983    2568   62032   9996    100.0    1.133  
+01.0  116    47.98   2990    2581   62636  10003    100.0    1.128  
+01.3  116    48.10   2998    2594   63246  10010    100.0    1.124  

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    114    47.50   3081    2740   75234   9526    100.0    1.057  
Data for burning rate decreased by 10% relative to nominal value:
-Ba    114    47.50   2772    2218   47765  10270     97.6    1.267

Wyo7200 · Apr 19, 2016

Kinda wondering why that QL isn't flagging the near SAAMI max like it normally does... RR, is that a modified cartridge? Just asking because the abbreviated ".260 Rem" at the top.

This is with my Lapua case capacity- .260 Remington SAAMI.

Code:

Cartridge          : .260 Remington
Bullet             : .264, 130, Nosler AccuBond 56902
Useable Case Capaci: 47.189 grain H2O = 3.064 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-23

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   87    37.20   2267    1484   26446   8192     92.6    1.648
-18.0   90    38.13   2327    1563   28261   8455     93.9    1.603
-16.0   92    39.06   2387    1645   30210   8704     95.1    1.560
-14.0   94    39.99   2448    1730   32305   8938     96.2    1.518
-12.0   96    40.92   2508    1816   34559   9155     97.2    1.476
-10.0   98    41.85   2569    1905   36985   9353     98.0    1.436
-08.0  101    42.78   2629    1996   39600   9532     98.7    1.390
-06.0  103    43.71   2689    2088   42422   9690     99.2    1.346
-04.0  105    44.64   2749    2182   45470   9826     99.6    1.303
-02.0  107    45.57   2809    2278   48766   9938     99.9    1.262
+00.0  109    46.50   2868    2375   52338  10026    100.0    1.223  ! Near Maximum !
+02.0  111    47.43   2927    2473   56210  10094    100.0    1.185  ! Near Maximum !
+04.0  114    48.36   2985    2573   60417  10158    100.0    1.148  !DANGEROUS LOAD-DO NOT USE!
+06.0  116    49.29   3043    2674   64997  10217    100.0    1.112  !DANGEROUS LOAD-DO NOT USE!
+08.0  118    50.22   3101    2776   69993  10272    100.0    1.077  !DANGEROUS LOAD-DO NOT USE!
+10.0  120    51.15   3158    2880   75450  10323    100.0    1.044  !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    109    46.50   2998    2595   65187   9566    100.0    1.124  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    109    46.50   2672    2062   41667  10101     96.1    1.352

Its interesting to see how different the barrel times are between the two QL's.

gerry · Apr 19, 2016

May have to give RL 23 in my 260 Rem a try when some appears up here, should also work well in the 6.5x55.

RiverRider · Apr 20, 2016

Wyo, no, it's not a modified cartridge. The case volume used was the default value. The barrel length was set at 23.9 because that was the last value I entered for one of my own rifles. The "near maximum" and "do not use" flags are absent because I always copy the results to a .txt file and edit those out for readability's sake.

35 Whelen · Apr 20, 2016

Wow, had no idea you could get .270 velocity's with 130 grain bullets from the little .260 case !!
Pretty amazing stuff right there..................................
I messed around with a .260 a few years ago with short barrel on Rem model 7, and we struggled to get 2800fps outta it !!! That first load of 46grs bringing just under 2900fps blows my mind, considering we used to need to cram 60 grs of 4831 into a .270 to get the same velocity! That is amazing! :shock:
Good luck with your reloading.
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