QL needed please

Idahotrophyhunter · Jul 6, 2013

Can anyone provide me with a Quick Load:

.270 Winchester
Imr 4831
130 nosler Partition?

Thanks so much!

FOTIS · Jul 6, 2013

Not in front of my home pc right now. You should max out at 58 gr at 3050 fps

DrMike · Jul 6, 2013

Code:

Cartridge          : .270 Win. (SAAMI)
Bullet             : .277, 130, Nosler PART SP 16322
Useable Case Capaci: 61.884 grain H2O = 4.018 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : IMR 4831

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   84    45.92   2610    1967   33218   8668     96.0    1.529
-18.0   86    47.07   2672    2061   35503   8886     96.8    1.491
-16.0   88    48.22   2734    2158   37938   9090     97.6    1.448
-14.0   90    49.36   2796    2256   40533   9279     98.3    1.404
-12.0   92    50.51   2857    2356   43299   9452     98.9    1.361
-10.0   95    51.66   2918    2457   46247   9608     99.3    1.320
-08.0   97    52.81   2978    2560   49391   9746     99.7    1.281
-06.0   99    53.96   3038    2664   52744   9865     99.9    1.243
-04.0  101    55.10   3097    2768   56323   9965    100.0    1.207  ! Near Maximum !
-02.0  103    56.25   3155    2874   60144  10047    100.0    1.172  ! Near Maximum !
+00.0  105    57.40   3213    2980   64227  10125    100.0    1.138  ! Near Maximum !
+02.0  107    58.55   3270    3087   68594  10199    100.0    1.106  !DANGEROUS LOAD-DO NOT USE!
+04.0  109    59.70   3327    3195   73268  10271    100.0    1.075  !DANGEROUS LOAD-DO NOT USE!
+06.0  111    60.84   3383    3304   78276  10338    100.0    1.045  !DANGEROUS LOAD-DO NOT USE!
+08.0  113    61.99   3439    3414   83649  10403    100.0    1.016  !DANGEROUS LOAD-DO NOT USE!
+10.0  116    63.14   3494    3525   89420  10463    100.0    0.988  !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    105    57.40   3322    3185   76791   9739    100.0    1.059  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    105    57.40   3047    2680   51836  10428     98.3    1.247

IdahoCTD · Jul 6, 2013

Try 55grs of 4350 too. That the last one I had would shoot that combo well under 1/2".

hubcap · Jul 6, 2013

One of my favorite loads in the .270 is 57.0 gr. of IMR-4831 with the 130 PT. Velocity is 3020 in a 22 inch barrel. This load came from Nosler manual no.1 and is an excellent load for me. Accuracy has always been sub moa in my rifles. For hunting I do tweak it up a bit. Acually, I have found that IMR-4831 works real well with all the nosler partitions from the 130 to the 160. Getting real 270 velocity and darn good accuracy has been no problem in my rifles.

DrMike · Jul 7, 2013

I just noted that I ran that particular simulation for a 26 inch barrel. Whilst pressures won't change, velocities will. Here's a projection with a 22 inch barrel.

Code:

Cartridge          : .270 Win. (SAAMI)
Bullet             : .277, 130, Nosler PART SP 16322
Useable Case Capaci: 61.884 grain H2O = 4.018 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 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 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   84    45.92   2484    1780   33218  10362     94.1    1.398
-18.0   86    47.07   2545    1870   35503  10658     95.1    1.363
-16.0   88    48.22   2607    1962   37938  10939     96.1    1.323
-14.0   90    49.36   2668    2055   40533  11204     97.0    1.282
-12.0   92    50.51   2729    2150   43299  11452     97.7    1.242
-10.0   95    51.66   2790    2248   46247  11681     98.4    1.204
-08.0   97    52.81   2851    2347   49391  11891     98.9    1.167
-06.0   99    53.96   2912    2447   52744  12079     99.4    1.131
-04.0  101    55.10   2971    2549   56323  12244     99.7    1.097  ! Near Maximum !
-02.0  103    56.25   3031    2652   60144  12387     99.9    1.064  ! Near Maximum !
+00.0  105    57.40   3090    2756   64227  12504    100.0    1.033  ! Near Maximum !
+02.0  107    58.55   3148    2861   68594  12603    100.0    1.002  !DANGEROUS LOAD-DO NOT USE!
+04.0  109    59.70   3206    2968   73268  12696    100.0    0.973  !DANGEROUS LOAD-DO NOT USE!
+06.0  111    60.84   3264    3075   78276  12786    100.0    0.945  !DANGEROUS LOAD-DO NOT USE!
+08.0  113    61.99   3321    3183   83649  12871    100.0    0.918  !DANGEROUS LOAD-DO NOT USE!
+10.0  116    63.14   3378    3293   89420  12951    100.0    0.891  !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    105    57.40   3208    2970   76791  12029    100.0    0.957  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    105    57.40   2915    2453   51836  12640     97.1    1.135