.308 Win RL-26 & StaBall 6.5

[HAWKEYESATX]

Does anyone have any load data for the .308 win with StaBall 6.5 or RL-26 powders?

I found some old QL data for other .308 Win loads, but they don’t have RL-26, or StaBall 6.5 info.

I hope someone has some loads they’ve done with either.

Hawk

 

[DrMike]

Cartridge          : .308 Win. (SAAMI)
Bullet             : .308, 150, Nosler PART SP 16329
Useable Case Capaci: 50.085 grain H2O = 3.252 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Winchester 6,5 StaBall *T*C

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0  101    50.04   2548    2163   41633   7767     94.3    1.193
-09.0  102    50.60   2580    2216   43195   7861     94.9    1.173
-08.0  103    51.15   2611    2271   44828   7953     95.4    1.153
-07.0  104    51.71   2643    2326   46532   8040     95.9    1.134
-06.0  105    52.26   2675    2382   48313   8124     96.4    1.115
-05.0  106    52.82   2706    2440   50175   8204     96.9    1.096
-04.0  107    53.38   2738    2497   52124   8280     97.3    1.078
-03.0  109    53.93   2770    2556   54166   8351     97.7    1.060  ! Near Maximum !
-02.0  110    54.49   2802    2616   56304   8418     98.0    1.042  ! Near Maximum !
-01.0  111    55.04   2834    2676   58546   8481     98.4    1.024  ! Near Maximum !
+00.0  112    55.60   2867    2737   60898   8539     98.7    1.007  ! Near Maximum !
+01.0  113    56.16   2899    2799   63370   8591     99.0    0.990  !DANGEROUS LOAD-DO NOT USE!
+02.0  114    56.71   2931    2862   65967   8638     99.2    0.973  !DANGEROUS LOAD-DO NOT USE!
+03.0  115    57.27   2964    2925   68699   8681     99.4    0.957  !DANGEROUS LOAD-DO NOT USE!
+04.0  116    57.82   2996    2990   71574   8717     99.6    0.941  !DANGEROUS LOAD-DO NOT USE!
+05.0  118    58.38   3028    3055   74607   8748     99.7    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    112    55.60   3005    3008   73006   8268    100.0    0.934  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    112    55.60   2674    2382   50055   8278     92.3    1.102

 

[DrMike]

Cartridge          : .308 Win. (SAAMI)
Bullet             : .308, 150, Nosler AccuBond 56719
Useable Case Capaci: 47.939 grain H2O = 3.113 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Winchester 6,5 StaBall *T*C

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0  102    48.51   2521    2116   41517   7444     93.6    1.199
-09.0  103    49.05   2552    2169   43095   7537     94.2    1.178
-08.0  104    49.59   2584    2223   44746   7627     94.8    1.159
-07.0  105    50.13   2615    2278   46472   7714     95.3    1.139
-06.0  107    50.67   2647    2334   48278   7797     95.8    1.120
-05.0  108    51.21   2679    2391   50169   7876     96.3    1.101
-04.0  109    51.74   2711    2448   52150   7951     96.8    1.082
-03.0  110    52.28   2743    2507   54228   8023     97.2    1.064  ! Near Maximum !
-02.0  111    52.82   2776    2566   56407   8090     97.6    1.046  ! Near Maximum !
-01.0  112    53.36   2808    2626   58697   8152     98.0    1.028  ! Near Maximum !
+00.0  113    53.90   2840    2687   61102   8210     98.3    1.010  ! Near Maximum !
+01.0  114    54.44   2873    2749   63632   8263     98.6    0.993  !DANGEROUS LOAD-DO NOT USE!
+02.0  116    54.98   2905    2812   66295   8311     98.9    0.976  !DANGEROUS LOAD-DO NOT USE!
+03.0  117    55.52   2938    2875   69104   8354     99.2    0.959  !DANGEROUS LOAD-DO NOT USE!
+04.0  118    56.06   2971    2940   72066   8392     99.4    0.943  !DANGEROUS LOAD-DO NOT USE!
+05.0  119    56.60   3004    3005   75193   8424     99.6    0.926  !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    113    53.90   2982    2962   73235   7976    100.0    0.937  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    113    53.90   2646    2332   50231   7921     91.6    1.106

 

[SJB358]

I think in use you'd find it really hard to make much speed from 26 in the 308. SB6.5 is probably okay, maybe with heavy bullets in the 308, about like RL17.

 

[HAWKEYESATX]

@DrMike

Thank you so very much! I do greatly appreciate everything you do for me and the reloading community on here.

Hawk

 

[HAWKEYESATX]

I think in use you'd find it really hard to make much speed from 26 in the 308. SB6.5 is probably okay, maybe with heavy bullets in the 308, about like RL17.

Yeah, I think you’re right on that one.

Hawk

 

[clearwater]

I like RX17 with 178 grain. Accurate, not super speedy tho, 2550 out of 22" barrel.

 

[SJB358]

I like RX17 with 178 grain. Accurate, not super speedy tho, 2550 out of 22" barrel.

That's a pretty good load though! I bet that bullet would act real decent at those speeds.

 

[RL338]

RL26 is just to slow for 308 Win. Never tried StaBall6.5 in 308 but in other calibers and never found out what the hype was all about. Now RL17 is the ticket for 200gr + in 308. Burned a bunch under 208 Amax and 210 VLDs.