7mm WSM RL 26 & IMR 7977

[bigd7378]

Could one of you fine gentleman please run a couple quickloads for me...... 7mm WSM 2.86 oal 24" barrel 65,000 psi. I wanna see a 150 ABLR with RL 26 and IMR 7977 & same with 168 ABLR. Thanks you so much!!! Been running RL 25 and wanna try these new powders!

 

[FOTIS]

I have the newest version and 7977 is not listed yet

 

[bigd7378]

Fotis.... Could you run RL 26 for me with the two combos mentioned above? Thanks

 

[MAinAR]

This seems to be hard to find on Alliants site but this may help some too.
2015 Reloading Guide in pdf

http://www.alliantpowder.com/resources/ ... Powder.pdf

 

[FOTIS]

Cartridge          : 7 mm WSM
Bullet             : .284, 168, Nosler Accubond LR 58623 G7
Useable Case Capaci: 70.287 grain H2O = 4.564 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-26

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   87    60.30   2730    2779   43820  12102    100.0    1.441
-09.0   88    60.97   2760    2841   45434  12168    100.0    1.417
-08.0   88    61.64   2790    2904   47099  12230    100.0    1.394
-07.0   89    62.31   2820    2967   48818  12290    100.0    1.371
-06.0   90    62.98   2850    3030   50591  12350    100.0    1.349
-05.0   91    63.65   2880    3093   52427  12409    100.0    1.327
-04.0   92    64.32   2909    3157   54327  12466    100.0    1.305  ! Near Maximum !
-03.0   93    64.99   2938    3221   56297  12523    100.0    1.285  ! Near Maximum !
-02.0   94    65.66   2968    3285   58337  12579    100.0    1.264  ! Near Maximum !
-01.0   95    66.33   2997    3350   60452  12633    100.0    1.244  ! Near Maximum !
+00.0   96    67.00   3026    3415   62643  12687    100.0    1.224  ! Near Maximum !
+01.0   97    67.67   3055    3480   64916  12739    100.0    1.205  !DANGEROUS LOAD-DO NOT USE!
+02.0   98    68.34   3083    3546   67272  12791    100.0    1.186  !DANGEROUS LOAD-DO NOT USE!
+03.0   99    69.01   3112    3612   69717  12841    100.0    1.168  !DANGEROUS LOAD-DO NOT USE!
+04.0  100    69.68   3140    3679   72253  12890    100.0    1.149  !DANGEROUS LOAD-DO NOT USE!
+05.0  101    70.35   3169    3746   74886  12938    100.0    1.132  !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     96    67.00   3141    3679   77796  12209    100.0    1.124  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     96    67.00   2847    3024   48181  13294     99.5    1.362

 

[Charlie-NY]

Where the chart indicates "fill %" is that filled to the bottom of the bullet.

 

[SJB358]

Dang, 26 looks real good in the 7mm WSM.

Might put me back to work on it again.

 

[JD338]

Yeah Scotty,
RL26 has me thinking for my 280AI with the 168 gr ABLR.

JD338

 

[MAinAR]

Yeah Scotty,
RL26 has me thinking for my 280AI with the 168 gr ABLR.

JD338

Yeah me too, never really thought of that heavy in the 280AI with much speed, QL info on it too would help........ it sure looks good with 150LRAB.