...QL Request, RL-23/26, .325 WSM...

wildgene

Handloader
Jul 4, 2011
1,597
2
...can someone run RL-23/26 w/ the 220gr. Sierra SBT in .325 WSM??? Default case w/ CCI 250 would be fine, just want to compare the 'new' powders to RL-17...
 
Cartridge : .325 WSM
Bullet : .323, 220, Sierra SPBT 2420
Useable Case Capaci: 70.011 grain H2O = 4.546 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 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 89 56.40 2272 2521 30843 8579 97.2 1.636
-18.0 92 57.81 2329 2650 33059 8789 98.1 1.590
-16.0 94 59.22 2387 2783 35443 8979 98.8 1.546
-14.0 96 60.63 2444 2918 38019 9149 99.3 1.500
-12.0 98 62.04 2501 3056 40795 9296 99.7 1.451
-10.0 100 63.45 2558 3196 43794 9420 99.9 1.404
-08.0 103 64.86 2614 3337 47037 9520 100.0 1.359
-06.0 105 66.27 2669 3481 50548 9605 100.0 1.316
-04.0 107 67.68 2724 3626 54355 9687 100.0 1.274 ! Near Maximum !
-02.0 109 69.09 2779 3772 58486 9766 100.0 1.234 ! Near Maximum !
+00.0 112 70.50 2833 3921 62980 9841 100.0 1.196 ! Near Maximum !
+02.0 114 71.91 2887 4071 67876 9912 100.0 1.158 !DANGEROUS LOAD-DO NOT USE!
+04.0 116 73.32 2941 4224 73215 9978 100.0 1.122 !DANGEROUS LOAD-DO NOT USE!
+06.0 118 74.73 2994 4379 79008 10040 100.0 1.088 !DANGEROUS LOAD-DO NOT USE!
+08.0 121 76.14 3047 4536 85318 10098 100.0 1.054 !DANGEROUS LOAD-DO NOT USE!
+10.0 123 77.55 3101 4697 92210 10150 100.0 1.022 !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 70.50 2933 4202 78199 9447 100.0 1.106 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 112 70.50 2677 3502 49635 10322 99.3 1.316
 
...Thanks, Dr. Mike, how about RL-26, does it look any better???
 
Cartridge : .325 WSM
Bullet : .323, 220, Sierra SPBT 2420
Useable Case Capaci: 70.011 grain H2O = 4.546 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 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 85 58.88 2285 2550 29617 9347 94.5 1.655
-18.0 87 60.35 2349 2695 31827 9624 95.8 1.607
-16.0 89 61.82 2413 2844 34224 9880 96.9 1.560
-14.0 91 63.30 2477 2997 36823 10111 97.8 1.515
-12.0 93 64.77 2541 3154 39646 10317 98.6 1.463
-10.0 95 66.24 2605 3314 42717 10494 99.2 1.412
-08.0 98 67.71 2668 3478 46057 10641 99.7 1.363
-06.0 100 69.18 2732 3645 49709 10756 99.9 1.316
-04.0 102 70.66 2794 3815 53696 10839 100.0 1.271
-02.0 104 72.13 2857 3987 58064 10905 100.0 1.228 ! Near Maximum !
+00.0 106 73.60 2918 4161 62850 10966 100.0 1.185 ! Near Maximum !
+02.0 108 75.07 2980 4338 68125 11022 100.0 1.145 !DANGEROUS LOAD-DO NOT USE!
+04.0 110 76.54 3041 4517 73935 11072 100.0 1.106 !DANGEROUS LOAD-DO NOT USE!
+06.0 112 78.02 3102 4700 80363 11117 100.0 1.068 !DANGEROUS LOAD-DO NOT USE!
+08.0 115 79.49 3163 4886 87489 11155 100.0 1.032 !DANGEROUS LOAD-DO NOT USE!
+10.0 117 80.96 3223 5076 95397 11186 100.0 0.996 !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 106 73.60 3044 4525 80148 10440 100.0 1.085 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 106 73.60 2722 3618 48772 11402 98.0 1.319
 
...Thanks again, Dr. Mike, I could live w/ 105% case fill, & 100fps would give me about 10% more energy/ less drop @ 500yds. RL-26 might be worth some investigation...
 
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