QL, RL17, and TTSX help, please

[sithlord6512]

Hi there,

I have only enough RL17 to run one OCW for my .300 WSM. Could somebody please run a Quickoad for
a) 168 g TTSX, and
b) 180 g TTSX (Alliant's website data is way too hot for this bullet)

Also, for anybody with experience trying these two weights for TTSX/TSX and with this powder, which one was more accurate for you (i.e., which one would you suggest). I am leaning towards 168 as this seems to be the weight that many seem find better RL17.

Thanks

BTW, Intended game is moose.

 

[DrMike]

Try these numbers.

Cartridge : .300 WSM (CIP)
Bullet : .308, 168, Barnes 'TTSX'BT 30878
Useable Case Capaci: 69.495 grain H2O = 4.512 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-17

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 75 50.40 2523 2374 34168 8621 96.5 1.435
-18.0 77 51.66 2580 2484 36335 8841 97.3 1.401
-16.0 79 52.92 2637 2595 38636 9047 98.0 1.368
-14.0 81 54.18 2694 2708 41081 9239 98.6 1.336
-12.0 83 55.44 2751 2823 43676 9416 99.1 1.305
-10.0 84 56.70 2807 2939 46446 9577 99.5 1.269
-08.0 86 57.96 2863 3057 49387 9721 99.8 1.234
-06.0 88 59.22 2918 3177 52518 9847 99.9 1.200
-04.0 90 60.48 2973 3297 55852 9954 100.0 1.167 ! Near Maximum !
-02.0 92 61.74 3027 3418 59412 10050 100.0 1.135 ! Near Maximum !
+00.0 94 63.00 3081 3541 63205 10142 100.0 1.105 ! Near Maximum !
+02.0 96 64.26 3134 3664 67256 10232 100.0 1.075 !DANGEROUS LOAD-DO NOT USE!
+04.0 98 65.52 3187 3788 71584 10318 100.0 1.047 !DANGEROUS LOAD-DO NOT USE!
+06.0 99 66.78 3239 3914 76216 10402 100.0 1.019 !DANGEROUS LOAD-DO NOT USE!
+08.0 101 68.04 3291 4041 81176 10482 100.0 0.993 !DANGEROUS LOAD-DO NOT USE!
+10.0 103 69.30 3343 4169 86493 10559 100.0 0.967 !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 94 63.00 3180 3772 75116 9786 100.0 1.034 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 94 63.00 2931 3204 52314 10427 98.5 1.198


Cartridge : .300 WSM (CIP)
Bullet : .308, 180, Barnes 'TTSX'BT 30879
Useable Case Capaci: 68.013 grain H2O = 4.416 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-17

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 74 48.80 2442 2383 34310 8451 97.3 1.479
-18.0 76 50.02 2497 2491 36465 8657 98.0 1.444
-16.0 78 51.24 2551 2601 38754 8849 98.6 1.410
-14.0 80 52.46 2605 2712 41183 9027 99.1 1.377
-12.0 82 53.68 2659 2825 43762 9189 99.5 1.345
-10.0 83 54.90 2712 2940 46503 9336 99.7 1.309
-08.0 85 56.12 2765 3056 49416 9466 99.9 1.273
-06.0 87 57.34 2817 3172 52514 9580 100.0 1.239
-04.0 89 58.56 2869 3290 55809 9680 100.0 1.205 ! Near Maximum !
-02.0 91 59.78 2920 3409 59317 9778 100.0 1.173 ! Near Maximum !
+00.0 93 61.00 2971 3528 63058 9872 100.0 1.142 ! Near Maximum !
+02.0 95 62.22 3022 3649 67043 9965 100.0 1.112 !DANGEROUS LOAD-DO NOT USE!
+04.0 96 63.44 3071 3771 71297 10054 100.0 1.083 !DANGEROUS LOAD-DO NOT USE!
+06.0 98 64.66 3121 3893 75843 10140 100.0 1.055 !DANGEROUS LOAD-DO NOT USE!
+08.0 100 65.88 3170 4017 80701 10224 100.0 1.028 !DANGEROUS LOAD-DO NOT USE!
+10.0 102 67.10 3219 4143 85903 10304 100.0 1.002 !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 93 61.00 3062 3748 74857 9535 100.0 1.070 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 93 61.00 2833 3207 52192 10206 98.9 1.237

 

[barthowes]

I can say that in my 30-06 168TTSX your QL data for the 300 is spot on(56.70gr @ 2807) I get 56.5gr @ 2800. I know my 30-06 love all 168gr. I personall found this bullet weight to work great in many different 30 cal rifles. That load is what I killed my moose with in Vermont this year.

 

[BalisticsNut]

Hi there,

I have only enough RL17 to run one OCW for my .300 WSM. Could somebody please run a Quickoad for
a) 168 g TTSX, and
b) 180 g TTSX (Alliant's website data is way too hot for this bullet)

Also, for anybody with experience trying these two weights for TTSX/TSX and with this powder, which one was more accurate for you (i.e., which one would you suggest). I am leaning towards 168 as this seems to be the weight that many seem find better RL17.

Thanks

BTW, Intended game is moose.

Not entirely sure about the BC between the Nosler ETip and TTSX but I ran a ladder test this morning with 168gr ETip and RL-17. Very promising groupings at 200 yards with 64.0 and 64.5 gr RL17. (sub 1" group)

With the Sierra GK 180gr, with RL17 and 66.9 gr I was shooting sub one inch groups at 200 yards.

These should be good starting points for you 300WSM. I use a Tikka3 .300 WSM with these loads. let me know how it goes.