Asking for Quickload help 7mm-08 & 120 gr TTSX

[pharmseller]

What does Quickload say about 7mm-08, Big Game powder WLRM, and a 22 7/16" barrel?

Thanks,



P

 

[Dwh7271]

Bullet?

 

[Dwh7271]

Cartridge : 7 mm-08 Rem.
Bullet : .284, 120, Nosler BalTip 28120
Useable Case Capaci: 49.384 grain H2O = 3.206 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 22.4 inch = 569.9 mm
Powder : Ramshot Big Game

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 80 38.79 2461 1614 30069 7722 89.0 1.361
-18.0 82 39.76 2523 1696 32108 7972 90.4 1.324
-16.0 84 40.73 2585 1781 34296 8214 91.6 1.288
-14.0 86 41.70 2647 1868 36634 8448 92.8 1.254
-12.0 88 42.67 2710 1956 39123 8671 93.9 1.216
-10.0 90 43.64 2772 2047 41822 8883 94.9 1.179
-08.0 92 44.61 2834 2140 44702 9084 95.8 1.144
-06.0 94 45.58 2896 2235 47792 9271 96.7 1.109
-04.0 96 46.55 2958 2332 51113 9444 97.4 1.076
-02.0 98 47.52 3020 2431 54685 9602 98.1 1.044 ! Near Maximum !
+00.0 100 48.49 3082 2531 58533 9744 98.7 1.014 ! Near Maximum !
+02.0 102 49.46 3144 2634 62680 9870 99.1 0.984 !DANGEROUS LOAD-DO NOT USE!
+04.0 104 50.43 3205 2737 67157 9978 99.5 0.955 !DANGEROUS LOAD-DO NOT USE!
+06.0 106 51.40 3266 2843 72000 10067 99.8 0.928 !DANGEROUS LOAD-DO NOT USE!
+08.0 108 52.37 3327 2949 77215 10137 99.9 0.901 !DANGEROUS LOAD-DO NOT USE!
+10.0 110 53.34 3387 3057 82843 10188 100.0 0.875 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge

Cartridge : 7 mm-08 Rem.
Bullet : .284, 140, Nosler BalTip 28140
Useable Case Capaci: 47.351 grain H2O = 3.074 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 22.4 inch = 569.9 mm
Powder : Ramshot Big Game

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 83 38.79 2455 1874 36511 8150 94.8 1.346
-18.0 86 39.76 2515 1966 39124 8364 95.8 1.304
-16.0 88 40.73 2575 2061 41933 8566 96.7 1.263
-14.0 90 41.70 2634 2157 44948 8754 97.5 1.223
-12.0 92 42.67 2693 2255 48192 8927 98.2 1.185
-10.0 94 43.64 2752 2355 51684 9084 98.7 1.149 ! Near Maximum !
-08.0 96 44.61 2811 2457 55446 9225 99.2 1.114 ! Near Maximum !
-06.0 98 45.58 2870 2560 59506 9348 99.6 1.080 !DANGEROUS LOAD-DO NOT USE!
-04.0 100 46.55 2928 2665 63870 9453 99.8 1.047 !DANGEROUS LOAD-DO NOT USE!
-02.0 102 47.52 2985 2771 68553 9539 100.0 1.016 !DANGEROUS LOAD-DO NOT USE!
+00.0 104 48.49 3043 2878 73607 9605 100.0 0.986 !DANGEROUS LOAD-DO NOT USE!

 

[pharmseller]

120 TTSX

 

[pharmseller]

Your 120 NBT info is interesting, as it lists Nosler's Max load of 52 grains as dangerous do not use.



P

 

[Dwh7271]

I think it had a max pressure of 600something.
I used a hair under that. I can raise it up some if you'd like.
Don't know what pressure they use either.
I'm hesitant on a public site to exceed QL pressure maxes if you understand?

 

[SJB358]

Different lot of powder is probably the difference there. That's quite a lot outta line from what I usually see.

 

[kraky]

Ramshot lists 49.1 giving 58k.
Tikkas often have freebore. Things like win brass which is roomier knock calculations off too.
Bottom line work towards a Max speed of around 3080 -3125 watching for pressure.
You may wind up using noslers Max load depending on powder lot and other variables.
Or, you may get there on the money w/ramshot and ql which are really close.

 

[Dwh7271]

QuickLoad shows a max pressure of 60191 on the 7-08. I went with that.

Heres the TTSX based off that:

Cartridge : 7 mm-08 Rem.
Bullet : .284, 120, Barnes 'TTSX'BT 30298
Useable Case Capaci: 47.971 grain H2O = 3.115 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 22.4 inch = 569.9 mm
Powder : Ramshot Big Game

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 82 38.79 2525 1699 33555 7741 90.6 1.295
-18.0 84 39.76 2587 1783 35779 7977 91.8 1.260
-16.0 86 40.73 2649 1869 38148 8204 92.9 1.226
-14.0 89 41.70 2711 1958 40719 8423 94.0 1.193
-12.0 91 42.67 2773 2049 43463 8630 95.0 1.160
-10.0 93 43.64 2835 2142 46410 8827 95.9 1.129
-08.0 95 44.61 2897 2237 49578 9010 96.7 1.098
-06.0 97 45.58 2959 2334 52990 9180 97.5 1.067 ! Near Maximum !
-04.0 99 46.55 3022 2433 56665 9335 98.1 1.036 ! Near Maximum !
-02.0 101 47.52 3084 2534 60629 9475 98.7 1.005 !DANGEROUS LOAD-DO NOT USE!
+00.0 103 48.49 3146 2636 64917 9598 99.1 0.976 !DANGEROUS LOAD-DO NOT USE!
+02.0 105 49.46 3207 2741 69545 9704 99.5 0.947 !DANGEROUS LOAD-DO NOT USE!
+04.0 107 50.43 3269 2847 74580 9792 99.8 0.919 !DANGEROUS LOAD-DO NOT USE!

 

[pharmseller]

Thanks for the help.


P

 

[jason miller]

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