QL Request

[Jman80]

35 Whelen
180gr Barnes Tsx
IMR4064
18” Barrel

Thanks in Advance!

 

[SJB358]

I’m not near my QL computer but does Hodgdon show any data for a 180 to get you started. I’d think from using 200’s and 4064 you can stuff that case and probably still not be dangerous.

 

[SJB358]

Here is what I see. Should get you started.

 

[Jman80]

This is what I’ve found…

 

[SJB358]

Different bullet. The original 180 TSX and TTSX looks a bit different than what you’re using. I think you’ll be fine.

 

[Jman80]

I’m not near my QL computer but does Hodgdon show any data for a 180 to get you started. I’d think from using 200’s and 4064 you can stuff that case and probably still not be dangerous.

Barnes COAL was 3.100 on the 200gr TSX and I was gonna start right here and probably be safe. This is going to be in a CVA Scout with a 18” barrel and Suppressed.

 

[jimbires]

I don't show a 180gr TSX . I have a 180TTSX . IMR4064 is a little slow for this combo . a max pressure load is 116% case fill , it is compressed . I used a 18"bbl , and the 3.100 COAL .

Cartridge : .35 Whelen
Bullet : .358, 180, Barnes 'TTSX' 30459
Useable Case Capaci: 55.525 grain H2O = 3.605 cm³
Cartridge O.A.L. L6: 3.100 inch = 78.74 mm
Barrel Length : 18.0 inch = 457.2 mm
Powder : IMR 4064

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 93 44.88 2125 1806 29032 6816 79.2 1.177
-18.0 95 46.00 2181 1902 31047 7070 80.6 1.143
-16.0 97 47.12 2238 2001 33213 7322 82.1 1.111
-14.0 100 48.25 2294 2104 35542 7570 83.5 1.079
-12.0 102 49.37 2352 2210 38048 7815 84.8 1.047
-10.0 104 50.49 2409 2320 40748 8056 86.1 1.014
-08.0 107 51.61 2467 2433 43663 8291 87.4 0.982
-06.0 109 52.73 2526 2550 46812 8520 88.6 0.952
-04.0 111 53.86 2585 2671 50217 8741 89.8 0.922 ! Near Maximum !
-02.0 114 54.98 2645 2795 53909 8954 90.9 0.893 ! Near Maximum !
+00.0 116 56.10 2704 2923 57915 9158 92.0 0.865 !DANGEROUS LOAD-DO NOT USE!
+02.0 118 57.22 2765 3055 62265 9352 93.0 0.838 !DANGEROUS LOAD-DO NOT USE!
+04.0 121 58.34 2825 3191 66972 9535 94.0 0.812 !DANGEROUS LOAD-DO NOT USE!
+06.0 123 59.47 2887 3330 72102 9706 94.9 0.787 !DANGEROUS LOAD-DO NOT USE!
+08.0 125 60.59 2948 3474 77708 9863 95.7 0.762 !DANGEROUS LOAD-DO NOT USE!
+10.0 128 61.71 3010 3621 83853 10006 96.5 0.739 !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 116 56.10 2857 3262 69408 9416 97.4 0.801 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 116 56.10 2517 2532 47191 8523 83.5 0.947

 

[Jman80]

I don't show a 180gr TSX . I have a 180TTSX . IMR4064 is a little slow for this combo . a max pressure load is 116% case fill , it is compressed . I used a 18"bbl , and the 3.100 COAL .

Cartridge : .35 Whelen
Bullet : .358, 180, Barnes 'TTSX' 30459
Useable Case Capaci: 55.525 grain H2O = 3.605 cm³
Cartridge O.A.L. L6: 3.100 inch = 78.74 mm
Barrel Length : 18.0 inch = 457.2 mm
Powder : IMR 4064

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 93 44.88 2125 1806 29032 6816 79.2 1.177
-18.0 95 46.00 2181 1902 31047 7070 80.6 1.143
-16.0 97 47.12 2238 2001 33213 7322 82.1 1.111
-14.0 100 48.25 2294 2104 35542 7570 83.5 1.079
-12.0 102 49.37 2352 2210 38048 7815 84.8 1.047
-10.0 104 50.49 2409 2320 40748 8056 86.1 1.014
-08.0 107 51.61 2467 2433 43663 8291 87.4 0.982
-06.0 109 52.73 2526 2550 46812 8520 88.6 0.952
-04.0 111 53.86 2585 2671 50217 8741 89.8 0.922 ! Near Maximum !
-02.0 114 54.98 2645 2795 53909 8954 90.9 0.893 ! Near Maximum !
+00.0 116 56.10 2704 2923 57915 9158 92.0 0.865 !DANGEROUS LOAD-DO NOT USE!
+02.0 118 57.22 2765 3055 62265 9352 93.0 0.838 !DANGEROUS LOAD-DO NOT USE!
+04.0 121 58.34 2825 3191 66972 9535 94.0 0.812 !DANGEROUS LOAD-DO NOT USE!
+06.0 123 59.47 2887 3330 72102 9706 94.9 0.787 !DANGEROUS LOAD-DO NOT USE!
+08.0 125 60.59 2948 3474 77708 9863 95.7 0.762 !DANGEROUS LOAD-DO NOT USE!
+10.0 128 61.71 3010 3621 83853 10006 96.5 0.739 !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 116 56.10 2857 3262 69408 9416 97.4 0.801 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 116 56.10 2517 2532 47191 8523 83.5 0.947

Is it a big difference going with a 3.040 COAL? I’m just curious.

 

[Jman80]

If I can run it longer in the OAL this would lower my pressures correct? 2500fps would be plenty in the woods of South Louisiana!

 

[jimbires]

Is it a big difference going with a 3.040 COAL? I’m just curious.

I ran the same info as above , only change is the COAL is now 3.040 . the powder charge is lowered 1.1 grains to reach max pressure with this shorter COAL .


Cartridge : .35 Whelen
Bullet : .358, 180, Barnes 'TTSX' 30459
Useable Case Capaci: 54.005 grain H2O = 3.506 cm³
Cartridge O.A.L. L6: 3.040 inch = 77.22 mm
Barrel Length : 18.0 inch = 457.2 mm
Powder : IMR 4064

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 94 44.00 2109 1778 28853 6616 78.6 1.182
-18.0 96 45.10 2164 1872 30859 6864 80.1 1.148
-16.0 98 46.20 2221 1971 33024 7109 81.5 1.115
-14.0 101 47.30 2277 2072 35350 7353 82.9 1.083
-12.0 103 48.40 2334 2178 37855 7592 84.3 1.051
-10.0 105 49.50 2392 2286 40557 7827 85.6 1.018
-08.0 108 50.60 2450 2399 43475 8057 86.9 0.986
-06.0 110 51.70 2508 2515 46630 8281 88.2 0.955
-04.0 112 52.80 2567 2634 50047 8498 89.4 0.925 ! Near Maximum !
-02.0 115 53.90 2627 2758 53754 8707 90.5 0.896 ! Near Maximum !
+00.0 117 55.00 2687 2885 57774 8908 91.6 0.868 !DANGEROUS LOAD-DO NOT USE!
+02.0 119 56.10 2747 3016 62172 9098 92.6 0.841 !DANGEROUS LOAD-DO NOT USE!
+04.0 122 57.20 2808 3151 66955 9277 93.6 0.814 !DANGEROUS LOAD-DO NOT USE!
+06.0 124 58.30 2869 3289 72155 9445 94.5 0.789 !DANGEROUS LOAD-DO NOT USE!
+08.0 126 59.40 2930 3432 77847 9600 95.4 0.764 !DANGEROUS LOAD-DO NOT USE!
+10.0 129 60.50 2993 3580 84097 9740 96.2 0.740 !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 117 55.00 2840 3223 69368 9175 97.2 0.803 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 117 55.00 2499 2496 47103 8275 83.0 0.950

 

[Jman80]

I appreciate the information man!

 

[jimbires]

If I can run it longer in the OAL this would lower my pressures correct? 2500fps would be plenty in the woods of South Louisiana!

yes , a longer COAL will lower the pressure . you can lower the powder charge to give the desired velocity too.

with the 3.040 COAL you would be loading around 51.7 grains . according to the chart I posted this should give about 2508 FPS

with the 3.100 COAL around 52.5 grains should get you around 2514 FPS

 

[jimbires]

the 2500 FPS info , I would call these the minimum starting load .these are about 4.0 grains under max .