QL, R33 240 Weatherby please

frankm

Handloader
May 10, 2009
420
25
Been running R26 in my 240 WB with lots of case capacity remaining. Wondered what R33 might do and how much I could get to with 100% fill. Looks like slightly north of 60 grains.

Anyway, would someone be so kind to run me a QL on the following data? I m thinking this exercise might be worth testing out!

240 Weatherby
R33
24” barrel
105 AMax (Hor)
3.330” OAL

Would like to run QL up to 65K psi to see what it forecasts. My R26 load currently giving 3250 fps and wondering if any velocity may be ‘on table’ …!

Thx in advance for the help.
 

TackDriver284

Handloader
Feb 13, 2016
1,859
587
Code:
Cartridge          : .240 Weath. Mag.
Bullet             : .243, 105, Hornady A-MAX 24562
Useable Case Capaci: 59.958 grain H2O = 3.893 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-33 *C

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   98    58.50   2898    1958   42103  14565     90.1    1.368
-09.0   99    59.15   2940    2015   43796  14795     91.0    1.342
-08.0  100    59.80   2982    2073   45568  15019     91.8    1.317
-07.0  101    60.45   3024    2132   47423  15236     92.6    1.292
-06.0  102    61.10   3066    2192   49369  15446     93.3    1.267
-05.0  103    61.75   3109    2254   51409  15647     94.0    1.243
-04.0  104    62.40   3152    2316   53548  15840     94.7    1.219
-03.0  105    63.05   3195    2380   55793  16024     95.3    1.196  ! Near Maximum !
-02.0  106    63.70   3238    2445   58152  16198     96.0    1.173  ! Near Maximum !
-01.0  107    64.35   3281    2511   60627  16362     96.5    1.150  ! Near Maximum !
+00.0  108    65.00   3325    2577   63237  16516     97.0    1.128  !DANGEROUS LOAD-DO NOT USE!
+01.0  109    65.65   3368    2645   65980  16660     97.5    1.106  !DANGEROUS LOAD-DO NOT USE!
+02.0  111    66.30   3412    2714   68868  16791     98.0    1.085  !DANGEROUS LOAD-DO NOT USE!
+03.0  112    66.95   3456    2785   71912  16911     98.4    1.064  !DANGEROUS LOAD-DO NOT USE!
+04.0  113    67.60   3500    2856   75112  17018     98.8    1.043  !DANGEROUS LOAD-DO NOT USE!
+05.0  114    68.25   3544    2928   78470  17113     99.1    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    108    65.00   3542    2925   80271  16325    100.0    1.021  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    108    65.00   3035    2148   48882  15466     88.0    1.266
 

frankm

Handloader
May 10, 2009
420
25
Thx TD284 👍. Have to measure some more capacity; right now looks like it ll take a lot of compression to get to pressure. May not get there.
 

SJB358

Ballistician
Dec 24, 2006
31,398
757
Thx TD284 👍. Have to measure some more capacity; right now looks like it ll take a lot of compression to get to pressure. May not get there.
That'd be pretty serious if you could fit it in there. 570 might be another worth looking at as well if you had some.
 
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