Hey Pop

[Bucky5]

Do you think I could trouble you to run one more Quickload ?
243 Win/85 Sierra HPBT/H4831SC/22" barrel

Buck

 

[FOTIS]

Do you think I could trouble you to run one more Quickload ?
243 Win/85 Sierra HPBT/H4831SC/22" barrel

Buck

Cartridge : .243 Win.
Bullet : .243, 85, Sierra HPBT 1530
Cartridge O.A.L. L6: 2.710 inch or 68.83 mm
Barrel Length : 22.0 inch or 558.8 mm
Powder : Hodgdon H4831 SC

Predicted data by increasing and decreasing the given charge,
incremented in steps of 3.0% 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

-30.0 66 30.80 1980 740 17217 6251 66.6 1.724
-27.0 69 32.12 2060 801 18882 6709 69.1 1.666
-24.0 72 33.44 2142 866 20715 7175 71.6 1.610
-21.0 75 34.76 2226 935 22728 7647 74.1 1.555
-18.0 77 36.08 2312 1009 24944 8123 76.5 1.502
-15.0 80 37.40 2399 1087 27381 8599 78.9 1.450
-12.0 83 38.72 2489 1169 30068 9071 81.2 1.400
-09.0 86 40.04 2579 1255 33023 9537 83.5 1.351
-06.0 89 41.36 2671 1346 36298 9992 85.7 1.302
-03.0 92 42.68 2763 1441 39916 10433 87.7 1.246
+00.0 95 44.00 2857 1541 43920 10856 89.7 1.192
+03.0 97 45.32 2951 1644 48363 11256 91.5 1.140
+06.0 100 46.64 3047 1752 53303 11631 93.2 1.090 ! Near Maximum !
+09.0 103 47.96 3142 1864 58811 11976 94.7 1.043 ! Near Maximum !
+12.0 106 49.28 3239 1980 64966 12286 96.0 0.998 !DANGEROUS LOAD-DO NOT USE!
+15.0 109 50.60 3335 2099 71869 12558 97.2 0.954 !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 95 44.00 3038 1742 52673 11396 96.2 1.098 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 95 44.00 2642 1318 36152 9863 80.1 1.306

 

[YoteSmoker]

If the H4831 isnt to your liking, give up to 42.5 IMR 4350 a try. Sure works well for me with the 85 bthp and 87 v-max. (both seated .o1o off the lands)