Cartridge : .300 H.& H. Mag.
Bullet : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 76.295 grain H2O = 4.954 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Hodgdon H414
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 80 59.40 2777 3083 47672 10005 98.1 1.309
-09.0 81 60.06 2805 3144 48945 10102 98.3 1.296
-08.0 82 60.72 2832 3205 50255 10197 98.6 1.282
-07.0 83 61.38 2859 3267 51603 10288 98.8 1.269
-06.0 83 62.04 2886 3329 52991 10377 99.0 1.256
-05.0 84 62.70 2913 3391 54419 10462 99.2 1.242 ! Near Maximum !
-04.0 85 63.36 2940 3454 55889 10544 99.3 1.229 ! Near Maximum !
-03.0 86 64.02 2967 3518 57402 10623 99.5 1.217 ! Near Maximum !
-02.0 87 64.68 2993 3581 58959 10698 99.6 1.204 ! Near Maximum !
-01.0 88 65.34 3020 3646 60562 10769 99.7 1.192 ! Near Maximum !
+00.0 89 66.00 3047 3710 62213 10838 99.8 1.179 ! Near Maximum !
+01.0 90 66.66 3073 3775 63911 10902 99.9 1.167 !DANGEROUS LOAD-DO NOT USE!
+02.0 90 67.32 3100 3840 65661 10963 99.9 1.155 !DANGEROUS LOAD-DO NOT USE!
+03.0 91 67.98 3126 3906 67462 11019 100.0 1.143 !DANGEROUS LOAD-DO NOT USE!
+04.0 92 68.64 3152 3972 69317 11072 100.0 1.131 !DANGEROUS LOAD-DO NOT USE!
+05.0 93 69.30 3179 4038 71227 11122 100.0 1.119 !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 89 66.00 3157 3983 72437 10439 100.0 1.117 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 89 66.00 2889 3336 52208 10845 96.4 1.255
RichardSlinger, Do you have H414 or a surplus non cannister grade powder that came in cardboard boxes from Higginson's Powders???
It's the odd weight that makes me wonder??? If it is indeed from Higginson's, the box will be stamped H414SL10. It will be a bit slower than W760 or H414 which are kissing cousins.
If it is H414, the loading tables in the manuals for W760 are interchangeable and there are lots of recipes for you in the Lyman manuals.
Thanks very much, both of you this gives me someplace to start and work up from.
Here's another question:
For moose and elk only, would there be any real-world drawback to using 165gr bullets rather than 180gr?
Max distance that I'd shoot would be 400m.
If a 165gr bullet out of a 30-06 work fine why would a 180ge be so much better? It's not like they wear body armour?
I understand that a 180gr bullet will penetrate better than a 165gr bullet of similar construction but how much penetration would one need to kill a elk at 400m?
Thanks for this, really appreciate it.If it is a bit slower, it may work a bit better at the upper end, that would be about the only change. Ball powders tend to work best in near compressed or lightly compressed loads, usually with the heavier bullets in the cartridge application, so, you may not see anything earth shattering out of it, just work it up in smaller increments when you get towards the last 2-3gr on the max end. 165 vs 180 will give you a hair more speed, nearly the same punch as a 180, 180 is about ideal speed/punch combo min for the H&H, as it was intended to run 180-220gr bullets. It's more or less a moot difference.
Yeah it is from Higginson's, should I stay away from max loads with it being slower?
Yeah it is from Higginson's, should I stay away from max loads with it being slower?
I've used up over 25 pounds of that powder and because it's slower than canister grade, H414 and because I know how it relates, I usually start with a mid table load and work up from there.
It's an extremely consistent powder and not as temperature sensitive as H414. I really like this powder and have relegated it to a couple of cartridges in specific rifles.
It may not be the best choice available but there's certainly nothing wrong with it for the 300HH.




























