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Joined: May 2009
Posts: 17,283 Likes: 4
Campfire Ranger
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OP
Campfire Ranger
Joined: May 2009
Posts: 17,283 Likes: 4 |
I am about to work up some loads with a 200 Accubond.
Anyone had any experience with this
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Joined: Nov 2010
Posts: 37,174 Likes: 5
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2010
Posts: 37,174 Likes: 5 |
Works well in the 26 Nosler, good speed and good accuracy. QL likes it. It's not as slow as 869 or 872, but its density and high energy seems to equal or better those two.
I see no reason why it won't be a performer in the 30-378, overbore ratio may be pretty close to the 26.
It won't flow thru a powder measure, stacks pretty bad, is a coarse stick powder. Just remove the drop tube, dump charge in a scale pan and fine tume. Slower than direct filling. The dumped load will be pretty close, is faster than it seems.
It's high energy, double base. I'm guessing it burns hot, may be hard on bores, not sure. Not enough time to determine all that.
From what I've seen so far, I like it. Powder Valley has it.
DF
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Joined: May 2009
Posts: 17,283 Likes: 4
Campfire Ranger
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OP
Campfire Ranger
Joined: May 2009
Posts: 17,283 Likes: 4 |
Yup I got 2 lbs need a starting point Thinking 106-107
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Joined: Nov 2010
Posts: 37,174 Likes: 5
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2010
Posts: 37,174 Likes: 5 |
Did you get that data from QL?
If so, proceed with caution. As you well know, they can sometimes get a tad aggressive.
DF
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Joined: May 2009
Posts: 17,283 Likes: 4
Campfire Ranger
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OP
Campfire Ranger
Joined: May 2009
Posts: 17,283 Likes: 4 |
Yup for sure Cartridge : .30-378 Weath. Mag.
Bullet : .308, 200, Nosler AccuBond 54618
Useable Case Capaci: 119.191 grain H2O = 7.739 cm³
Cartridge O.A.L. L6: 3.655 inch = 92.84 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Vihtavuori N570
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 72 83.20 2430 2622 28625 12816 87.9 1.873
-18.0 74 85.28 2495 2764 30617 13285 89.4 1.828
-16.0 75 87.36 2560 2910 32752 13742 90.9 1.785
-14.0 77 89.44 2625 3061 35012 14184 92.3 1.742
-12.0 79 91.52 2691 3216 37391 14608 93.6 1.694
-10.0 81 93.60 2757 3375 39915 15013 94.7 1.641
-08.0 83 95.68 2822 3538 42597 15397 95.8 1.590
-06.0 84 97.76 2888 3705 45449 15757 96.8 1.541
-04.0 86 99.84 2954 3875 48480 16091 97.6 1.494
-02.0 88 101.92 3019 4048 51702 16397 98.3 1.449
+00.0 90 104.00 3084 4224 55127 16673 98.9 1.405 ! Near Maximum !
+02.0 92 106.08 3149 4404 58770 16918 99.4 1.363 ! Near Maximum !
+04.0 93 108.16 3213 4585 62646 17130 99.7 1.322 ! Near Maximum !
+06.0 95 110.24 3277 4769 66771 17307 99.9 1.283 !DANGEROUS LOAD-DO NOT USE!
+08.0 97 112.32 3340 4955 71164 17448 100.0 1.245 !DANGEROUS LOAD-DO NOT USE!
+10.0 99 114.40 3403 5142 75845 17565 100.0 1.209 !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 90 104.00 3251 4692 67208 16221 100.0 1.283 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 90 104.00 2855 3619 43326 16068 92.4 1.567
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Joined: Nov 2010
Posts: 37,174 Likes: 5
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2010
Posts: 37,174 Likes: 5 |
It may be dangerous before they say it's dangerous...  If it was me, I'd start in the upper 50K or lower 60K psi range, see how it did, then move on up from there. Don't think I'd get into the 70K range. DF
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Joined: Nov 2010
Posts: 37,174 Likes: 5
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2010
Posts: 37,174 Likes: 5 |
Yup I got 2 lbs need a starting point Thinking 106-107 That sounds reasonable, maybe a good place to start, looking for accuracy nodes. DF
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Joined: May 2009
Posts: 17,283 Likes: 4
Campfire Ranger
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OP
Campfire Ranger
Joined: May 2009
Posts: 17,283 Likes: 4 |
As soon as the blasted Gale force Wyoming winds die off a little  HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
* TIMING...Strongest winds between 5 AM and 10 AM MST Friday.
* WINDS...West 35 to 45 MPH with gusts to 65 MPH.
* IMPACTS...Mainly to transportation. Dangerous travel
conditions for light weight and high profile vehicles,
especially on north to south oriented roads. This includes the
cities of Laramie and Cheyenne, and Interstate 25 between
Douglas and the Colorado state line.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.
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Joined: Nov 2010
Posts: 37,174 Likes: 5
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2010
Posts: 37,174 Likes: 5 |
Yykes...
Yeah, real good day to be in front of a nice fire, or in a warm shop.
It's nasty down here, too, but mild compared to that.
DF
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