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Rifles, Reloading, Optics, Equipment
Reloading
ok , need an expert guess...
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<blockquote data-quote="Guest" data-source="post: 146986"><p><font class="small">Code:</font><hr /><pre> Cartridge : .300 Rem Ultra Mag</p><p>Bullet : .308, 200, Nosler AccuBond 54618</p><p>Cartridge O.A.L. L6: 3.598 inch or 91.39 mm</p><p>Barrel Length : 26.0 inch or 660.4 mm</p><p>Powder : Hodgdon H1000</p><p></p><p>Predicted data by increasing and decreasing the given charge,</p><p>incremented in steps of 2.0% of nominal charge.</p><p>CAUTION: Figures exceed maximum and minimum recommended loads !</p><p></p><p>Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time</p><p> % % Grains fps ft.lbs psi psi % ms</p><p></p><p>-20.0 82 74.40 2470 2708 34610 10630 96.7 1.711</p><p>-18.0 84 76.26 2531 2846 37140 10890 97.6 1.664</p><p>-16.0 86 78.12 2593 2986 39861 11124 98.4 1.608</p><p>-14.0 88 79.98 2654 3129 42788 11332 99.1 1.556</p><p>-12.0 90 81.84 2715 3274 45944 11511 99.5 1.506</p><p>-10.0 92 83.70 2775 3421 49344 11660 99.9 1.458</p><p>-08.0 95 85.56 2835 3569 53013 11778 100.0 1.411</p><p>-06.0 97 87.42 2894 3719 56977 11870 100.0 1.366 ! Near Maximum !</p><p>-04.0 99 89.28 2952 3870 61261 11956 100.0 1.323 ! Near Maximum !</p><p>-02.0 101 91.14 3009 4022 65876 12038 100.0 1.282 !DANGEROUS LOAD-DO NOT USE!</p><p>+00.0 103 93.00 3066 4175 70829 12116 100.0 1.242 !DANGEROUS LOAD-DO NOT USE!</p><p>+02.0 105 94.86 3122 4330 76172 12189 100.0 1.204 !DANGEROUS LOAD-DO NOT USE!</p><p>+04.0 107 96.72 3178 4486 81941 12257 100.0 1.167 !DANGEROUS LOAD-DO NOT USE!</p><p>+06.0 109 98.58 3234 4644 88181 12321 100.0 1.131 !DANGEROUS LOAD-DO NOT USE!</p><p>+08.0 111 100.44 3289 4804 94940 12378 100.0 1.097 !DANGEROUS LOAD-DO NOT USE!</p><p>+10.0 113 102.30 3344 4967 102277 12431 100.0 1.064 !DANGEROUS LOAD-DO NOT USE!</p><p></p><p>Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge</p><p>Data for burning rate increased by 10% relative to nominal value:</p><p>+Ba 103 93.00 3167 4456 85573 11691 100.0 1.153 !DANGEROUS LOAD-DO NOT USE!</p><p>Data for burning rate decreased by 10% relative to nominal value:</p><p>-Ba 103 93.00 2910 3761 56677 12631 99.4 1.362 ! Near Maximum ! </pre><hr /></p><p></p><p></p><p>You are over your max pressure. Max pressure is 64997. This could be why the SMK's didn't shoot as well...</p><p></p><p>Take it down to 89.3 grns.</p><p></p><p>start there...play with seating depth.</p></blockquote><p></p>
[QUOTE="Guest, post: 146986"] <font class="small">Code:</font><hr /><pre> Cartridge : .300 Rem Ultra Mag Bullet : .308, 200, Nosler AccuBond 54618 Cartridge O.A.L. L6: 3.598 inch or 91.39 mm Barrel Length : 26.0 inch or 660.4 mm Powder : Hodgdon H1000 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 82 74.40 2470 2708 34610 10630 96.7 1.711 -18.0 84 76.26 2531 2846 37140 10890 97.6 1.664 -16.0 86 78.12 2593 2986 39861 11124 98.4 1.608 -14.0 88 79.98 2654 3129 42788 11332 99.1 1.556 -12.0 90 81.84 2715 3274 45944 11511 99.5 1.506 -10.0 92 83.70 2775 3421 49344 11660 99.9 1.458 -08.0 95 85.56 2835 3569 53013 11778 100.0 1.411 -06.0 97 87.42 2894 3719 56977 11870 100.0 1.366 ! Near Maximum ! -04.0 99 89.28 2952 3870 61261 11956 100.0 1.323 ! Near Maximum ! -02.0 101 91.14 3009 4022 65876 12038 100.0 1.282 !DANGEROUS LOAD-DO NOT USE! +00.0 103 93.00 3066 4175 70829 12116 100.0 1.242 !DANGEROUS LOAD-DO NOT USE! +02.0 105 94.86 3122 4330 76172 12189 100.0 1.204 !DANGEROUS LOAD-DO NOT USE! +04.0 107 96.72 3178 4486 81941 12257 100.0 1.167 !DANGEROUS LOAD-DO NOT USE! +06.0 109 98.58 3234 4644 88181 12321 100.0 1.131 !DANGEROUS LOAD-DO NOT USE! +08.0 111 100.44 3289 4804 94940 12378 100.0 1.097 !DANGEROUS LOAD-DO NOT USE! +10.0 113 102.30 3344 4967 102277 12431 100.0 1.064 !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 103 93.00 3167 4456 85573 11691 100.0 1.153 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 103 93.00 2910 3761 56677 12631 99.4 1.362 ! Near Maximum ! </pre><hr /> You are over your max pressure. Max pressure is 64997. This could be why the SMK's didn't shoot as well... Take it down to 89.3 grns. start there...play with seating depth. [/QUOTE]
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