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Rifles, Reloading, Optics, Equipment
Reloading
Reloader 26 in 6.5 creedmoor
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<blockquote data-quote="Bowfishn" data-source="post: 1443623" data-attributes="member: 56875"><p>Based off of info on H2O capacity you have given 51 gr. I have run a new chart for H4350.</p><p>Note that you could be running over pressure on the higher loads you have loaded.</p><p>Watch velocities with the charge weights if they run low you are most likely okay but if they run high stop. Remember 63K is the limit for the 6.5 CM so if you see 2800 fps you have reached the safe pressure limits. Also watch for any other pressure signs as well and stop if pressure signs are there, even if you don't reach 2800 fps.</p><p></p><p>Cartridge : 6.5 Creedmoor Hornady</p><p>Bullet : .264, 147, Hornady ELD-M 26333</p><p>Useable Case Capaci: 44.641 grain H2O = 2.898 cm³</p><p>Cartridge O.A.L. L6: 2.865 inch = 72.77 mm</p><p>Barrel Length : 28.0 inch = 711.2 mm</p><p>Powder : Hodgdon H4350</p><p></p><p>Predicted data by increasing and decreasing the given charge,</p><p>incremented in steps of 0.485% 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>-04.0 95 38.40 2600 2206 49296 7257 98.4 1.479</p><p>-03.5 96 38.60 2612 2227 50039 7286 98.5 1.469</p><p>-03.0 96 38.80 2624 2248 50793 7315 98.6 1.459</p><p>-02.5 97 39.00 2636 2269 51558 7343 98.7 1.450</p><p>-02.0 97 39.20 2649 2290 52335 7371 98.8 1.440</p><p>-04.4 98 39.40 2661 2311 53124 7398 98.9 1.431</p><p>-03.9 98 39.60 2673 2332 53925 7424 99.0 1.422 ! Near Maximum !</p><p>-03.4 99 39.80 2685 2353 54739 7450 99.1 1.412 ! Near Maximum !</p><p>-02.9 99 40.00 2697 2374 55564 7475 99.2 1.403 ! Near Maximum !</p><p>-02.4 100 40.20 2709 2395 56403 7500 99.3 1.394 ! Near Maximum !</p><p>-01.9 100 40.40 2721 2417 57254 7523 99.4 1.385 ! Near Maximum !</p><p>-01.5 101 40.60 2733 2438 58119 7547 99.4 1.376 ! Near Maximum !</p><p>-01.0 101 40.80 2745 2459 58997 7570 99.5 1.367 ! Near Maximum !</p><p>-00.5 102 41.00 2757 2481 59888 7592 99.6 1.359 ! Near Maximum !</p><p>+00.0 102 41.20 2769 2502 60794 7613 99.6 1.350 ! Near Maximum !</p><p>+00.5 103 41.40 2781 2524 61713 7634 99.7 1.341 ! Near Maximum !</p><p>+01.0 103 41.60 2793 2546 62648 7654 99.7 1.333 !DANGEROUS LOAD-DO NOT USE!</p><p>+01.5 104 41.80 2805 2567 63596 7673 99.8 1.324 !DANGEROUS LOAD-DO NOT USE!</p><p>+01.9 104 42.00 2817 2589 64560 7692 99.8 1.316 !DANGEROUS LOAD-DO NOT USE!</p><p>+02.4 105 42.20 2828 2611 65539 7710 99.9 1.307 !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 102 41.20 2866 2680 71455 7318 100.0 1.267 !DANGEROUS LOAD-DO NOT USE!</p><p>Data for burning rate decreased by 10% relative to nominal value:</p><p>-Ba 102 41.20 2630 2257 50320 7614 95.9 1.460</p></blockquote><p></p>
[QUOTE="Bowfishn, post: 1443623, member: 56875"] Based off of info on H2O capacity you have given 51 gr. I have run a new chart for H4350. Note that you could be running over pressure on the higher loads you have loaded. Watch velocities with the charge weights if they run low you are most likely okay but if they run high stop. Remember 63K is the limit for the 6.5 CM so if you see 2800 fps you have reached the safe pressure limits. Also watch for any other pressure signs as well and stop if pressure signs are there, even if you don't reach 2800 fps. Cartridge : 6.5 Creedmoor Hornady Bullet : .264, 147, Hornady ELD-M 26333 Useable Case Capaci: 44.641 grain H2O = 2.898 cm³ Cartridge O.A.L. L6: 2.865 inch = 72.77 mm Barrel Length : 28.0 inch = 711.2 mm Powder : Hodgdon H4350 Predicted data by increasing and decreasing the given charge, incremented in steps of 0.485% 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 -04.0 95 38.40 2600 2206 49296 7257 98.4 1.479 -03.5 96 38.60 2612 2227 50039 7286 98.5 1.469 -03.0 96 38.80 2624 2248 50793 7315 98.6 1.459 -02.5 97 39.00 2636 2269 51558 7343 98.7 1.450 -02.0 97 39.20 2649 2290 52335 7371 98.8 1.440 -04.4 98 39.40 2661 2311 53124 7398 98.9 1.431 -03.9 98 39.60 2673 2332 53925 7424 99.0 1.422 ! Near Maximum ! -03.4 99 39.80 2685 2353 54739 7450 99.1 1.412 ! Near Maximum ! -02.9 99 40.00 2697 2374 55564 7475 99.2 1.403 ! Near Maximum ! -02.4 100 40.20 2709 2395 56403 7500 99.3 1.394 ! Near Maximum ! -01.9 100 40.40 2721 2417 57254 7523 99.4 1.385 ! Near Maximum ! -01.5 101 40.60 2733 2438 58119 7547 99.4 1.376 ! Near Maximum ! -01.0 101 40.80 2745 2459 58997 7570 99.5 1.367 ! Near Maximum ! -00.5 102 41.00 2757 2481 59888 7592 99.6 1.359 ! Near Maximum ! +00.0 102 41.20 2769 2502 60794 7613 99.6 1.350 ! Near Maximum ! +00.5 103 41.40 2781 2524 61713 7634 99.7 1.341 ! Near Maximum ! +01.0 103 41.60 2793 2546 62648 7654 99.7 1.333 !DANGEROUS LOAD-DO NOT USE! +01.5 104 41.80 2805 2567 63596 7673 99.8 1.324 !DANGEROUS LOAD-DO NOT USE! +01.9 104 42.00 2817 2589 64560 7692 99.8 1.316 !DANGEROUS LOAD-DO NOT USE! +02.4 105 42.20 2828 2611 65539 7710 99.9 1.307 !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 102 41.20 2866 2680 71455 7318 100.0 1.267 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 102 41.20 2630 2257 50320 7614 95.9 1.460 [/QUOTE]
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Reloading
Reloader 26 in 6.5 creedmoor
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