Information rechargement balle Hornady GMX 165gr en 30-06

[Goupile71]

Toujours pas de nouvelle de RS, vous êtes sur qu'il réponde sous 48H???

[Goupile71]

C'est bon, j'ai toutes mes infos, je vais pouvoir me mettre à l'oeuvre!!!!

[sdi]

@Goupile71 wrote:C'est bon, j'ai toutes mes infos, je vais pouvoir me mettre à l'oeuvre!!!!

Peut tu mettre ce qu'ils t'ont envoyer Merci.

[Goupile71]

.30-06 Spring - Hornady GMX 30470 165gr - RS60



WARNING: Since we have no control over equipment or data which may be used with this program, no responsibility is implied or assumed for



results obtained through its use. Input data and results may be incorrect or wrong. Therefore the use of this data for loading ammunition can



cause serious injury to personnell and material. The computer-results had to be checked against data available in current loading manuals.



LOT-TO-LOT VARIATIONS OF POWDERS, PRIMER SUBSTITUTION AND COMPONENT CHANGE OFTEN RAISE PRESSURES



TO UNSAFE LEVELS. THE USER MUST ASSUME THE ENTIRE RISK OF USING THIS DATA FOR LOADING PURPOSES.



QuickLOAD© V.3.8.03 #21412, © Copyright 1987-2013 - H.Broemel, Babenhausen, Germany



User Data: Date:10-Mrz-2016 Time:11:10:42 File: *.dat



Comment 560mm barrel - 84.84mm COL - 49.0gr start load - 781m/s - 2844bar



Cartridge / Caliber .30-06 Spring. (CIP) Bullet .308, 165, Hornady GMX 30470



Maximum Average Pressure, allowed 4050 bar 58740 psi. (Piezo CIP) with boattail



Groove Caliber 7.82 mm 0.308 in. Bullet Weight 10.69 gm 165.0 gr.



Case Capacity, overflow 4.428 cm3 68.2 gr. H2O Bullet Length 34.8 mm 1.370 in.



Case Length 63.35 mm 2.494 in. Bullet Seating Depth 13.31 mm 0.524 in.



Cartridge O.A. Length 84.84 mm 3.340 in. Barrel/Tube Length 560.0 mm 22.0472 in.



Shot Start / Init Pressure 600.0 bar 8702 psi. Cross Section Area of Bore 0.4752 cm2 0.07366 in.2



Propellant type ReloadSwiss RS 60



Charge Weight 3.175 gm 49.0 gr. Load Density 0.828 gm/cm3 209.4 gr./in.3



Heat of Explosion, Potential 3990 J/gm 258.5 J/gr. Energy Density of Charge 3302 J/cm3 54110 J/in.3



Propellant Solid Density 1.61 gm/cm3 407.15 gr./in.3 Used Ratio of Specific Heats cp/cv 1.2291



Burning Rate Factor Ba 0.468 1/s Weighting Factor 0.55



Burning Function Limit Z1 0.695 Prog.-/ Degressivity Factor a0 0.669



Factor b 2.192 Bulk Density 0.965 gm/cm3 244.0 gr./in.3



Bullet Shank Seating Depth 8.23 mm 0.324 in. Capacity Displaced by Seated Bullet 0.592 cm3 0.0361 in.3



Useable Case Capacity 3.836 cm3 0.2341 in.3 Bullet Travel at Muzzle Exit 509.96 mm 20.08 in.



Loading Ratio(''Density'') / Filling 85.8 % Charge Fraction Burnt at Shot Start 3.85 %



Maximum Chamber Pressure 2844 bar 41256 psi. Bullet Travel at Pmax 38.9 mm 1.53 in.



Bullet Velocity 781.3 m/s 2563 fps. Pressure at Muzzle 653 bar 9477 psi.



Bullet Energy 3264 Joule 2407 ft.lbs. Bullet Barrel Time 1.185 ms



Propellant Burnt 98.3 % Ballistic Efficiency 25.8 %



Check Loading Manuals for Safe Minimum Charge Weight to Avoid Hazardous Ignition Conditions like Secondary Explosion Effects !



Real maximum (peak) of pressure is reached while bullet moves within barrel.



End of combustion occurs after the bullet's base passes muzzle.



Table of incremented charges ranging from +10.0% to -20.0% of above specified charge



D A N G E R ! : Table data may exceed maximum average pressures ! Pressures exceeding SAAMI or CIP specs are printed underlined!



Diff. Charge Weight Muzzle Vel. Muzzle Energy Max. Pressure Muzzle Pressure Prop.Burnt B_Time L.R./Filling



% Gramm Grains m/s fps Joule ft.lbs bar psi bar psi % ms %



-20.0 2.54 39.2 642 2106 2203 1625 1788 25933 503 7300 89.5 1.420 69



-18.0 2.60 40.2 655 2150 2296 1693 1869 27114 520 7545 90.6 1.396 70



-16.0 2.67 41.2 669 2194 2391 1764 1956 28364 537 7786 91.7 1.371 72



-14.0 2.73 42.1 682 2239 2490 1837 2047 29682 553 8024 92.7 1.347 74



-12.0 2.79 43.1 696 2284 2592 1912 2142 31074 569 8256 93.7 1.323 75



-10.0 2.86 44.1 710 2330 2697 1989 2244 32544 585 8482 94.6 1.299 77



-8.0 2.92 45.1 724 2376 2805 2069 2351 34096 600 8700 95.5 1.276 79



-6.0 2.98 46.1 738 2423 2915 2150 2464 35740 614 8910 96.3 1.252 81



-4.0 3.05 47.0 753 2469 3029 2234 2584 37476 628 9109 97.1 1.230 82



-2.0 3.11 48.0 767 2516 3145 2320 2711 39313 641 9299 97.7 1.207 84



Nominal 3.18 49.0 781 2563 3264 2407 2844 41256 653 9477 98.3 1.185 86



+2.0 3.24 50.0 796 2610 3385 2496 2986 43313 665 9642 98.8 1.163 87



+4.0 3.30 51.0 810 2657 3508 2587 3137 45491 675 9793 99.2 1.141 89



+6.0 3.37 51.9 824 2705 3634 2680 3296 47802 685 9930 99.6 1.120 91



+8.0 3.43 52.9 839 2752 3761 2774 3465 50252 693 10051 99.8 1.099 93



+10.0 3.49 53.9 853 2799 3890 2869 3644 52851 700 10157 99.9 1.078 94



Nominal 3.18 49.0 795 2609 3380 2493 2986 43308 653 9477 99.4 1.164 86



Nominal 3.18 49.0 766 2514 3140 2316 2708 39276 649 9409 96.7 1.207 86



Results caused by ±3% powder lot-to-lot burning rate variation using nominal charge



Data for burning rate increased by 3% relative to nominal value :



Data for burning rate decreased by 3% relative to nominal value :

[Goupile71]

Si vous ne comprenez pas, envoyer moi votre mail en mp et je vous transférerais le fichier!

[Goupile71]

Par contre, une GMX superformance est annoncé à 896m/s et 4300 joules avec un canon de 66cm.



La avec la charge préconisée (avec la poudre RS60), 781m/s et 3264 joules. Mais sa, c'est avec un canon de 56cm.



Pierre71 m'a déjà aiguillé sur la perte occasionné en m/s par cm en moins sur un canon, 12m/s pour 1cm de moins. Donc, si mon canon est plus court de 10cm, sa occasionne 120m/s en moins en sortie de canon (sur un 56cm).



DOnc, si on ajoute les 120m/s au 781m/s donné par RS, je retombe sur mes 900m/s théorique.



Est ce que quelqu'un peu me confirmer quelque chose la dessus???



Merci d'avance.

[sdi]

Commence par la charge nominale que RS te donne et ensuite tu grimpe progressivement. Tu a un chrono

[Goupile71]

Non

[sdi]

Bon ben vas y progressivement mais tu peux déjà partir de la charge nominale sans risque.