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Help Quickload Request for .308


blaser308

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Tried running RS powder quickload Link but doesnt seem to work Could some one please run quickload for following fps ranges from 2.600fps to 2,750fps powder: RS-60, bullet: 200g Berger Hybrid, 30in bartlein 1 in 10 twist

Lapua palma brass, CCiBR Temp 10 deg c, Elevation 240 ft above sea Level Thanks for Help.

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What's the average capacity of your cases in grains of H2O and what overall length will your rounds be?

As you are supplying met data too, I'm guessing your require some external ballistic data too? I ask, as far as I can remember, Quickload has no functionality to account for changes in the propellant burn rate and hence pressure and ultimately muzzle velocity, due to temperature/pressure.

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I may well be wrong, but isn't RS60 the same powder as RL17/ Elcho17? Surely Quickload may have some data for these powders, or even the manufactuers (Alliant??) webpage?

 

best of luck

 

Finman

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As mentioned in a previous post, to get Reload Swiss powders within QuickLOAD, if they aren't there all ready, follow this procedure.

 

Get the QuickLOAD data file from here.

 

http://www.reload-sw..._load/index.php

 

After downloading it, you can place this in the powders folder (C:\Users\Public\Documents\QuickLOAD\data\powders) and select this when you want to use it. To do this, when within QuickLOAD, click on the 'File:\qloadfw' link above the powder image and select the 'Reload Swiss.pro' file. The other method you can use is to go to the same folder, make a copy of the 'qloadfw.pro' file and then edit the old file and insert the data from the 'Reload Swiss.pro' file into it. You'll need to open it in a suitable text editor (Notepad, Notepad++, etc.).

 

As to whether RS60 is the same as RL17/Elcho17, I'd have to double check when I get home. I remember two having the same bomb calorimeter data in QuickLOAD and hence produced the same internal ballistics, but I can't remember if all three do. The general consensus on the forum is they are one and the same or extremely close.

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Thanks for info Lads & BlueBoy69, H20 case capacity 56.75 grains, OAL from base of case to Ogive 2.352in

 

When i download that file it only seems to open with my pc winzip and i cant seem to add additional info to the file when it opens in winzip, could you crunch the numbers if you get time thanks.

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Hi, QuickLOAD requires cartridge overall length (base to bullet tip, COAL), its doesn't support cartridge base to ogive (CBTO). As I don't have any of those bullets I can't calculate it myself. Can you give me the average COAL?

 

Strange that the that you can't, not to worry, I'll calculate once I have the COAL.

 

Oh and within QuickLOAD, Elcho 17 and Reloader 17 have the same bomb calorimeter data, RS60 has a different set of data. So, according to QuickLOAD, only Elcho 17 and RL17 are the same.

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Requested data using RS60, 1:10" and 30" barrel, 56.75 gr H2O capacity, and Berger 200 gr Hybrid loaded to 3.085" COAL.

 

Cartridge : .308 Win. (SAAMI)
Bullet : .308, 200, Berger Hybrid #30427
Usable Case Capacity: 49.438 grain H2O = 3.210 cm³
Cartridge O.A.L. L6 : 3.085 inch = 78.36 mm
Barrel Length : 30.0 inch = 762.0 mm
Powder : ReloadSwiss RS 60

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 39.20 2239 2227 29347 5546 97.7 1.868
-18.0 84 40.18 2293 2336 31326 5671 98.4 1.818
-16.0 86 41.16 2347 2447 33442 5784 99.0 1.771
-14.0 88 42.14 2401 2560 35710 5882 99.5 1.724
-12.0 90 43.12 2454 2674 38141 5965 99.8 1.675
-10.0 92 44.10 2506 2789 40749 6033 100.0 1.626
-08.0 94 45.08 2558 2906 43547 6086 100.0 1.579
-06.0 96 46.06 2609 3023 46558 6134 100.0 1.533
-04.0 98 47.04 2660 3142 49797 6181 100.0 1.489
-02.0 100 48.02 2710 3261 53282 6226 100.0 1.447 ! Near Maximum !
+00.0 103 49.00 2759 3382 57053 6268 100.0 1.406 ! Near Maximum !
+02.0 105 49.98 2809 3503 61123 6309 100.0 1.367 ! Near Maximum !
+04.0 107 50.96 2858 3626 65527 6347 100.0 1.329 !DANGEROUS LOAD-DO NOT USE!
+06.0 109 51.94 2906 3751 70306 6382 100.0 1.293 !DANGEROUS LOAD-DO NOT USE!
+08.0 111 52.92 2955 3877 75496 6415 100.0 1.258 !DANGEROUS LOAD-DO NOT USE!
+10.0 113 53.90 3003 4004 81146 6445 100.0 1.224 !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 49.00 2853 3614 69233 5974 100.0 1.312 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 49.00 2611 3028 46425 6645 99.3 1.535

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