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Rifles, Reloading, Optics, Equipment
Reloading
RL-26 165 Matrix 270 caliber
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<blockquote data-quote="dwm" data-source="post: 1179619" data-attributes="member: 1136"><p>Ok, I had to take a look and see how hard it is to create your own bullet in QuickLoad. Turns out it is very straight forward.</p><p></p><p>I created a new text file named matrix.bul based on data that was in the other files. I basically copied one of the other files and deleted what was not needed, then edited the parameters that corresponded to the 165 Matrix VLD.</p><p></p><p>Contents of new matrix.bul file (Use at your own risk ...):</p><p></p><p>; 7-MAR-16. </p><p>; For use with QuickLOAD/QuickTARGET only. Any other use without expressed written consent is prohibited.</p><p>; User is responsible for any application of this data. Data may be changed without any notice. ICAO BCs.</p><p>".277, 165, Matrix VLD ","165","1.430","","","","","",".277",".650",".650","","","","","","","","","","25"</p><p></p><p>Use at your own risk ...</p><p></p><p>These parameters are very obvious, 165 = bullet weight, 1.430 is the length of the bullet, .650 is the BC, the 25 is at the end of all the lines in the file so I didn't change it.</p><p></p><p>I put this file in the directory with all the other bullet files.</p><p></p><p>Now when I open QuickLoad there is an option to load this bullet file.</p><p></p><p>You also have to click on the "Tail/Base Shaped" option right under where you select the bullet.</p><p></p><p>A dialog box will pop up. </p><p></p><p>Select the "Boattail" option at the bottom of the box.</p><p></p><p>Enter the following:</p><p></p><p>Small Diameter of Taper: 0.238</p><p>Large Diameter of Taper: 0.277</p><p>Length of Taper: 0.180</p><p></p><p>Next I entered the data according to my load, 56.8 grains of RL-26, and hit Apply&Calc.</p><p></p><p>A 270WIN velocity of 2925fps and a pressure of 54.6Kpsi was predicted by QuickLoad which matches the measured velocity from the chrony yesterday!</p><p></p><p>For the 270WIN I am running "Cartridge Length: 3.450" and "Barrel Length: 28in", two other parameters that need to be entered.</p><p></p><p>There is no need to adjust the QuickLoad "Burning Rate Factor" as the predicted velocity very closely matches the measured velocity.</p><p></p><p>Now I can use this bullet file to develop starting loads for IMR 7977 and H1000.</p><p></p><p>For example, it takes 59.7 grains H1000 to reach 2927fps which has a predicted pressure of 59.0Kpsi. If you plan to use H1000, start lower and work up to that level.</p></blockquote><p></p>
[QUOTE="dwm, post: 1179619, member: 1136"] Ok, I had to take a look and see how hard it is to create your own bullet in QuickLoad. Turns out it is very straight forward. I created a new text file named matrix.bul based on data that was in the other files. I basically copied one of the other files and deleted what was not needed, then edited the parameters that corresponded to the 165 Matrix VLD. Contents of new matrix.bul file (Use at your own risk ...): ; 7-MAR-16. ; For use with QuickLOAD/QuickTARGET only. Any other use without expressed written consent is prohibited. ; User is responsible for any application of this data. Data may be changed without any notice. ICAO BCs. ".277, 165, Matrix VLD ","165","1.430","","","","","",".277",".650",".650","","","","","","","","","","25" Use at your own risk ... These parameters are very obvious, 165 = bullet weight, 1.430 is the length of the bullet, .650 is the BC, the 25 is at the end of all the lines in the file so I didn't change it. I put this file in the directory with all the other bullet files. Now when I open QuickLoad there is an option to load this bullet file. You also have to click on the "Tail/Base Shaped" option right under where you select the bullet. A dialog box will pop up. Select the "Boattail" option at the bottom of the box. Enter the following: Small Diameter of Taper: 0.238 Large Diameter of Taper: 0.277 Length of Taper: 0.180 Next I entered the data according to my load, 56.8 grains of RL-26, and hit Apply&Calc. A 270WIN velocity of 2925fps and a pressure of 54.6Kpsi was predicted by QuickLoad which matches the measured velocity from the chrony yesterday! For the 270WIN I am running "Cartridge Length: 3.450" and "Barrel Length: 28in", two other parameters that need to be entered. There is no need to adjust the QuickLoad "Burning Rate Factor" as the predicted velocity very closely matches the measured velocity. Now I can use this bullet file to develop starting loads for IMR 7977 and H1000. For example, it takes 59.7 grains H1000 to reach 2927fps which has a predicted pressure of 59.0Kpsi. If you plan to use H1000, start lower and work up to that level. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
RL-26 165 Matrix 270 caliber
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