Brummy Mark Posted January 1, 2015 Report Share Posted January 1, 2015 Happy New Year! I want to fine tune QL to match my real world data. Basically all that's left to tweak, that I'm aware of,are burn rates and weighting? or are there some other tweaks. I have an accurate but slow load used at various air temperatures and want to fine tune QL so I can see where it leads me on further load development. Here is the real world data 22.5" barrel 1 in 7 RH twist COAL 2.545 N140 24gr 7C/45f air temp 2577fps 16.7C/63f air temp 2608fps Balistic AE app drops using the above data were real close out to 800yds, Drops at 810yds were 27MOA and at 840yds 28.5/29MOA observed. Now the above data is a bit wide of the QL data so want to tweak any variables, if there are any?? Screen shot is for temp adjusted to 63F for the chronoed speed of 2608fps, QL has that as 2720fps and the associated pressures etc. Thanks in advance for your opinions and help, I know that I can restart load development again but as an exercise want to see if its possible to tune QL further. Link to comment Share on other sites More sharing options...
DaveT Posted January 1, 2015 Report Share Posted January 1, 2015 One of the major 'tweaks' is to get accurate H2O capacities for your brand of cartridge...makes a huge difference to projected pressures particularly in smaller calibres. Link to comment Share on other sites More sharing options...
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