I have been doing some good work with the 178 ELD Match out of the 308 and have settled on 44g of Varget winchester brass. It shoots way better then me. I recently purchased TRASOL after reading about it and was looking over my notes and wanted to see how TRASOL matched up with my real world experience
About two months ago I was shooting at 600 and 1000 yds at steel plates and the drop data I had from the hornady 4dof was spot on. 10mils at 1000 and 4.1mils at 600. my inputs to hornady 4DOF calculator were for 2700fps (assumed) with the forecasted weather. it was about 80 degree and dry that day.
I put the same info info into today TRASOL and using the published BC of .275 (G7) and I end up with 9.7 mils. BUT my DA according to TRASOL is about 2200ft. I have no idea what my DA was two months ago.
just wondering what BC any of you may have found with the hornady 178ELD Match flying out of the muzzle around 2700fps
Also, for TRASOL, is the act of "truing" just a matter of tweaking BC and MV of the bullet to match real experience? how close is "good enough" for the BC? .1mil? .2 mil? I need a chronograph, i know
if it helps,
24" barrel, 1-10" twist
44g of Varget
Winchester brass
About two months ago I was shooting at 600 and 1000 yds at steel plates and the drop data I had from the hornady 4dof was spot on. 10mils at 1000 and 4.1mils at 600. my inputs to hornady 4DOF calculator were for 2700fps (assumed) with the forecasted weather. it was about 80 degree and dry that day.
I put the same info info into today TRASOL and using the published BC of .275 (G7) and I end up with 9.7 mils. BUT my DA according to TRASOL is about 2200ft. I have no idea what my DA was two months ago.
just wondering what BC any of you may have found with the hornady 178ELD Match flying out of the muzzle around 2700fps
Also, for TRASOL, is the act of "truing" just a matter of tweaking BC and MV of the bullet to match real experience? how close is "good enough" for the BC? .1mil? .2 mil? I need a chronograph, i know
if it helps,
24" barrel, 1-10" twist
44g of Varget
Winchester brass