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You guys are great, I appreciate the help ! ! ! !
The reason for the question is that I've got a .223 (75 gr. Hornady Match , 1:7.7 twist, 2800 FPS) and a .308 (168 Berger VLD, 1:13 Twist, 2620 FPS) that I'm trying to go 1,000 yards with. As I plot out the BC, FPS, ect., I wanted to figure out when the load would go below super sonic.
It looks like I'm real good out to 800 yards, 900 is possible, 1,000 is a bit spooky...... : - )
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