Fullauto_Shooter Posted January 24, 2008 Share Posted January 24, 2008 (edited) Trying to get ready for the TX Carbine Championship so I spent half a day at the range with my AR15. Did some long overdue chrono and rifle "doping" work. Thought others here might benefit from what I learned. Disclaimer - I'm not the most accurate rifle shot around so I'm sure many of you could achieve much better groups than the ones listed below. Load: .223 WIN 55gr WIN FMJ-BT 25.0gr AA2230 WSR Primers Mixed Brass OAL: 2.225 Rifle: JP AR15 16" JP Barrel Scope: Meopta K-Dot (1-4X) Weather: 40 degrees F Overcast Light Winds - 8 MPH Chrono Data (Used CED M2 Chrono): AVG of 6 rounds: 2932 FPS PF: 161.2 ES: 86 FPS Rifle "Dope" Data: 3 Yards - 2.5 Inches Low (Single Hole 3 Shot Group) 7 Yards - 2.2 Inches Low (Single Hole 3 Shot Group) 15 Yards - 2.0 Inches Low (.21 Inch 3 Shot Group) 25 Yards - 1.0 Inches Low (.34 Inch 3 Shot Group) 50 Yards - 0.0 (.47 Inch 3 Shot Group) 100 Yards - 2.0 Inches High (1.09 Inch 5 Shot Group) 200 Yards - 1.7 Inches High (2.3 Inch 5 Shot Group) - This one surprised me, thought it would be lower. 300 Yards - 9.0 Inches Low (5.1 Inch 5 Shot Group - Wind blew this group approx 3" off centerline. EDITED TO CORRECT OAL. Edited January 26, 2008 by Fullauto_Shooter Link to comment Share on other sites More sharing options...
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