finally got a chance to check the ballistics after cutting my AR barrel from 20" to 18". figured i'd lose velocity, and it was more than i thought. checked my dope out to 300 and as expected, it changed as well. kewl.
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Shortening AR Barrel Change in dope
#1
Posted 14 January 2008 - 10:09 AM
"We're Marines, We took Iwo Jima. Baghdad ain't shit." - Gen. Kelly, USMC
"We have two companies of Marines running rampant all over the northern half of this island, and three Army regiments pinned down in the southwestern corner, doing nothing. What the hell is going on? " - Gen. John W. Vessey Jr., USA, Chairman of the the Joint Chiefs of Staff; during the assault on Grenada, 1983
"A golf course is the willful and deliberate misuse of a perfectly good rifle range." - Jeff Cooper
"Character is doing what's right when nobody's looking." - J.C. Watts
"We have two companies of Marines running rampant all over the northern half of this island, and three Army regiments pinned down in the southwestern corner, doing nothing. What the hell is going on? " - Gen. John W. Vessey Jr., USA, Chairman of the the Joint Chiefs of Staff; during the assault on Grenada, 1983
"A golf course is the willful and deliberate misuse of a perfectly good rifle range." - Jeff Cooper
"Character is doing what's right when nobody's looking." - J.C. Watts
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