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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
AR mods for accuracy
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<blockquote data-quote="Pro2A" data-source="post: 2536940" data-attributes="member: 17889"><p>First, you need to define your definition of "shooter".......0.25MOA or Minute of Man, out to what range. Itty bitty groups and rate of fire are trade offs. When rate firing, one is not implementing shooting techniques needed for maximum accuracy, and vicea versa. If you want bolt gun groups, run it as a bolt gun. If you need rate of fire, run it as a semi gun. You must always "pay the piper" as there are no free lunches. One can't truly "have their cake and eat it too." That said, however, with AR platform, one can fool themselves into "having their cake and eating it too" somewhat by setting the AR up as a dual function semi and bolt gun. You can maximize accuracy by most closely duplicating a bolt gun design. Set up the AR up as a dual function "bolt" and semi gun via a ON/OFF gas block. Turn off the gas action by turning off the gas block to eliminate action movement when maximum accuracy is desired. Turn ON when rate of fire is desired. A side charging upper and BCG facilitates straight pull action operation versus traditional AR charging handle. For true maximum accuracy, set up a dedicated straight pull bolt only upper eliminating the gas block (plugged/non-drilled gas hole), gas tube for true free float barrel. Minimize barrel harmonics via top quality manufacturer's heavy bull shorter barrel (18", max of 20"). Top shooters as Todd Hodnett prefer to give up maximum velocity of longer barrel for consistent minimized harmonics in shorter bull barrel. He states one can consistently dial ballistics for velocity loss, barrel harmonics...NOT. For dual function option, eliminate all possible harmonic contact between barrel and other components......gas tube at barrel nut and gas key. For maximum accuracy. follow all standard bolt gun accuracy techniques....chamber design, shoot the GOOD ammo ES/SD control, COAL, bullet jump, bullet weight/twist, et el. For rate of fire shoot bulk box ammo. Maximum, cost effective accuracy gains typically come from shooter ability gains.....position building, trigger technique, recoil management, wind calls (wind separates the shooters from the trigger yankers....ALWAYS) ......consistency and repeatability. Initially, spend money on ammo for practice before high end equipment. A great shooter can shoot basic gear very well, but a poor shooter will embarrass high dollar gear. Optics performance.......turret dialing precision and repeatability, and optical resolution, etc..... "one can't hit, what one can't see" issue. CONSISTENCY IS KING IN ACCURACY. RELIABILITY IS KING IN RATE OF FIRE. Just sharing a really, really old guy's thoughts and experience. Built in the Forties.....19s, not 18s......all parts still function surprisingly well, DOPE book getting full. The older I get, the faster I was. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Pro2A, post: 2536940, member: 17889"] First, you need to define your definition of "shooter".......0.25MOA or Minute of Man, out to what range. Itty bitty groups and rate of fire are trade offs. When rate firing, one is not implementing shooting techniques needed for maximum accuracy, and vicea versa. If you want bolt gun groups, run it as a bolt gun. If you need rate of fire, run it as a semi gun. You must always "pay the piper" as there are no free lunches. One can't truly "have their cake and eat it too." That said, however, with AR platform, one can fool themselves into "having their cake and eating it too" somewhat by setting the AR up as a dual function semi and bolt gun. You can maximize accuracy by most closely duplicating a bolt gun design. Set up the AR up as a dual function "bolt" and semi gun via a ON/OFF gas block. Turn off the gas action by turning off the gas block to eliminate action movement when maximum accuracy is desired. Turn ON when rate of fire is desired. A side charging upper and BCG facilitates straight pull action operation versus traditional AR charging handle. For true maximum accuracy, set up a dedicated straight pull bolt only upper eliminating the gas block (plugged/non-drilled gas hole), gas tube for true free float barrel. Minimize barrel harmonics via top quality manufacturer's heavy bull shorter barrel (18", max of 20"). Top shooters as Todd Hodnett prefer to give up maximum velocity of longer barrel for consistent minimized harmonics in shorter bull barrel. He states one can consistently dial ballistics for velocity loss, barrel harmonics...NOT. For dual function option, eliminate all possible harmonic contact between barrel and other components......gas tube at barrel nut and gas key. For maximum accuracy. follow all standard bolt gun accuracy techniques....chamber design, shoot the GOOD ammo ES/SD control, COAL, bullet jump, bullet weight/twist, et el. For rate of fire shoot bulk box ammo. Maximum, cost effective accuracy gains typically come from shooter ability gains.....position building, trigger technique, recoil management, wind calls (wind separates the shooters from the trigger yankers....ALWAYS) ......consistency and repeatability. Initially, spend money on ammo for practice before high end equipment. A great shooter can shoot basic gear very well, but a poor shooter will embarrass high dollar gear. Optics performance.......turret dialing precision and repeatability, and optical resolution, etc..... "one can't hit, what one can't see" issue. CONSISTENCY IS KING IN ACCURACY. RELIABILITY IS KING IN RATE OF FIRE. Just sharing a really, really old guy's thoughts and experience. Built in the Forties.....19s, not 18s......all parts still function surprisingly well, DOPE book getting full. The older I get, the faster I was. :) :) :) [/QUOTE]
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AR mods for accuracy
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