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In 2018, Mike Wilson shot a record setting 5-shot group measuring 1.068 in (27.1 mm) at 1,000 yd (910 m), which corresponds to an angular size of 0.102 moa or 0.029 mrad. The record was set shooting the 6mmBR Ackley Improved cartridge in good weather conditions, and the group was even centered in the X-ring.
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onsider this — we believe this is the smallest 10-shot group ever shot at 1000 yards in any form of rifle competition, by anyone, anywhere, anytime. It is smaller than the existing Williamsport Light Gun and Heavy Gun 1K records. The IBS and NBRSA do not shoot 10 rounds for Light Gun, but this 2.6872″ group is smaller than the current IBS (3.044″) and NBRSA (4.322″) ten-shot HEAVY GUN records.
Jim Richards Montana Missoula Deep Creek Williamsport World Record
This amazing group was shot by Jim Richards at the Deep Creek Range outside Missoula, Montana during the 4th Light Gun Relay of a 1000-yard match. Jim was shooting the small 6mm Dasher cartridge with 105gr Berger bullets.
There may be newer world records but the 2018 1.068” 5 shot 1000yard group shot with a 6BRA (ackley) and the 2014 ten round 2.687” 1000yard group with a 6dasher (also based on 6BR) are still pretty respectable and are definitely long range capable.