Headline: Air rifle mark hiked by Wigger. Maj. Lones Wigger, yesterday challenged his world record equaling air rifle score fired Mon. and won another point to gice hem a new U.S.record-386-one higher than the world mark. Then he added a 375 for a two-day 761 in the 3 day tournament. Maj.John Foster of Phoenix fired a 380 to lead the field yesterday w/a 759 total that moved him into second place. Maj.Foster led the field w/a 574 in the Standard Rifle event and shaved the 6 point lead compiled by David Boyd to two-points, 1137 to 1135. Etc.....Practice firing begins today for the 300 meter Free Rifle event which will be fired Fri.,Sat., and Sun. Results of yesterday's shooting: Standard Rifle; David Boyd 567-570, tl.1137. Maj.Foster 561-574, tl.1135. Lanny Bassham 1125. Ladies Standard Rifle; Capt.Margaret Murdock, 565-559, tl.1124. Tricia Foster 549-556, tl.1105. Air Rifle; Maj.Lones Wigger,386-375, tl.761. Maj.Foster, 379-380,tl.759. David Boyd, 750.