Shu In Oceanside. Shoot my air guns with other air gunners at Rainbow Range twice weekly. Location is : San Diego Riverside County line. Rainbow exit off I-15. Shoot up to 115 yards. Bring your gun and tank. Air tanks filled at Temecula Scuba Shop or Oceanside Dive Shop. Air gunners are growing in number at the range as ammo gets more expensive and scarce. So don’t think you are not welcome.