today I zeroed my Bushmaster ORC and on the 5th round it double fired. I changed the trigger springs to yellow springs from Brownell's. I also polished the trigger parts but did not use a file or anything else. So I was surprised when it double fired. I continued to shoot with no further problems. Now what do I do. I have worked on the trigger of all my hunting rifles with no problem. I really don't want to spend the money for an adjustable trigger if I can avoid it. By the way shoots moa at 100 yds.

