During testing my 30BR in preparation for a match, when carefully watching the wind flags then reaching for something, in an instant my finger unintentionally barely touched the trigger causing a misfire. The range was hot and the round hit the target but somewhat off from the intended X. When the range is cold, all rifles are required to have their bolts out and no-one can touch any rifle on the line, all by range rules. Benchrest rifles typically do not have safeties. Is there some sort of simple device that I can put on my rifle that prevents such misfires that can be used during a match?