Here are the rules about crosfireing
c. CROSSFIRES: Any competitor who is aware that he/she cross fired shall report it to the Range Officer immediately following the completion of that match, and shall fire the balance of his/her shots on his/her own target. If such a report is not made, and the competitor has not fired more than the required number of shots on the record target, and the cross fire can be identified and attributed to him/ her by means of a backing target, he/she shall be deemed to have cross red inadvertently and shall not be disqualified but in either event the shooter shall be penalized as follows: The cross fires shall be transferred to his/her target and shall be measured as if fired in that position on that target. To his/her measurement shall be added a penalty of 1 minute of angle for each shot cross fired. (1 inch
at 100 yards; 2 inches at 200 yards; 3 inches at 300 yards) (See: Target Drawing in back of Rulebook) Any competitor found to have cross fired, and whose target shows he/she to have fired more than the required number of shots (including cross fires) shall be deemed to have tried to conceal the fact of his/ her cross fire and shall be disqualified from that yardage. In Registered Matches, the total shots on the record target will constitute the competitor’s record group for measurement. No competitor shall be allowed to re-fire any match. Targets
with more than the required number of shots will not be disqualified but, except for identified cross fires, group measurement must be taken from the 2 widest shots on the target. Targets shall be hung on all frames so that an equal opportunity to cross fire is provided to all competitors. The competitor must fire his group on the correct relay and from the correct bench. Failure to do so will disqualify the competitor from that yardage.
nobody will be disqualified from the entire tournament even if they attempt to hide their crossfire and are discovered
The rule says to report the cross fire immediately after the completion of the match.. But in consideration to your fellow competitors it is common practice to yell out that somebody is cross firing on your target at the time that you first notice the cross fire. and then at the completion of the match to make sure that the range officer is aware of the cross fire.
Gene Bukys