Fullbore Target Rifle Shooting terminology meaning the bullet has hit the target on or within the line of the inner-most boundary, it has hit the V-Bull.
This will score you 5 points and 1 V-Bull.
When comparing scores of A-B and A-C, the A is the point score (maximum 50 for a normal stage), and the B/C denotes the number of V-Bulls scored. In this case the point score (A) is the same, so the score with the higher number of V-Bulls is greater.
(In the case of two matching scores A-B and A-B other methods such as count-back, tie-breakers, or shoot-outs may be employed to determine a winner. )
Compare Bullseye-Five.
Also V-Bull.
Other Scoring Terminology:
Target Rifle Shooting...