Welcome!!!!
First safety, yes you do need a full barrel length breach flag, normal is to use a piece of strimmer cord. Just put a piece of tape on the breach end, just to make it clear.
And yes go prepared with air cylinders, not all have air.
Meetings run to ISSF rules, do not take your pistol out of the case until the command "UNBOX", then make sure it is clear, best on dry fire and with the full length flag. Do not go to your point until the command "ATHLETES TO THE LINE", Then you will have a SET UP PERIOD of 15 minutes, during which you can dry fire, but NOT fire a live shot OR discharge air. Then the SIGHTING PERIOD, 15 minutes, and you can fire as many sighting shots as you wish. (but don't wear your self out!), Then the command STOP, so stop, then the command START, and that is the match.
If you wish to leave the point, you may, but must first ask the Range Officers permission first.
At the end of the comp the command is STOP, and you must not fire at all after that, and must flag your gun.
Before the match, IF they do equipment control, not all do, then they will test your pistol trigger weight, must be 500 gms minimum, and must lift the weight, done in dry fire if your pistol has it. Best to check at home first, saves a panic re set if its light!! The size is checked by putting it in the ISSF box. Unless you've done drastic mods , it will be the correct size!
Not all meetings run strictly to the rules, just be prepared.
But above all smile, have fun, that's what its all about!!
Have Fun
Robin
Walther KK500 Alutec expert special - Barnard .223 "wilde" in a Walther KK500 Alutec stock, mmm...tasty!! - Keppeler 6 mmBR with Walther grip and wood! I may be a Walther-phile?