Could a rubber cap or something on elastic like the elasticated scope covers not be designed in a hi-vis colour that would catch any stray pellets. Rules could state it is only removed when in position on the lane and replaced before you get up?? Made hi-vis would allow others know the muzzle is covered and allow the shooter to see it was in place so they dont forget to remove it.
Steyr 110 with Leup VX3
Ripley AR5s with MTC viper
Walther LG300 XT Protouch with EB Sniper.
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