A Lakesland man convicted of a firearm offence has had his charges and fine revoked on appeal.

Peter Conway was fined $1000 and had his firearm licence suspended in Picton Court in April after police were called to his property where the court heard they found an unsecured firearm.

In Picton Local Court, magistrate Mary Ryan warned country gun owners that carelessness carried a strong penalty.

On appeal in Campbelltown Court, Mr Conway had his charges and fine revoked.