A man who snatched a screaming six-year-old girl from her front yard near Wagga Wagga, raped her and later dropped her near her home and said "you can walk from here" has had more than two years cut from his minimum sentence.

Adam Gilbert Jolly was last year sentenced to 22 years and nine months, with a non-parole period of 15 years and nine months for kidnapping and several child-sex offences.

Jolly appealed against the sentence, in part arguing that it was "manifestly excessive".

On Tuesday, the Court of Criminal Appeal handed down a new sentence of 18 years and nine months, with a non-parole period of 13 years and four months.

On the morning of February 14, 2010, Jolly, then aged 27, approached the girl as she sat on the steps in her front yard and asked her: "Is your mum home?"