A Melbourne man who murdered his girlfriend by "savagely" beating her has been denied a bid to reduce his 26-year jail sentence.
Brendan Neil, now 31, attacked 33-year-old mother Simone Quinlan in August 2015 at Melton, angry she'd previously "snitched" on him to police after he'd attacked her with a baseball bat.
While in a rage, Neil brutally beat Ms Quinlan and wrapped her head in tape, telling her she looked "beautiful like that", before tearing it off.
After a brutal and prolonged attack, Neil's friend Wayne Marmo loaded Ms Quinlan into the back of his ute, shot her in the head, then dumped her in a mineshaft near Bendigo, before setting the body on fire.
It was not known at which point she died.
The following day, Neil hired a floor sander to remove the bloodstains from his house.
In December 2017, Neil was jailed for 26 years, with a non-parole period of 22 years, after pleading guilty to murder.
At the same time, Marmo was jailed 24 years, with a minimum of 20 years, after a jury convicted him of murder.
On Monday, the Court of Appeal refused Neil's appeal bid, disagreeing the trial judge's non-parole period was "manifestly excessive".
The court also disagreed the trial judge made a parity error when sentencing the two men, given Neil had pleaded guilty - although at a late stage - and also made an offer to give evidence against Marmo.
The appeal judges said sentencing Neil and Marmo might have been more difficult for a judge given the killers' different factual bases.
"That said however, we see no error in Her Honour's analysis or in the outcomes that she ultimately imposed," the judges said.