But it reduced the non-parole period from 14 to 13 years, citing the stress of awaiting trial and having his case resolved.
Smail then sought leave from the Supreme Court to appeal against the Court of Appeal judgment.
In its conclusion released today, the Supreme Court did not accept that Smail had not received a fair trial as a result of prejudicial publicity and dismissed his application,
He had originally pleaded guilty in 2006 to murdering Mr McCormick but his conviction was quashed by the Court of Appeal, which ordered a fresh trial.
Before it took place, Smail had twice applied unsuccessfully to the High Court for a change of venue from Christchurch.
The trial eventually took place in May and June last year. The jury rejected his defence that, by reason of provocation, he was guilty only of manslaughter and found him guilty of murder.
Smail's sole proposed ground of appeal in the Supreme Court application was that the overall effect of publicity concerning his original guilty plea, his various appeals and publicity on internet sites, coupled with links perceived by the public between his case and that of the earlier, unconnected murder trial in Christchurch of Clayton Weatherston, made his trial unfair.
Although the two murder accused had the same counsel, and both raised the defence of provocation, the jury would have recognised the cases were different, the Supreme Court ruled.
Weatherston's trial was 10 months earlier than Smail's and "in any event, the judge appropriately directed jurors to disregard such matters," said the judgment.