In-form quick Jackson Bird has helped bowl Tasmania to a JLT Sheffield Shield win over South Australia late on the final day in Hobart.

Rain and a stubborn Callum Ferguson century threatened to deny the Tigers at Bellerive Oval but Bird struck twice in the shadows of stumps.

Set a mammoth 403 for victory, the Redbacks were eventually bowled out for 213.

Players were forced from the field for almost two hours in Friday's third session with SA teetering at 7-192.

Once they returned, Bird (4-65) had Nick Winter (26) edging before trapping Ferguson plumb in front for 111.

Paceman Gabe Bell (3-44) claimed the final wicket to complete a 189-run win and give him seven scalps for the match.

Resuming at 1-16, South Australia lost regular wickets throughout the day including Test incumbent Travis Head for just 11 - his final knock before joining the Australian squad for the first Test against India.

Ferguson, though, was a steady hand and brought up his 18th first-class ton with a straight drive late in the day.

The Redbacks were rolled for just 136 in their first innings, in reply to Tasmania's 185.

The Tigers got further ahead on day three, posting 8-353 (dec) headlined by a patient 113 from Jordan Silk and runs to veteran George Bailey.

Bailey hit 63 after last week stepping down from the Shield captaincy to focus on fixing his ailing batting.

Former Test paceman Jackson Bird praised Tasmania's rookie quicks for helping deliver this important Sheffield Shield win over South Australia.

Bell, aged 23, has 20 Shield wickets already this season at 19.50.

"He's the perfect bowler to have at the other end," Bird said after the win that keeps the Tigers in touch with second place.

"Something's always happening when he comes on. It's great to have a young Tasmanian guy coming through and playing as well as he is."

Debutant paceman Alex Pyecroft took three first-innings wickets, hit a valuable 29 and went for less than a run-an-over in the second innings.

"I was the lucky one to get the wickets but the pressure we created in the two sessions before that, we got the rewards at the end of the day," Bird said.

The fourth-placed Tasmanian Tigers will now meet the fifth-placed Queensland Bulls in a re-match of last season's JLT Sheffield Shield Final at Hobart's Blundstone Arena from this Friday 7 December with play starting at 10:30am.

This Round 6 of the Sheffield Shield will be the last one before taking a break for the men's Big Bash Season BBL|08 which begins in earnest on Wednesday 19 December.

Tasmania XI: Alex Doolan, Jordan Silk, Ben McDermott, Jake Doran, George Bailey, Matthew Wade (c), Tim Paine, Alex Pyecroft, Jackson Bird, Gabe Bell, Riley Meredith.

South Australia XI: Jake Weatherald, Conor McInerney, Callum Ferguson, Travis Head (c), Jake Lehmann, Tom Cooper, Alex Carey, Joe Mennie, Nick Winter, Kane Richardson, Daniel Worrall.