Medium-pacer Winter claimed his first three wickets in first class cricket with the Vics losing 3-7 after a century stand on the second day.
At stumps the Bushrangers are 5-248, still 131 runs in arrears of South Australia's 379.
Marcus Harris hit 66 and Travis Dean a more circumspect 42 as the Victorian openers added 114 for the first wicket.
Test batsman Peter Handscomb was only able to survive seven balls before being dismissed for a duck from an in-swinging Winter delivery.
Make that ✅✅✅ !— West End Redbacks (@WestEndRedbacks) February 9, 2018
Winter’s swinging ball hits the edge of Handscomb’s bat and rattles the stumps, gone for a 🦆
Vics are 3/121 #SheffieldShield
SA tailenders Winter and Daniel Worrall earlier added 22 handy runs as the home side advanced from their overnight 9-357.
The opening day was highlighted by a century on debut from Harry Nielsen (105), son of former long-serving SA wicketkeeper Tim Nielsen.
Daniel Worrall bowled tidily, with seven maidens and an economy rate of 2.28 from his 18 overs, and will set his sights on the two not out batsmen in Cam White and Seb Gotch early tomorrow.