Winter, the left-arm paceman considered a smokey for an Ashes berth by Jason Gillespie, bowled extensively to the Aussies in the Lord's nets as they prepared for a rematch of the 2015 World Cup final on Saturday at Lord’s.
"There were a couple of jokes about me coming into be Trent Boult," Winter, who’s currently playing for Brentwood Cricket Club in Essex, told cricket.com.au. "But I think he's got me well-and-truly covered.
"I was watching a little bit of him (in the World Cup) and he wasn't swinging the ball as much as I thought he would, so hopefully he doesn't catch our boys out.
"They played me pretty well so I reckon they're in pretty good hands."
While Boult only has nine wickets at 29 for the tournament, he was the joint leading wicket-taker (along with fellow left-armer Mitchell Starc) at the last World Cup and coach Justin Langer identified him as one of the Black Caps' main threats.
"Trent Boult, (he is a) left-armer which we talked about, incredibly skilful … They've got some good balance in their bowling attack but we'll be ready for that," said Langer.
At one stage, Winter induced a play-and-miss from Steve Smith – a feat few bowlers have managed during the tournament – but the South Australian conceded the former skipper had his measure.
"Steve Smith is pretty hard to bowl to, it's the first time I've bowled to him," he said. "The first ball I bowled what I thought was a pretty good ball and it got smacked for four. They had a good joke saying, ‘don't bowl on his stumps.’"
Unlike their summoning of Ashton Agar to specifically prepare for the left-arm spin of Shakib al-Hasan ahead of their game against Bangladesh, the timing of Winter's invitation to training ahead of their duel with Boult was coincidental, though Alex Carey said it was beneficial.
"It's nice just to get a feel for the left-arm and Nick's bowling really well, so it was nice to have him down," Carey told cricket.com.au.
Winter, who burst onto the domestic scene two summers ago with 34 wickets in his five Sheffield Shield games, has caused even greater havoc in the Essex Premier League this year.
In 12 games as the overseas pro at Brentwood, the paceman has snared an astonishing 62 scalps at 6.21 across all competitions, including three eight-wicket hauls and two seven-fors.
Another 7️⃣ wickets for Nick Winter makes it 4️⃣0️⃣ at 4.53 😲 from only six Premier Division games for English club @Brentwood_cc— West End Redbacks (@WestEndRedbacks) June 17, 2019
We had a chat with Wints ➡️ https://t.co/iT3fTxQzPH pic.twitter.com/3dJ82QU8Q3
In Essex Premier League matches alone, he has 44 wickets at 4.48 – nearly double the amount of victims as the next most prolific bowler in the competition.
It's not just amateur club cricketers who have had a hard time against Winter armed with a swinging ball.
He exploded onto the domestic scene two summers ago when he collected three five-wicket hauls in his two first-class games.
With 48 Shield wickets at 22 with the Dukes ball alone, he's been one of the most effective bowlers with it since it was introduced in 2016 in a bid to prepare domestic players for Test cricket in England ahead of the upcoming Ashes campaign.
"It's good to get over here and bowl with a swinging Dukes ball. It's a bit of a running joke with the South Australian boys that I just chase that around," Winter said.
"At the same time I've been keeping myself as fit as I can because the last two years in Shield cricket have been quite good for me and I want to keep building on that when I get back home to Australia."
Winter hopes to return to the Australian setup as a net bowler during the Ashes, while he's also set to train with county side Essex, where Test veteran Peter Siddle is the overseas player in four-day cricket and where Adam Zampa will return for a T20 stint later in the year.
An Ashes berth looks unlikely having missed selection for the Australia A squad that's currently touring England, but Winter believes being around the team while he's in the UK can only be of benefit.
And he hopes it could help jag him a highly-coveted ticket to the World Cup final – should the Aussies make it that far.
"The next level for me is Australia A hopefully," Winter said when asked of his ambitions beyond club and state cricket.
"Over the last two years playing 14 Shield games out of a possible 15 has been quite important for me going to that next level.
"If I'm not part of any of those (Australia and Australia A squads) which at the moment I'm not, I'm just going to try to be around as much as possible.
"Hopefully the boys make the World Cup final so and I can come back and have a bowl to them… Hopefully that earns me a cheeky ticket to the final."