Post impressions if you take the plunge. That is a beauty. There are a couple high end collectors in the US that did some pretty rigorous accuracy testing of an extensive number of high end 9mms. The P210 6" Super Target came out on top, followed closely by a second generation P226 X5 Enhanced Classic.
It was indeed a through test done by two collectors of very high end pistols down south. Both have a very sweet and quite large collection of handguns that a majority of us would dream of.
The German P210 Super Target wasn't a part of the test and the one taking the crown was a newer gen Sig Sauer X-Five Classic mounted with an Aimpoint T-2. That's a bit cheating when compared to straight irons pistols though.
The two P210's tested were a Swiss P210-5 (extended slide & barrel with the heavy frame) and a newer (dash 9) German Legend Target with the 5" barrel.
To summarize the results of all pistols tested @ 25y:
Best 25 Yard Groups
Sig Sauer X-Five Classic with Aimpoint T-2 0.893
CZ 75 Tactical Sport 1.029
Sig Hämmerli P240 1.299
S&W 3566 1.381
Sig Arms P210-5 HF 1.622
S&W 5906 PPC9 6″ 1.628
Pardini GT45-II 1.796
Sig Sauer P210 Legend Target 1.829
Benelli MP3S 2.07
Glock 17L Gen 3 2.155 (Tom S. aka Yuns)
Glock 17L Gen 3 2.77 (Brian C. aka bac 1023)
Beretta 92 Combat 3.422
Graham, here's the actual article on pistol tests you're referring to:
https://www.thefirearmblog.com/blog/2016/10/12/exclusive-testing-worlds-accurate-pistols-part/
If you feel like owning the real deal of a Swiss P210-5 like the one tested, there's one NIB sitting on GB for a "mere" $24995 USD starting bid. It would add +1 to your pool of restricted up here JP. That's a unique Swiss P210, one of a kind up here.
https://www.gunbroker.com/item/798667419