While I never had a sig210, the best , out of the box was a new steel 941 Jericho, 4 1/4 in .
My custom 1911 in 45 would do better.
The HK P7 m13, and pcp could , if I really tried, but while the guns where great, I never shot them a lot , so never got real good with them, those have 106mm barrels, so about the same as my 4 in revolvers that do it for me.
I have shot hi end target guns that will put all in the 10 ring, but that is not what we are talking about.
I had a couple young ladies, first time shooting a gun , one shot my smith m19 4 in and shot a 90 on a slow fire target
Youngest granddaughter kept all the 9mm in the rings, Her first time with a pistol as well, a surplus 941, crap ammo.
But I have tried with the same guns to teach, and have had one that just could not hit any target , no matter what we tried.