I e-mailed a friend who is a retired MSP Trooper and worked in their firearms training unit. He says they issued:
S&W Model 10's with Heavy Barrels and Model 64's with Heavy barrel.
Some Trooper's who qualified as Distinguished Expert were issued Model 67's.
Yesterday I picked up an old duty weapon from a retired MSP Trooper, it was the handgun that he was issued when he graduated from the Academy back in 1978, the one that he carried in his crossdraw holster (with flap) from '78 to 1989. He said that the type Holster they used did a pretty good job of protecting their Revolvers from the elements.
It's a Heavy Barrel, 4", Model 64, actually it's stamped 64-1. He told me that his Class (late '77) was lucky since they were the first, as far as he knew, to get new handguns in many years. Prior to that he said they re-issued older Model 10's and after a few "re-issue's" some of them looked pretty rough. The Model 64 I got had Pachmayr Presentation Grips on it, which looked to have been on the gun for many years and confirmed what I had heard before, the newer "Pach's" are nothing like the older version, even if it is the same model Grip.
During our conversation he mentioned that the only other Revolvers he was issued was the two-toned snubby and a 9mm Smith & Wesson (Revolver.) He added that the firing pin channel on his two tone Airweight "elongated" after years of use and he ended up with fail to fire's because of this.
My neighbor is also a retired MSP Trooper that served during the same time as the Trooper I met yesterday. One these days I'll have to stop in and ask what type of weapons he was issued. I know, as a Sgt., he was on the Fugitive Team for quite a while and always has a MSP "Plain Jane", black, Chevy Suburban with heavily tinted windows parked in his driveway, ready to roll on a moments notice. Because of this type of duty he may have been issued, or at least authorized to carry, something a little different than when he was on road patrol..........