I have a 1970-production Mark V in .30-'06. Made in Germany. 26" #2 profile barrel.
I didn't like the original trigger, so I replaced it with a Canjar.
I tweaked the forearm bedding a bit; free-floated and then shimmed at the front end. About a five-pound pull to allow insertion of the shim.
Early days, I could see better. Ten-shot groups of 1-1/4 MOA were normal. Five-shot groups of some 3/4 to 7/8 MOA were common. (100-yard range)
In 1997 I finally decided to buy some of this copper-remover bore cleaner, and worked it over pretty good. I'd put close to 4,000 rounds through it, although about half were "plinker" loads.
I did a bunch of reloading in preparation for an antelope hunt. First crack out of the box, I got a three-shot, half-MOA group. And, one shot, one antelope.
I later built a 500-yard range. I haven't used it much, but I got two four-shot five-inch groups with Sierra 165-grain HPBT bullets. I shot a relatively quick ten-shot string of 180-grain Sierra SPBTs. I called two fliers during the string; the other eight were in a six-inch group.
And Ol' Pet ain't for sale, either.
, Art