Yes - interesting read. I would add my Browning A3 with 26" bl. in .300 Win Mag to that list. As stock, no bedding, just shooting, with factory Winchester 180gr. Bonded and Remington 180gr. Coreloct factory, it clover leafed - almost every time. The odd time, 2 in one hole with a bit of paper between that hole and the double-hole. Not joking - it was extremely accurate. I didn't even measure the groups, clover leafs. Under 1/2", even on the groups that had one out of the hole.
Mind you, they were only 3-shot groups - quick heating was the reason.
Only took 2 shots to get onto the 1000 meter buffalo. The first was my fault, holding for the book's 1000yard MOA suggestion and not deciphering for 1000 meters. Added 1 1/2 MOA- pow---clang.
The Anschutz .17HMR was a welcome surprise. I thought only my cobbled together Martini HMR was that accurate.