First time poster on this site but saw this string and thought I would add some commentary. I have a complete review over on AccurateShooter.com for the BMag and .17 WSM, but I have hunted with it for yotes for two seasons. Where I hunt for them is in the 'burbs so you can only used rimfire or shotgun. Shotgun did not have enough reach and .22 mag would leave them off and running after shots beyond 50 yards. When the .17 WSM came out, I was sold on the ballistics for my purposes. I can say that it is devastating on coyotes out to my furthest shot of 120 yards. A well placed shot behind the shoulder or center chest for head on, eviscerates a rather large area of the vitals and drops them in their tracks. I use the 20 grain because the 25's do not shoot well out of my rifle. The extra 500 fps velocity more than makes up for the 5 grains less weight. I have sold my .22 mag rifle since I don't see a place for it any longer.
In terms of the rifle itself, it really is a poorly made rifle. When I first shot it it grouped at about 2-3 MOA with unexplainable flyers. At that point, I would have not even tried hunting with it. Then I started taking it apart and made modifications to the overly loose recoil lug and the stock. I shimmed the lug under the receiver and made that solid. Then I found that the barrel was not free floated adequately with such a flimsy stock. I sanded down the barrel channel (plastic ribs) with a 1/2 inch round dowel to provide a quarter inch clearance around the barrel (use chalk on the barrel to confirm), then filled the remaining voids between the ribs with a mixture of epoxy and lead shot to stiffen the stock and add weight. This took care of the flyers and brought my groups down to .75 MOA at 100 yards which is adequate for coyote hunting
purposes. First shot accuracy is dead on now which is what counts.
Apparently, now there is a replacement stock from Boyds which should be nice, but I am holding out for something better from Savage or perhaps CZ. Savage launched a bull barrel version, but the stock is the same. Really would like to see a totally new configuration of stock and barrel. Better, more consistent ammo will also be helpful. Velocities are rather inconsistent over my chrono. Hornady is coming out with something later this spring.