I put mine in an early Boyds thumbhole laminated stock. The fit was tight which required me to open up the barrel channel by wrapping sandpaper around a dowel rod and sanding the channel. I also had to open up the mag well a bit and remove some material which was fouling the safety preventing it from working smoothly. This took about a week of trial and error since I did not want to go too fast. In the end it fit perfect and I glass bedded the action in the stock for good measure. This all combined to convert the pencil barrel B-mag from a cheapo looking toy rifle into a really sharp looking rimfire varmit rifle. It shoots the same as before which is fairly good as long as I keep the bore clean and do not shoot too many rounds too quickly. The thin profile bbl does heat up after about 4-6 rds in quick succession.

Mine shoots groups about the same as my Savage HB 17hmr. Both are sub MOA as long as it is not windy out. I was uber pleased with it. Savage soon started offering a HB version of the bmag in a Boyds stock and I am pretty sure that Boyds has refined their stock dimensions to prevent the issues that I had on this early production model. I have had my Bmag since fall of 2013 and the stock since early 2014 if I recall. I don't shoot it much since I have lots of rifles but it is my favorite varmint gun for coyotes and ground hogs out to about 250y. It is great fun to shoot. I have it topped off with a 6-24x scope. I posted a 200y tgt. The blocks are 1" and a pic of the rifle in its current form.

Irish