Yep, that will fit. Looks like now the A&B barrels that were taken out of the market are coming back. This might be worth to pick up just for the prethreaded muzzle.
You can also get pre-fit barrels from Pac-Nor, Shilen, McGowan, Criterion, and others, for a step up in quality. They cost a little more but they are hand lapped, and are easy to install.
Change out is done. Used the scotch tape on rear on "go" gauge technique. Waiting on a base screw from badger then I will mount up my US Optics and see how she shoots.
Put 40 rounds through it today. Had like a 40 mph crosswind.
I did shoot some .5 inch groups (3 rounds only) but could not hold it consistantly. I figure it will shoot a little better with more rounds through it. Plan on getting out to 300 yrd dope tomarrow.
Put another 20 rounds through it and have a real good zero, the winds calmed down.
I shot 2 .75 inch groups (5 shot groups) Pretty happy with the barrel. I need to chrony the ammo, There is a noticable difference in recoil in this ammo vs my reloades. I had 175 gr bullets going around 2650 out of a 24" barrel. I wouldnt think taking 4" off the barrel would reduce the weight enough to up the recoil.