howa1500 22-250You're gonna need to give a lot more information before any good answer can come from this.
For starters: What are you trying to rebarrel?
I was checking out Criterion Barrels . Criterion has per fit barrels for the howa 1500 but need a barrel nut, my gun doesn't have a nut.Me personally, pre fit. Barrel comes contoured, crowned, threaded, blued and sort chambered.....it's a lot of bang for the buck......