Apparently the stars are aligned right because in the past week I've located a Rem40X bolt and also a 40XB barreled receiver. I have a trainer already but have always wanted one with the same barrel contour as my .308 (Schneider M40 overrun barrel). So now I need to figure out which barrel to go with. I've read several recommendations on the Lilja tight bore barrels but thought I'd check around and see what other options might be worth considering. I don't know much about rimfire so recommendations/explanations on what twist to go with would be great. It will be finished at 22" and I shoot Wolf Match Target ammo out of my current trainer, hoping to stick with the same ammo.
TIA
TIA