Thread: Specific Chambering for Specific Bullet

Throat length is best suited to accomodate a range of bullets rather than one specific type. Are you going to use this rifle for bench rest shooting? If not then don't worry about the throat length. I figure out which weight of bullet (not specific type) and set the throat length to engrave the rifling just as the bullet is about .020" from leaving the case. This freebore gives lower pressures and seems to give good accuracy. My main long-range .30-06 shoots consistent 0.5 MOA with this method. If you are using the rifle for hunting then the standard factory chambering reamer will be fine. 2 MOA is prfectly good hunting accuracy and most off the shelf rifles will do much better than that. Rifle accuracy is more about the shooter, the condition of the bore, and the consistency of the ammo, rather than fiddly little mechanical details.