Thread: Barrels and Accuracy

Originally Posted by Tentman

Even the finest barrelmakers will have variation in the bore and land dimensions, and no barrel is perfectly straight. So when a knowlegable gunsmith seeking the finest accuracy shortens a barrel he/she will take careful measurements to ensure the dimensions at the crown are optimum. Most gunsmiths dont have the skills or equipment to do it so just wack it off at the desired length. Mostly its ok, sometimes a barrel that previously shot well might now not. The same sort of principles also apply to threading barrels for suppressors.

Ok, so you are saying there are 'good' and 'bad' / 'loose' and 'tight' variations in the actual barrel's bore/rifling.
So if cut for shortening at the wrong place = worse accuracy.
And I suspect it's no use re-cutting a new crown at that same place.....you would be better getting the barrel cut back another inch and then recrowning (to hopefully get out of the 'loose' variation).... Correct or not?