Even with the modern tools of manufacturing, all parts have a tolerance or acceptable limit of size variation.
There are tight barrels and loose barrels, both called a ".XX" caliber (fill in your 45, 50, 54 or whatever).
That's one of the many reasons that explains why someone will ask others for a good load and when it is given they may find it doesn't work well in their gun.
There are tight barrels and loose barrels, both called a ".XX" caliber (fill in your 45, 50, 54 or whatever).
That's one of the many reasons that explains why someone will ask others for a good load and when it is given they may find it doesn't work well in their gun.