[Elenya]

Thanks for your reply. From what I understand then, even if the weapon is folded, it wouldn't be a problem anyway with a laser boresighter. How long would it take to adjust it? A few seconds?

[Fixit]

The scope is attached rigidly to the parts that are rigidly attached to the barrel. Folding the action, disassembling it will not change the zero enough to matter in shootings like these.

Heck, there are even some very precisely manufactured scope mounts that allow you remove the scope and have it return close enough to zero that you need not re-zero it on a rest.

[Cobra Scott]

It would take a few minutes to set it up and check the scope for alignment. Under cover (say, inside a van) it would be feasible, though it probably wouldn't be necessary except between shootings, if the weapon was handled roughly.

It is basically a little laser that fits in the firearm in place of a bullet. It projects a red beam out the end of the barrel, theoretically along the path of the bullet. Wherever the red beam strikes, that is where the bullet "should" hit when fired. It is simply a matter of looking through the scope, and adjusting the scope so that the cross-hairs coincide with the red dot on the target. This is greatly simplified for explanation, there are other factors that a marksman would consider when using one.

I think you may be on to something solid though, if this is the same rifle each time, then the shooter has a special affinity for it and probably takes great pains to care for it. Tossing it all in a rucksack might not be his or her style.