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That's a good measurement to have, but perhaps not for the reason you're thinking.
Many precision rifle shooters load to get the bullet as close to, or even into, the lands when chambering. This is done as seating depth (alternatively, bullet jump) has some degree of effect on accuracy. Using a factory barrel, his usually entails loading the bullet way out, longer than will fit a magazine (depends on the manufacturer, though; custom barrels often have shorter freebore, allowing loading to the lands without excessive cartridge OAL.) You can develop higher pressure without bullet jump, so you should approach that with a little caution.
If you jam bullets into the rifling, you may also run into problems should you have to remove a live round from the chamber (for instance, a cease fire is called); the bullet may be jammed into the rifling enough that it pulls from the case when the bolt is retracted. You end up with powder spilling into the chamber, trigger, etc.
TLDR: bullet setback on chambering is not necessarily a bad thing on a bolt gun.
Many precision rifle shooters load to get the bullet as close to, or even into, the lands when chambering. This is done as seating depth (alternatively, bullet jump) has some degree of effect on accuracy. Using a factory barrel, his usually entails loading the bullet way out, longer than will fit a magazine (depends on the manufacturer, though; custom barrels often have shorter freebore, allowing loading to the lands without excessive cartridge OAL.) You can develop higher pressure without bullet jump, so you should approach that with a little caution.
If you jam bullets into the rifling, you may also run into problems should you have to remove a live round from the chamber (for instance, a cease fire is called); the bullet may be jammed into the rifling enough that it pulls from the case when the bolt is retracted. You end up with powder spilling into the chamber, trigger, etc.
TLDR: bullet setback on chambering is not necessarily a bad thing on a bolt gun.
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