Barrel Swap with Scope Mounted?

[HTSmith]

I generally don't change barrels that often and have always taken the scope off as a precaution. Tomorrow I'm planning on testing 3 different barrels on the same receiver and stock. Would it be safe to just leave the scope mounted during the swap?

I use a bit of never seize on the threads and torque to 80 lb-ft. Appreciate your opinion.

 

[tobnpr]

I assume you're using a rear-entry wrench into the bolt raceway/locking lugs...
I don't see any reason that the scope would need to be removed, it's not "in the way" like it would be with an "around the receiver" type action wrench.

 

[HTSmith]

Yes rear entry wrench. Thanks

 

[Lucky Shooter]

Three answers------nothing firm.

I've been concerned that bumping while breaking the barrel loose
or when tightening the barrel could possibly harm the scope.

Another concern is that the fat breech end of the barrel might not
clear the scope bell when sliding the barrel forward in the barrel
channel.

I've noticed that if all barrels were "throat and muzzle" indicated,
each barrel's POI will be reasonably close to the previous barrel.
This has held true for me, even if the scope is removed and replaced.

Good things happen when you "two point" indicate and taper bore.

A. Weldy

 

[AlNyhus]

I take the barrelled action out of the stock and make sure the barrel vise is far enough ahead so the scope doesn't whack it when it cracks loose.

Good shootin' -Al

 

[BoydAllen]

I leave scopes on, apply generous torque, and never bump or whack. No problems ever.

 

[gunsandgunsmithing]

I do it all the time. Never an issue..yet.

 

[AlNyhus]

On my stuff with multiple barrels, I make a witness mark on the action. Once a barrel is torqued, I make another witness mark on the shank. The next time they're swapped, it's as easy as lining up the marks...no torque wrench needed. -Al

 

[HTSmith]

On my stuff with multiple barrels, I make a witness mark on the action. Once a barrel is torqued, I make another witness mark on the shank. The next time they're swapped, it's as easy as lining up the marks...no torque wrench needed. -Al

Gonna give that a try for sure!

 

[Ggmac]

you will find out if your scope base screws are too long .

 

[HTSmith]

you will find out if your scope base screws are too long .

Panda dovetail.

 

[Ggmac]

Panda dovetail.

Well shoot , dont worry about the screws ,

 

[Dusty Stevens]

No way id shock a good scope with that kind of breakaway torque-never for me, but im sure some get away with it. Hell some dont even know when a scope goes bad. On a panda dovetail it takes less than a minute to remove a scope, seconds mostly. Why take a chance?

 

[ebb]

Way too big of a risk for just a moment or two time saved.

 

[HTSmith]

Well it rained me out today anyway