So I’m going to cover the proper adjustment, setting, and re-setting of the Bushnell Zero Stop for the ERS/XRS in this article. This keeps coming up again and again and frankly, it’s Bushnell’s fault. Their instructions for setting the zero stop, at least those included with mine, are terribly written and confusing. I’m going to break down the process for everyone, step by step, for setting and resetting the Bushnell Zero Stop. The process is the same for the Bushnell ERS and XRS in the Elite Tactical series with the 34mm maintubes. If you know anybody that’s having issues with this or struggling, point them to this article so we can help them out!
Bushnell Zero Stop
What is a zero stop? Its a mechanical setting which physically “stops” the turret from turning any further. Why is that useful? For the same reason it’s called a zero stop! By setting a zero stop on your scope you limit the turret from turning below the zero mark. If you are a competitive shooter, a Military or Law Enforcement shooter, hunter, or any other type of dynamic shooter…your zero setting matters. If you are rapidly dialing adjustments from one range to another its often useful to be able to dial precisely back to the rifle’s zero mark. Without a zero stop, its possible to dial below where the scope is actually zeroed with the rifle.
This results in being on the wrong revolution of the scope for the distance you are trying to dial. This is referred to as getting lost in the dial. It’s easy to see why this is possible. If you’re a revolution lower than you think, you might dial from zero to 5 MILS for a 600 yard shot, but in reality your scope is at -5 MILS and you will be putting rounds in the dirt in front of the gun. By setting a zero stop at the point you have the scope and rifle zeroed out, you know the closest point you can dial the scope to is 100 yards, or whatever distance you picked for the zero. The zero stop makes it impossible to dial below that point!
Setting the Bushnell Zero Stop
Setting the Bushnell Zero Stop on the Bushnell ERS/XRS scopes is simple once you understand it, unfortunately the directions don’t help with learning the process. Step 1 – zero the scope, dial until your point of aim and point of impact match. Step 2 – remove the turret cap using a flat blade screwdriver or coin to unscrew the cap. Set that aside. Step 3 – pull the turret cover with markings off the turret. Set it aside. Step 4 – using a 1.5mm hex wrench, loosen the two set screws for the zero stop. Step 5 – stick the hex wrench into the hole in the top of the turret and push the stop down till it bottoms out. Step 6 – Pull the inner black turret up, unlocking the erector dial. Step 7 – dial the inner black turret, clockwise, until it bottoms out. This may be a few clicks, or a full turn and a half, dial clockwise until it stops. The zero stop is now set. You aren’t done yet, though!
Now that the stop is set: Step 1 – push the black turret back down to lock the erector. Step 2 – tighten the two set screws on the zero stop. Step 3 – replace the turret cover with markings so that the zero is now lined up with the current scope setting. Step 4 – replace the turret cap and o-ring with a screwdriver or coin. Congratulations, you set the zero stop on your Bushnell Elite Tactical XRS/ERS scope! Now we’re going to go through the process of resetting the stop in the event you are re-zeroing the scope on a new rifle!
Re-Setting the Bushnell Zero Stop
Resetting the zero stop on the Bushnell ERS/XRS is almost identical to setting it in the first place with one key difference. The steps are: Step 1 – remove the turret cap using a flat blade screwdriver or coin to unscrew the cap. Set that aside. Step 2 – pull the turret cover with markings off the turret. Set it aside. Step 3 – using a 1.5mm hex wrench, loosen the two set screws for the zero stop. Step 4 – Pull the inner black turret up, and dial counter clockwise a half turn. Step 5 – Stick the hex wrench, and a second wrench of the same size, into the tops of the set screws, use the wrench in each screw as a lever, pull the brass zero stop UP! with your fingers while using the top of the inner black turret as a rest for your thumbs. Step 6 – Tighten the two set screws on the zero stop. Step 7 – Replace the turret cover, and top cap. Notice we didn’t push the inner turret back down, we don’t want to force the zero stop down after pulling it up. Also, at the top of the turret’s travel with the zero stop all the way up, the turret won’t lock. It will lock at the bottom, where you have it zeroed, but if you dial max elevation with the zero stop pulled up you won’t be able to lock the turret.
You will notice the cap sits up higher on the erector assembly now, you should see more of the turn indicator arrows beneath the cover. You can check to see that you’ve done this properly by dialing the elevation knob. You should have about 30 MILS of travel from top to bottom. My XRS used for this article has 32 and a few tenths. If you are only getting 20 MILS from the highest point to the lowest, the zero stop needs to come up higher. You need to repeat the process and pull a little harder on Step 5! In fact, to get maximum travel, with the zero stop up to its highest point, at the top of the turret’s travel you won’t be able to lock the turret because it won’t drop far enough to engage the turret lock. If you’ve followed the instructions this far, you should know understand the process for setting and resetting the zero stop on the Bushnell Elite Series XRS/ERS scopes equipped with a zero stop.
As always, if you have comments, a question, a tip to add…drop them in the comments below. For whatever reason Bushnell’s printed instructions for setting the zero stop suck. So hopefully this will clear it up for anybody having trouble with it. This process was tricky using those regular instructions, but once you understand it and you’ve done it a few times, it’s a piece of cake. If you want space below the zero mark, after you’ve set the zero stop, dial the inner turret counter clockwise 5 clicks from where it stops. Then follow the instructions and you will be able to dial a half mil below your zero mark.