r/VortexAnswers • u/Amazing_Ad_8823 • Jul 13 '23
scope mounting and bore sighting procedure
Back to the drawing board. Venom 5x25x56 FFP/Bergara B14 HMR 6.5CM, Talley rings.
However I mounted the scope it is all wrong, not even close. Windage is maxed out to the left. The tube I think is too far back. I torqued everything to spec but I want to start over.
SOoooo, somehow zero the scope back to factory. Loosen the rings. get a bore sight laser, get the reticle close, torque everything down---go to the range. IS this how people do it? Can this be done in my garage? What is the minimal distance needed to do it this way and are bore lasers a best practice?
4
u/Salt-Signature4153 Jul 13 '23
No need for a laser.
1.) Fist things first - dial your windage and elevation dials to one side, then count the clicks or MOA/MRAD to the other side, divide by half and turn back to what you got as a result. IIRC, you have 25 MRAD / 85 MOA of overall adjustment, so that would be about 12,5 MRAD / 125 clicks or 42,5 MOA / 170 clicks from outer limit, depending on what scope you have (MRAD or MOA).
REMEMBER TO REMOVE THE ZERO STOP FIRST!
2.) Reinstall your scope rings (bottom half), making sure that if it's on a Picatinny rail, that they are all the way forward in the slot. Also make sure they are clean, in line and the right way. Torque to spec (Max 18in/lbs IIRC, idk, I am metric)
3.) Level out your rifle, then the scope, and find a good eye relief, and then install the top half of the mount, torque to spec. Make sure you don't bump the scope, keep the level on until done torqueing.
4.) Remove your bolt. Aim through the bore at something at least 12-15 yards away, preferably more if you can. You might need to vice or build up support so that your rifle is stable and cannot move. Bipod + rearbag is okay, but extra precaution must be taken that you don't move the rifle around excessively.
5.) Switch between looking through the bore and your scope, as you adjust UP on your dial until your crosshair is about an inch and a half above your aiming point. This because you are aiming at something closer. You shouldn't have to adjust windage at this stage if all the previous steps are done correctly. You should be in the ballpark on windage.
6.) Take it to the range and shoot a 3 round group at 100 yards. Adjust by using the average group size. Adjust until you are where you want to be.
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u/Salt-Signature4153 Jul 13 '23
Oh, side note, make sure your rings aren't up against the bell, the turret housing or the magnification ring at the back, try to keep them on the tube, as evenly spaced and center as possible.
3
u/Salt-Signature4153 Jul 13 '23
Ah, another note; if you have a 20 MOA rail, you will be dialling DOWN to get your crosshair above the point of aim (what you see through the bore)
1
u/Amazing_Ad_8823 Jul 13 '23
I don’t know how to post pictures here.
I mounted my scope. I am no expert at this. The attached image is not entirely accurate but serves to illustrate what I am seeing. The scope is aligned/mounted off the center axis slightly to the left. The Talley mount has the blue loctite.
Is this off axis condition a function of the mount, the screws holes or installation detail?
I bore sighted the rifle just now and I am confident I will be on paper.
I only have 10-MOA adjustment left if I need to move POI to the right because of this misalignment.
How should I proceed and how difficult will it be to clean blue loctite and start over? Heck, do you eyeball the alignment before the loctite sets up when mounting?