I actually shot a nice group at 400 at the last range trip, went home, and noticed a clicking sound as I picked up my rifle to put it in the safe. Only thing I can guess is they had all been working loose and the last one holding the scope steady gave up on my last shot that day. I had shot a ton in the months prior. Terrifying to think how badly my hunt could have been if I had found it then. And before mounting my scope the screws and holes had been degreased and I torqued the bases to 28 in/lbs exactly. After that they got taken apart again I went with gobs of purple loctite, 35 in/lbs, and the mentioned fingernail polish markers.Why would you not use it? Think about the time, effort & money spend for a hunt trip. ChrisAU's story is a perfect example of why to use it. Just imagine if he missed that bull because of it.
I have a torque wrench. I will add a dot of blue Loctite and apply 15 inch lbs of torque to each. I think I will be golden then.My personal opinion is all Loctite does is make the screw hard to remove and depending on the type of head it has easy to strip. Them small Allen head screws sure like to strip out when applying enough force to break the Loctite free. I think the best option is a good inch pound torque wrench so you know what the mounts are torqued to and checked tightness as often as you want. Trick is not to torque the screw down then just keep re-torquing it as this will just keep making it tighter but instead loosen the screw just a quarter turn then re torque it when checking the mounts. In the last 5 years since owning a torque wrench and not using Loctite I have yet to find any screw on a scope mount loose, when testing this idea I would re torque the screws to see if they moved at all then back them off and torque again.
15 inch pounds is to light for base mount screws and ring mount screws. Most should be torqued to 25 or 30 inch pounds. Ring half screws are usually spec'ed at 15 to 18 inch pounds and action screws anywhere from 25 to 65 inch pounds depending on if the action is bedded or not and manufacture of stock.I have a torque wrench. I will add a dot of blue Loctite and apply 15 inch lbs of torque to each. I think I will be golden then.