Re: scope mounting
Jsmythe: I would use the blue loctite on the bases for sure. I carry a couple of tiny 'blister capsules' of Blue loctite in my field toolkit, in fact.
But for the rings bolts and the ring cap screws s I would not use Loctite. Instead, buy and use an inch-ounces torque driver.
Check your torques regularly.
Loctite will prevent screws from turning out of their holes, but that's not the only factor in keeping your setup in alignment and tight. Over time, screws will stretch under recoil and constant load. If you Loctite the cap and ring screws, you will never be able to check/set torques as the Loctite will bind them.
When you do check the torques (For LE in particular) make a note in your databook! Note any screws that seem to be loose and investigate or replace. Overtightening a screw even once can stretch it beyond its elastic limit, making it worthless.
And don't make the mistake of getting a foot pounds torque wrench! You want one that measures in inch pounds or inch ounces. IMHO, inch ounces is better as it offers much more flexibility. Mine goes from, I think, 10 inch ounces to 60 inch ounces. I use a little red paint to mark the torques on the rings and also put index marks on the screws. If interested, I'll post pix of mounts and torque driver later when I am near a camera.
Even w.out Loctite, the odds of things getting loose (with proper installation) is still very small under any normal use. But belt and suspenders approach never hurts where precision shooting is involved.
Cheers,
Sirhr