I almost screwed up!

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Erik Cortina

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Used to work levels by flipping it over, if it reads the same, level is good. If it reads different....no bueno!!

markroper

I use a water level at work to level houses, mobile homes grades. Gas jug, 100 foot clear tube and some red die. Always double check things.. but always use your gut too. Great vids

burrco

I literally laughed out loud! You can tell you have kids, "Always assume everything is broken!" LMAO

jhnstuhlmiller

I had the same problem!! I tested multiple from Amazon just because. Found one that was not accurate. I was happy I assumed they were broken haha

Dmounts

Facts I'm glad your pointing this out. I also noticed the same thing with different brand tape measures. Careful with those tapes that have loos metal ends!

killabeagle

I use a plumb bob string parallel to elevation reticle, the run the knob. Use bubble levels that clamp to the tube not the pic.

dragonflyfab

Why the Picatinny mounted level instead of one that mounts to the optic?

I've tried both but at least at the cheaper end, the ring style level gave me the ability to correct for manufacturing errors. Perhaps if I'd bought a decent one, this wouldn't have mattered...

ExFGuy

I always check new levels against my tool levels on a flat surface before I use them to level a scope. I've had a few that didn't check out.

jonathanpeyton

a sharpie would fix those incorrect lines 😂

operationalaf

Just because the one in the front is centered doesn't mean that it is "correct", it just means that that one is calibrated / trued to the rifles current position and the scopes tracks correctly because it was calibrated / trued the that level being held in a trued position

The other level, when set up on a rifle would work just fine if the scope's vertical axis was trued to it.

All that this video really shows is that the two levels glass tubes axial centerlines are slightly different from one another relative to their mounts and nothing more. They very well both might be out of square relative to their respective housing (i.e., pic rail mount housings) but that doesn't matter because you true the scope to the level when it is positioned so that the bubble is centered.

If you wanted to check and see if one was square more closer to square than the other, just mount on with the rifle (or a piece of Pic rail) securely locked into position (being true level doesn't matter, just needs to be close to level) and not the bubble position, then take it off the rail and turn it 180 and mount it back onto the pic rail and see if the is in the same position (or off by the same amount in the same direction as when it was mounted the other way).

If its in the same position (or off by same amount in same direction, then the glass tubes axial centerline is square to the mount housing its in. If its off (or off by a different amount regardless of the direction, the its out of square.

Being out of square is irrelevant though for this application because the rifle can be canted to true the bubble and the scope rotated in the rings to true it to the level when the rifle is canted to true the level.

This "out of square" aspect is why if you have a scope that you plane to swap from rifle to rifle, use rings or a mount that the level is made into or mounts directly to rings or mount or is attached directly to the scope itself, not a separate pic rail mounted level. By having the level in or directly attached to the rings or mount or directly attached to the scope itself, the the scope to level relationship is maintained regardless unless the scope is moved in the rings / mount at some point.

No matter how good the parts are, if using separate parts, that are not in a permanent position relative to each other, variation can and likely will occur, manufacturing tolerance stackup alone can be enough to cause a difference... As mentioned above, if you want to be able to swap a scope from one rifle to the next, the level need to be mounted with the scope in a way that it will transfer to the next rifle while never losing its square relationship with the scope's vertical axis (i.e., the level made into or mounted onto the rings or mount itself, or using a level that clamps to the scope tube).

CJ-tysv

I like the scope level from Holland ? but the movable ones from flatline are nice. much easier to level

prone_wolf

Had a client yesterday, when I gave him his rifle back, I told him I did not correct the cant I saw in his scope. I don't do that as some shooters like a cant. He said to me that was an illusion because I'm right handed and it's a left handed rifle...think about that. Level is level if your working off the rifle to scope universe.

johnseptien