Buble level anti cant device

I have a couple different ones on my .17 mach2, .223 and .25 Marauder. I like the idea of being able to adjust them without rotating the ring on the scope. I have a Wheeler leveler kit. But it never seems to be adjusted perfect. I seem to second guess it too much. I do believe you have to treat them just like a compas, they are correct weather you believe them or not. 
 
I currently use a scope mounted chinese version. Not really pleased with it yet it's better than nothing

I was looking for the US optics rail mounted version but they seem to be out of stock in basically any shop that ships to the Netherlands :( I'm now looking into the first degree accuracy anti-cant devices or the holland signature series.


Last Friday I've seen the effect of canting in my match result:



if you look to the targets on the left you can see that I started canting to the left on the first two targets and the last target I'm starting to cant to the right a bit. I've noticed it too late otherwise I would have scored some more points :) These are 100 meter results, over that distance cant gets a real problem.

The two fliers on the last two targets on the right side were caused by wrong use of the bipod :(
 
"broekzwans"...
I was looking for the US optics rail mounted version but they seem to be out of stock in basically any shop that ships to the Netherlands :( I'm now looking into the first degree accuracy anti-cant devices or the holland signature series.
Can't seem to find them in the states either, anyone know where to find them in stock?
 
I experienced scope cant the other day at only 75 yards. Rifle is zeroed at 100, so I was using the -4 mil-dot instead of rezeroing. Probably why my 75y groups weren't much better than the 100y. I've been looking at this one. Pricey, but I like that it's useful in both open/closed positions. If I don't do this one, I'll probably go with the US optics rail mounted. 

Brian
 
"DellaDog"
"broekzwans"...
I was looking for the US optics rail mounted version but they seem to be out of stock in basically any shop that ships to the Netherlands :( I'm now looking into the first degree accuracy anti-cant devices or the holland signature series.

Can't seem to find them in the states either, anyone know where to find them in stock?
I too was looking at these quite a while ago. I even emailed USO several times, but never heard back from them.

I was surfing Snipers Hide and discovered the reason they aren't available. As I recall, apparently they had a major screw-up producing them, and they were sent out anyway. Customers were exceedingly unhappy, and USO ended up replacing those units. I'm not sure if the replacements were any better. 

After reading all of the disgruntled responses, and how USO was rectifying their error, I decided that it was best to spend my money elsewhere. Hence the reason I went with FlatlineOps.

Here were my top choices when I was looking:
Holland's Signature
Vortex Lo Pro
FlatlineOps
USO rail mount (the flip-out, as cool as it is, just seemed that it might not be as consistently accurate as a solid unit).
Accuracy 1st (would have bought this, but they don't make one for a lefty shooter)
 
Hey GQ: I just watched that video, and to my non-expert ears, there are a lot of errors in his teaching. I read through some of the comments at the bottom of the video, which confirmed my initial thoughts.

In a nutshell:
1st: I make sure that my rifle is level to Mother Earth.
2nd: I then make sure that the reticle is absolutely in line with the barrel.
3rd: Once the above is done, I then install the bubble level. I don't center the bubble. I prefer that one edge of the bubble is touching one of the lines on the the bubble level (if that makes sense).

Here, have a read. This is the method I use. It is rather time consuming, but well worth it in the end:
http://viriato.net/airgunning/bfta_setup_manual.pdf
 
The bfta_setup_manual.pdf is a great description and procedures to set up a rifle scope.
When I first started shooting the FX Bobcat MK2 25 Cal, I encountered a great deal of frustration with cant. I went through a similar procedure as described in the previous stated manual that I learned while shooting big bore competition with the Military. I reinstalled the scope using the Wheeler Scope installation tools, set up a plumb line and a set of FX adjustable High Mount rings. I tried several installed bubble levels only to find some of which went out of true when tightened before finding one that worked at a god awful price.
I now have a true setup out to 125 yards which I can shoot with confidence. That is if I practice and do my part.
Sometimes you just have to bite the bullet and step back to make it all come together.
 


I start off leveling everything off the machined surface of the receiver. Assuming the receiver is flat, I put the scope on then the bubble level. I'm still using the receiver surface as a level surface. Rings that pinch from one side bug me. They tend to cant the scope a bit. The best ring clamps that I have found are BKL style. They pinch fairly evenly from both sides.
 
After you get your scope level with your rifle and you add a anti-cant level. If you want to check how well it is doing. I go out to 50 yards and use a poster board and a 4 ft level and make a vertical line with a pencil using the level. Of course you can do this with a plumb bob but for me its quicker just making the vertical line and checking to see if my scope's reticle lines up with the vertical line while the anti-cant shows level.

You can use a piece of cardboard at almost any distance to do this it doesn't have to be at 50 yards.