Front lens thread on a Nightforce BR vs NXS

[dstoenner]

I have a NXS and measuring the front lens hood its male threads are 61.96mm so I am pretty sure that it is a 62mm photo filter size. What I know is that the lens hood of a Nightforce BR (12-42x56) is larger than the NXS. Nightforce says the objective bell is 69mm. SO I am guessing it is a 67mm filter size.

If somebody knows or if somebody could measure the male threads of the lens hood I would appreciate it.

Thanks

David

 

[dstoenner]

Nobody has a Nightforce BR that would help me out with a measurement?

Thanks in advance

David

 

[dogdude]

PM sent

 

[dstoenner]

Dogdude helped me out with a measurement of the male threads of the sunshield. He came up with 62.55mm which probably is a 63mm photo filter thread. Not what I thought but it is a place to start. Now to put together an adapter.

David

 

[fantastic]

I like the 1/8 click on the Benchrest model for my use. NSX is 1/4.

You need to make sure you have your vertical needs covered either way.

 

[dstoenner]

I like the 1/8 click on the Benchrest model for my use. NSX is 1/4.

You need to make sure you have your vertical needs covered either way.

I have 2 NXS’s that are 1/8 moa clicks. They made them for a while. I have an 8-32 and a 12-42. Needless to say I am not selling them anytime soon

David

 

[Calgary Bill]

I have 2 NXS’s that are 1/8 moa clicks. They made them for a while. I have an 8-32 and a 12-42. Needless to say I am not selling them anytime soon

David

I wasn't aware that NF ever made the 8 click version.
I had a BR model but sold it as I like the side focus for pd shooting off a bench.

 

[dstoenner]

I wasn't aware that NF ever made the 8 click version.
I had a BR model but sold it as I like the side focus for pd shooting off a bench.

Nightforce had this idea for what the marketed as a crossover scope from benchrest to tactical. So they made a nxs 12-42 and 8-32 with 1/8 moa clicks. The disadvantage was 2 fold. The elevation dial was 10 moa per revolution and the elevation was less than the standard nxs. I think once people figured it out and quit buying them then the disappeared.

I started out with the 12-42 on my f-class rifle but tall target test showed I would run out of elevation so I put my 8-32 on and it works. I get about 35 moa even with a 20 moa rail and Burris signature rings adding another 10 moa.

David

 

[Ned Ludd]

dstoenner - If it's of any help, one of my 12-42 NXS sun shade male threads measure 61.90 mm (OD), the male threads of a 12-42 BR scope come in at 62.80 mm

My take on the NXS 1/8th MOA scopes is that in contrast to the 1/4 MOA versions, no one that owns the 1/8th MOA NXS scopes seems to be selling them. That alone is probably pretty telling. I believe the 1/8th MOA NXS scopes were all phased out after the 15-55 Competition scope was introduced. I have 3 of the 1/8 MOA click NXS 12-42s and 2 of the 8-32s, all of which will go with me to my grave. With 20 MOA rails, I get ~41 MOA elevation travel from a 100 yd zero, which is more than enough to shoot 1000 yd. I think you're wise to hang on to the 1/8th MOA NXS scopes. The NXS glass clearly isn't as outstanding as the Competition scope, but it's still very good, they're built like tanks, and they hold zero.

FWIW - some folks with 20 MOA bases have reported not being able to zero at 100, and others need a 30 MOA base to reliably zero at 1000 yd. My guess is that it has more to do with the specific action/scope mount than the internal adjustment of the different scopes, which should be consistent. I recently purchased an IOR Valdada fixed 36X BR scope and cannot quite zero it at 115 yd on a 20 MOA base. It shoots ~1.5 to 2.0 MOA high with an essentially identical load when the elevation travel is completely bottomed out, even though it has the same total elevation travel (45 MOA) as my 12-42 NXS scopes. None of my NXS scopes are even close to bottoming out at that distance. I haven't tried to measure the cant of the different scope bases, but would guess that not all 20 MOA bases are created equal.

 

[dstoenner]

Ned,

Thanks for verifying the measurements. I have yet to find any solution for going from 63 down to 62 in any combination. Seems that Hassleblad is the only user of 63mm screw in filters. Why Nightforce used that dimension is a complete mystery. 67 would have been the next best choice. phooey.

I agree that my 2 1/8 moa NXS's will be the last scopes I let go as I downsize. I have a Golden Eagle on my midrange gun and it is not as good as the NXS's.

One last thing I forgot to mention was that the 12-42 1/8 MOA NXS at 42 will not focus to 50 yards (or at least with my eyepiece focus). It will focus to 50 if I set the mag to about 30X. Once I stumbled on that I tested my 8-32 and it had no trouble going down to 50 but that was about it, no closer. Since I don't own any other NXS's I can't verify if it is a design point for all the scopes regardless of the elevation/windage turrets.

David

 

[Ned Ludd]

David - I ran into the same issue; none of the NXS scopes I own that NF lists as having a parallax setting range of 50 yd to infinity would actually focus at 50 yd; even a 5.5-22x50 scope I have wouldn't focus at 50 yd. I can't remember what mag settings I tried, but the closest distance I could get decent focus was at about 75 yd. I found this out only because I tried them on a .22lr rifle at an indoor 50 yd range. They didn't work, so I purchased the 12-42 BR scope, which has a parallax setting of 25 yd to infinity, and it did the trick.

The only think I don't care for on the BR scope is the objective [front] parallax setting. My arms are not long enough to adjust it from behind the rifle, so I have to move around to the side, which is not optimal. Nonetheless, the glass is very good and it has the closer minimum parallax setting, so it does the job. When I first read your post regarding the difference in bell diameter, I was quite surprised. Why NF would make two fairly similar 12-42x56 scopes (NXS vs BR) with a different bell diameter/thread is beyond me. I would have naively thought it would be much easier and less expensive to use a single [standardized] diameter.

 

[dstoenner]

For those who might want to know I have found out a little more. I was in my closet of my home office where I keep a lot of "stuff" and happened to run across a 62mm filter from my photography as a hobby days. So I unscrewed my NXS sun shield and tried to screw it into the female threads of the filter. No-Go It sort of fit but only about maybe a 1/4 turn. Comparing the 2 threads, the camera filter 62mm is a coarser thread than the sun shield. So am am back to square 1. Too bad Nightforce didn't stick to some of the standards in adjacent industries and not re-invent the wheel

David

 

[hogpatrol]

I have a NXS and measuring the front lens hood its male threads are 61.96mm so I am pretty sure that it is a 62mm photo filter size. What I know is that the lens hood of a Nightforce BR (12-42x56) is larger than the NXS. Nightforce says the objective bell is 69mm. SO I am guessing it is a 67mm filter size.

If somebody knows or if somebody could measure the male threads of the lens hood I would appreciate it.

Thanks

David

63mm x.75mm (thread pitch) for Nightforce BR scope.

 

[dstoenner]

63mm x.75mm (thread pitch)

Thanks

 

[FatBoy]

What are you trying to accomplish with filters that the factory coating isn't addressing?

 

[dstoenner]

What are you trying to accomplish with filters that the factory coating isn't addressing?

I guy on here sells really neat mirage tubes but does not support nxs models. He does make one for the nightforce br version. I was hoping to get a step down filter ring to adapt. But since the nxs is not a standard photo filter thread that is out of the question. My next try will be for the athlon 56mm scopes maybe there is a match. I have to figure that out. It is never straight forward sometimes

David

 

[hogpatrol]

I guy on here sells really neat mirage tubes but does not support nxs models. He does make one for the nightforce br version. I was hoping to get a step down filter ring to adapt. But since the nxs is not a standard photo filter thread that is out of the question. My next try will be for the athlon 56mm scopes maybe there is a match. I have to figure that out. It is never straight forward sometimes

David

Do you need the thread size for the NXS? If so, the 50 or 56? The size I posted is for the BR scopes. Other than that, know any good machinists? He could make one.

 

[dstoenner]

Do you need the thread size for the NXS? If so, the 50 or 56? The size I posted is for the BR scopes. Other than that, know any good machinists? He could make one.

I know the nxs is 62mm but the pitch is coarser than a standard photo filter thread. No I don’t know any machinist which was why I was trying to get an off the shelf solution.

David

 

[FatBoy]

Why not just use a mirage band?