FX-No Limit Mount on a Springer?

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Crutcherro1

Crutcherro1

Member
May 5, 2015
479
7
TN, United States
I replaced a Williams Peep sight with a scope this weekend and discovered that I have some serious barrel droop on my Beeman R7.

I changed the mount to a FX-No Limit. So far this mount seems to be working fine. But I’d like to add a stop pin. The mount is threaded for a stop pin. 

Does anyone know the size of the pin and/or if the mount can continue to hold zero? Thanks.

Crutch
 
I put the mounts on a Walther Terrus for the same reason, major droop. I found that the rear elevation would change over time. What I did was cleaned the slots and rings pieces with brake cleaner and put a small amount of locktite in the slots. Hasn’t moved since. When I asked about it, I was told no limit mounts were not springer rated. I used a small, lighter scope to help (2-7X32 Hawke Airmax).
 
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Christian,

I still like the Williams peep sight. But I can’t shoot flies at 10 to 20 yards. The gun is good enough but my eyes aren’t. This weekend I shot the R7 with an Athlon Talos 3-13x40 and a FX No-Limit mount at only 10 yards in my garage. It’s crazy accurate. If it holds up at a little longer distance, it will be perfect for multiple targets of opportunity :)

Crutch


 
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I put the mounts on a Walther Terrus for the same reason, major droop. I found that the rear elevation would change over time. What I did was cleaned the slots and rings pieces with brake cleaner and put a small amount of locktite in the slots. Hasn’t moved since. When I asked about it, I was told no limit mounts were not springer rated. I used a small, lighter scope to help (2-7X32 Hawke Airmax).
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MMCM13,

My R7 has such light recoil, I’m hoping that I won’t need to do anything. I’ve now shot over a hundred pellets with a 16.2 oz Athlon scope and the No-Limit mount. I haven’t had a POI change yet. I’ll keep an eye on it and will try your fix if needed. Thanks.

Crutch
 
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I have FX No Limit mounts on all of my PCP’s, adjusted for optical center on my scopes to my 20 yard zero and love them best PCP scope mounts available in my opinion. But, on my top springers I use the RWS lockdown one piece mount it has a built-in slope for barrel droop, or for allowing more elevation adjustment. They are rock solid awesome on springers with a lock pin! Available in 1” or 30mm. They’re worth more than they cost, very affordable as well.

https://www.pyramydair.com/s/a/RWS_Lock_Down_1_Pc_Mount_w_1_Rings_11mm_Dovetail_Barrel_Droop_Compensation/2406

https://www.pyramydair.com/s/a/RWS_Lock_Down_1_Pc_Mount_w_30mm_Rings_11mm_Dovetail_Barrel_Droop_Compensation/3155

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FYI

FX USA got back with me very quickly. I was impressed. They said the FX No-Limit 1” dovetail mount stop pin screw size is M4. I measured the mount for the screw length between 5.6 and 6mm. A hex head screw M4-0.70 x 6mm should work fine for a stop pin. I’ll give it a try if the POI changes along with MMCM13’s cleaning and locktite. 

If that doesn’t hold POI, then I’ll try JoeCool’s mount suggestion. 

Thanks for the input👍
 
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FYI

FX USA got back with me very quickly. I was impressed. They said the FX No-Limit 1” dovetail mount stop pin screw size is M4. I measured the mount for the screw length between 5.6 and 6mm. A hex head screw M4-0.70 x 6mm should work fine for a stop pin. I’ll give it a try if the POI changes along with MMCM13’s cleaning and locktite. 

If that doesn’t hold POI, then I’ll try JoeCool’s mount suggestion. 

Thanks for the input
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Click to expand...

How did it go? Have you tested it yet?

My FX no-limit doesnt work on my FWB 300s with a Hawke Sidewinder 8-32x56..


 
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N2AirJun sent me this about the stop pin size (see below)



N2AirJun Sent 2 days, 23 hours ago

Hi Crutcherro1,

Since the thread was a bit old, I thought I’d answer here. I did the same as you, using FX No-Limits Mounts for my Gamo Mach1. The mount locks down, but I didn’t want to take the chance of it moving, so I added stop pins. 

The size that worked for me are:

M4x0.70 (8mm OAL) Socket set screw with dog point

Any hardware store should have them. 




 
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