Page 5 of 7 - Bullseye ZR, for 1" or Reviews

Saves scopes

Nothing

Works great for air rifles with heavy recoil

the concept

Vague instructions that suffer when translated to English, no torque specs, cheap materials. One of the most expensive mounts on the market with instructions that tell you to just "eyeball" it? Really Diana?

Now I know why this $60 mount only has a 3 star rating, Diana manufacturing should have stayed in Germany.

Nice idea, but not trouble free

Eliminate slop from rails

Add me to the reviews indicated slop in the rails, PIO shifts, and easy to strip rear clamp bolt. Take note that there are 4 grub screws that snug the rings to the rails. These do loosen up and require attention if you begin to feel slop. You must remove the scope to acces these little grubs in the base of the rings. Even after tightening these and eliminating "some" slop, there is still clearly detectable (a few thousands?) of slop in the rails. This mount shot fine for a couple of thousand pellets, but then started having mysterious PIO shifts that I have not been able to solve. Back to the drawing board.

This product is CRAP! I have three of them and none of them can hold Zero! I am a machinist with over 40 years of high tech engineering project and model making experience. This product is a really great concept and engineering design. However having said that the company doing the machining is not doing a proper job of checking the holes the shafts are sliding in. After not being able to zero my new Hatsan 125 break barrel the shaft slop or play was suspect. The difference between whole diameter and shaft size was .002-.003 of an inch. In order for the Scope to maintain a proper zero, this fit, what is called a running fit, should be a sliding fit of not more than .0005 inch max. After gluing the shafts in place making them solid like a normal mount the gun shot perfectly acceptable tight groups. And was easily repeatable time after time.

Make the holes for the shafts a sliding fit of not more than .0005 inch max. I still like the mount for the droop compensation and the ability to use a scope with either a 1inch or a 30mm tube. More choices.

If your mount won't zero, just use instant glue to secure the shafts from moving and your gun will be a shooter.

Sits well for me on a Diana 34. Great position for eye relief and height. Construction seams very good. Droop compensation is also a plus. I have a 30mm scope, and it sits very solid in the mount. I did not try a 1", but believe it would as well. All in all, I am extremely happy so far.

I have not been able to figure out the stop pin, but I have not had any movement to date. Also, maybe it is not needed, but I would have put rubber 0-rings as a buffer between the front of the mount and the forward rings.

It is a little more than some other mounts, but if it does preserve a scope while being very stable, I think it's a great investment. The scope often moves when I close the rear cap. It makes me smile, but accuracy seams consistent with the previous mounts I used. However, it is a much more comfortable position.

Well built and reasonably priced.

Nothing

I've used this mount now for almost 3 years on a Diana AR8 Blaser .22 caliber air rifle. Over the three years I've put several tins of JSB 18.13 grain pellets through it and have not had to re-zero the rifle once! I've never had a gas ram or springer air rifle hold a zero so consistently before using a more standard single piece mount. Only PCP's... This ZR mount truly does absorb the double recoil punishment springers dole out! The scope I have on the Blaser is an inexpensive "Walmart" variety Bushnell 4 x 32 that I don't believe is rated to survive on springers. It's alive and well after 3 years! One other thing I've learned about these mounts is not to be afraid to use them on a springer that has no provision for a scope stop pin. The stop pin built into the ZR mount can be reversed so that it's not exposed and I've experienced no slippage of the ZR mounts I have on some rather powerful springers (i.e. 25 ft/lb) in my collection. Definitely a great product!

The recoil compensation appears to work in protecting the scope from the harsh recoil in my spring rifle and maintains zero without any change in point of impact (POI). I decided to buy another one for my other spring air rifle after I noticed a random change in its POI with the regular scope mounts. It works!

I highly recommend this scope mount for magnum springers or those with strong, harsh recoil. This will protect the scope from shifts in POI and damaging the internal components. Exceptions would be springers with mild recoil and those with built-in recoil compensators like some Feinwerkbau and Diana springers.

The concept, it should save on scope damage.

The screw on the mount that goes into the stop pin is too short so it couldn't be tightened. It should be 12mm. I mounted it on a Hatsan model 95 and I couldn't get enough adjustment to the left my scope turret was maxed out: Only the front two screws could be tightened. Hawke scope. I now have a 12mm screw to try, that may solve the problem.

Not much, the concept, It looks good sitting on a shelf.

Cheap soft poorly made screws,stripped out immediately. Too much lateral play in the rails. QC and tighter tolerances.

Cheap Chinese junk. If I had done my homework i would have know these where not German made. I should have returned it but i kept it as an object lesson. Caveat Emptor

This mount does take the recoil away from the scope. Overall it does what it claims, so far.

The number 3 bolt that threads into the stop pin is too short. It is the same 10 mm length as the number 1 & 2 bolts that thread directly into the body of the mount. the number 3 bolt needs to be 15 mm long to catch the threads of the stop pin correctly. It only caught one thread and then stripped the first thread out of the stop pin. It was a trip to Home Depot for a new bolt and a few dollars to fix. 1. Provide the correct length bolts for mounting. 2. Eliminate the slop in the sliding rails.

Mine had some slop in the sliding rails, as others have described in their reviews. I have not had a problem with it holding a zero due to that, YET. We'll see, over time, it continues to hold zero.