Getting into Airgunning

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lowell

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Sep 4, 2015
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I obtained an Air rifle several years ago, a Daina RWS mod.36, 177 cal. I installed a scope on it, shot it a few times, put it away, later used the scope for another rifle, and this rifle has sat unused for at least 20+ years. I got this, pretty much as new, rifle out last week Bought a fixed power 4 x 32 x air rifle scope, and mount/rings for it, and proceeded to mount them, and try to sight them in. It was a failure. In trying to find out all that I can about Air gun scopes and mounting systems,and replacing the ones that didn't work, ones that I can afford, that is, I have become really confused. I guess what I am asking is, for some good tried and proved ideas on how to best equip, and set up my mod. 36 RWS air rifle, with as little cash as possible. How about some good ideas, and suggestions?
Lowell
 
In what way was the 4X32 scope mounting a failure, Lowell?
The scope sounds correct for the rifle...

The most likely difficulty is not being able to bring the reticle DOWN to the Point of Impact...enough. Most German spring rifles have a small amount of barrel droop (but not all) and these require special mounts that incline the scope sufficiently. One quick thing to check with an older spring gun is the breech seal (the seal on the breech face,where you load the pellet) if that has become swollen/distorted it will need replacing.

Another problem can be focussing on the target at airgun ranges - the scope may have a 100 yard min focus (Rimfire scope maybe).

Ideally the reticle adjustments needed to zero a scope are a 'few clicks' - the mount system (be it a single type or rings) should bring the POI / target close to the reticle.

Tell us exactly what went wrong - & we've all had similar problems :)
 
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You have hit the nail on the head, I could not bring the point of impact down enough with out using all the adjustment, and I don't like shimming. Also the shots seemed to be all over the target. I sent the fixed power 4 x 30 x scope & mount/rings back to the seller for replacement. I guess I expected to much out of this nice looking Air rifle scope package with a German name and a Chinese heritage. The rifle itself seems to be in excellent repair. So, now I am going to step back and start all over. I need to find out about the new type mounts available, such as the Dina- bulls eye ZR mounts that have recoil control, and allow one to use any non air gun scope. I also need to find out what kind of scope is the best for the cash, whether it needs to be variable power, AO, and just what kind of scope that I really need. Does that seem difficult enough? The first time that I scoped this gun I tried two variable power Air rifle scopes, a Tasco 4x-16x40S A/O and a Simmons 6.5-20x50 A/O , had no problem with ether. Am using them on 10/22 Ruger rifles now.
Thanks.
Lowell
 
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Hi Lowell,

Glad you responded !
First off - it does sound like there might be some barrel droop with your D 36 (the makers test their rifles at approx 20 metres at the factory and actually have their barrel guys 'shape' the resulting barrel to fit the results - sounds BAD, but actually happens THROUGHOUT the RIFLE industry, Air & Powder Burners, so dont worry about that). There has never been a totally 'straight' barrel made.

As to the mounts - you have two options a One Piece Mount or the usual two rings. The 'fix' you probably require is better suited to the One Piece Mount, the 2 rings method can be costly and complex. The units I'm thinking of have "droop compensation" built-in and look very neat (or correct) on a spring rifle.
The 'ZR' mount you mentioned is too expensive for its supposed gains IMO :) its also a bit over the top for your rifle (Diana 36).

I believe 'UTG' make suitable mounts for your purpose (Pyramid Air is a well known source).

With new scopes, when fitting, I run them through the click test (some people dont approve!) by carefully & slowly counting the total number of adj. clicks for each turret (often different), halve that total for the optimum mid setting, set them at that point before mounting the scope.

I then hope to only make a small amount of scope turret adjustment to bring the reticle to the point of impact.


PS - Dont go too long on your zeroing target 15-20 yards max - you're only establishing the basics here

(10 yards is also fine &... nobody is looking :) )
 
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Rws makes droop compensated mounts designed for their rifles, Pyramyd has them-http://www.pyramydair.com/s/a/RWS_Lock_Down_1_Pc_Mount_w_1_Rings_11mm_Dovetail_Barrel_Droop_Compensation/2406. Also, if you're at the extreme of either your elevation or right windage the springs that hold the reticle tube in the scope are relaxed enough that the scope will not hold zero. Something else that may be happening is the scope sliding rearward in the rings or the rings and scope sliding rearward due to recoil. At least you know the gun itself is accurate, a proper mounting system and decent scope should sort it out for you. Leapers scopes are IMO very good for the $, once you pass the $200 barrier you have lots of choices. good luck!
 
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