sobeell Posted January 7, 2012 Report Share Posted January 7, 2012 I have a 0 degrees picatinny rail on a sako quad heavy barrel in 17hmr , and i assembled it today, and have tried sighting it in. I am using a brand new S and B precision hunter 4-16 x 50 lm p3 (s/n 352654), and so far i'm not getting on at all...........at 100 metres with hornady 17 gr v maxs, i am at full adjustment on the riflescope and still the bullets are hitting +/-7 cm low at 100 metres. I chose this scope to give me the necessary 16 x magnification to shoot my main quarry, magpies and crows, at ranges 100-200 metres. and by my ballistics charts, zeroed at 100 metres i could use 4 x 1/2 cm clicks of bdc at 125 metres, 11 clicks at 150, 18 at 175 metres, and 27 at 200 metres to suit the trajectory of the ammunition. But at full scope adjustment, as discussed, i am still 7cm too low, i am at the extreme adjustment on the scope. Is this normal with this set up with this calibre, at this range, with this scope, or is their a fault with the scope ?. I have 30 mm sako optiiock rings mounted onto the picatinny rail with sako optilock weaver bases, the rings are the medium version (36.5mm high) and so leave the centre of the riflescope approx 56 mm above the centre bore of rifle. and there is a free distance of 15 mm from outside of objective lens to the top of rifle barrel, but even if i use the extra low sako optilock rings (30.5mm) that would only take 6 mm off the bore/scope height, leaving the centre's at 50mm. Would getting the scope closer to the barrel by this 6 mm get me on the target. I don't think so, and so i am asking what else can be done, to get this riflescope to work with this rifle, and calibre, and ammunition. I know of another member with the same 0 picatinny rail on a sako quad with a Leupold VX-3 6.5-20 x 40 LR with Leupold QRW mounts, but has no issues with same ammo. Have i done something fundamentally wrong in assembly ?. I have taken the BDC turret ring off, and moved the height point of impact adjustment as far as it goes, but this gets me no nearer than the 7 cm mentioned above. I did fire a few rounds with the BDC turret ring off, but surely this would'nt make any difference Pic Attached Link to comment Share on other sites More sharing options...
andybrock Posted January 7, 2012 Report Share Posted January 7, 2012 I have a 0 degrees picatinny rail on a sako quad heavy barrel in 17hmr , and i assembled it today, and have tried sighting it in. I am using a brand new S and B precision hunter 4-16 x 50 lm p3 (s/n 352654), and so far i'm not getting on at all...........at 100 metres with hornady 17 gr v maxs, i am at full adjustment on the riflescope and still the bullets are hitting +/-7 cm low at 100 metres. I chose this scope to give me the necessary 16 x magnification to shoot my main quarry, magpies and crows, at ranges 100-200 metres. and by my ballistics charts, zeroed at 100 metres i could use 4 x 1/2 cm clicks of bdc at 125 metres, 11 clicks at 150, 18 at 175 metres, and 27 at 200 metres to suit the trajectory of the ammunition. But at full scope adjustment, as discussed, i am still 7cm too low, i am at the extreme adjustment on the scope. Is this normal with this set up with this calibre, at this range, with this scope, or is their a fault with the scope ?. I have 30 mm sako optiiock rings mounted onto the picatinny rail with sako optilock weaver bases, the rings are the medium version (36.5mm high) and so leave the centre of the riflescope approx 56 mm above the centre bore of rifle. and there is a free distance of 15 mm from outside of objective lens to the top of rifle barrel, but even if i use the extra low sako optilock rings (30.5mm) that would only take 6 mm off the bore/scope height, leaving the centre's at 50mm. Would getting the scope closer to the barrel by this 6 mm get me on the target. I don't think so, and so i am asking what else can be done, to get this riflescope to work with this rifle, and calibre, and ammunition. I know of another member with the same 0 picatinny rail on a sako quad with a Leupold VX-3 6.5-20 x 40 LR with Leupold QRW mounts, but has no issues with same ammo. Have i done something fundamentally wrong in assembly ?. I have taken the BDC turret ring off, and moved the height point of impact adjustment as far as it goes, but this gets me no nearer than the 7 cm mentioned above. I did fire a few rounds with the BDC turret ring off, but surely this would'nt make any difference Pic Attached Might be worth you just taking off your rail and trying it the other way round just in case it isn't 0 degrees? Link to comment Share on other sites More sharing options...
Chris-NZ Posted January 7, 2012 Report Share Posted January 7, 2012 I'd almost think you had a sloped base installed backwards NO idea what's going on there if all is as you say. I would optically centre the scope and fire a shot at say 50yds and see how far off the optical axis is Chris-NZ Link to comment Share on other sites More sharing options...
eldon Posted January 7, 2012 Report Share Posted January 7, 2012 Might be worth you just taking off your rail and trying it the other way round just in case it isn't 0 degrees? +1 sounds like you have a rail with elevation that you are cancelling out with the scope adjustment. Spin it around and report back. The scope does look a bit high though although that is a separate issue. Link to comment Share on other sites More sharing options...
sobeell Posted January 7, 2012 Author Report Share Posted January 7, 2012 Guys appreciate your answers it is a 0 moa pic rail it stacks up with the verniers........and i have it loctited to the rifle. it only fits the rifle 1 way, so cant be flipped...... i have also just noticed that the windage is also almost at the end of its range to find zero. the dot on the dial on the s and b scope is right off. i have had these rings on a sako 85.....no problem these are new sako weaver optilock bases agreed , it is high , about 18 mm.........but it needs space to change barrells/calibres on the quad. on the optilock rings, there are 2 screws each sideto tighten the top 1/2 ring to bottom 1/2 ring .......on one side , 1 of the screws has stripped the threads on the bottom 1/2 ring............would that make that much of a difference..........dont think so also should mention i have a scirroco moderator fitted.........but that dosn't change point of impact on or off as far as i can tell. Thanks.......... Link to comment Share on other sites More sharing options...
andybrock Posted January 7, 2012 Report Share Posted January 7, 2012 Not sure then buddy, I think it has got to be an alignment issue some where, or if you are really unlucky a damaged scope? Link to comment Share on other sites More sharing options...
Gandy Posted January 7, 2012 Report Share Posted January 7, 2012 From memory optilocks are on a tapered base so that windage issues can be sorted, hence why they have the ring inserts to allow movement. I would just read instructions and have a play about if new. That type of distance is far too much to start shimming. Make sure both screw for optilocks are on the same side also?? Clutching at straw a bit afraid. Link to comment Share on other sites More sharing options...
eldon Posted January 7, 2012 Report Share Posted January 7, 2012 From memory optilocks are on a tapered base so that windage issues can be sorted, hence why they have the ring inserts to allow movement. I would just read instructions and have a play about if new. That type of distance is far too much to start shimming. Make sure both screw for optilocks are on the same side also?? Clutching at straw a bit afraid. Gandy and I thought you were going to say make sure your turning the turrets the right way :lol: Link to comment Share on other sites More sharing options...
landkeeper Posted January 7, 2012 Report Share Posted January 7, 2012 have you another scope you can pop in and see what happens with that, that would discount the scope being the problem possibly Link to comment Share on other sites More sharing options...
devilishdave Posted January 7, 2012 Report Share Posted January 7, 2012 The height shouldn't be a problem I had my S&B 2 inches over the barrel of my rifle before I managed to get some lower mounts. Could you try swaping the front and rear mount/ ring around to see if that helps. Dave Link to comment Share on other sites More sharing options...
DL. Posted January 8, 2012 Report Share Posted January 8, 2012 I have a Sako Finnfire that is on the mechanical limit of the scopes elevation at a 75m zero. My plan is to attempt to lower the height that the scope is mounted at, so that the objective lens is a bit closer to the barrel. I'll be fitting a picatinny rail, and hopefully source some burris signature zee rings with offset inserts, to offer a bit of rough adjustment, and have the scope in the most useable part of its windage and elevation. http://www.burrisoptics.com/sigrings1.html#2 + This thread may be of interest. http://ukvarminting.com/forums/index.php?showtopic=11408&st=0&p=97210&hl Link to comment Share on other sites More sharing options...
Gandy Posted January 8, 2012 Report Share Posted January 8, 2012 Gandy and I thought you were going to say make sure your turning the turrets the right way :lol: We all have off days, they are quite complicated turrets thingys you know. Link to comment Share on other sites More sharing options...
baldie Posted January 8, 2012 Report Share Posted January 8, 2012 Make sure the barrel is installed correctly. Take it off, replace, and double check the locking screw is tight. Link to comment Share on other sites More sharing options...
tackb Posted January 8, 2012 Report Share Posted January 8, 2012 Set your scope to mechanical zero and shoot for group at 50m ? Still no joy then try the scope on another rifle , or another scope on your rifle ? Slowly by a process of elimination you should be able to narrow down the possible causes until its obvious what it has to be ? There is a couple of other options one of which is to strip it all down again and start again the other is to give it to a riflesmith to have a look ? Is the whole set up new to you? Link to comment Share on other sites More sharing options...
sobeell Posted January 9, 2012 Author Report Share Posted January 9, 2012 Got a leupold with 30 mm warne rings to try, these rings should fit the pic staight off cheers l Set your scope to mechanical zero and shoot for group at 50m ? Still no joy then try the scope on another rifle , or another scope on your rifle ? Slowly by a process of elimination you should be able to narrow down the possible causes until its obvious what it has to be ? There is a couple of other options one of which is to strip it all down again and start again the other is to give it to a riflesmith to have a look ? Is the whole set up new to you? Link to comment Share on other sites More sharing options...
sobeell Posted January 9, 2012 Author Report Share Posted January 9, 2012 what is mechanical zero ? Set your scope to mechanical zero and shoot for group at 50m ? Still no joy then try the scope on another rifle , or another scope on your rifle ? Slowly by a process of elimination you should be able to narrow down the possible causes until its obvious what it has to be ? There is a couple of other options one of which is to strip it all down again and start again the other is to give it to a riflesmith to have a look ? Is the whole set up new to you? Link to comment Share on other sites More sharing options...
SteveW Posted January 9, 2012 Report Share Posted January 9, 2012 what is mechanical zero ? Have a look here, Sobeell. http://www.snipercountry.com/Articles/MechanicalZero.asp ATB Steve Link to comment Share on other sites More sharing options...
fizzbangwhallop Posted January 9, 2012 Report Share Posted January 9, 2012 I have a Sako Finnfire that is on the mechanical limit of the scopes elevation at a 75m zero. My plan is to attempt to lower the height that the scope is mounted at, so that the objective lens is a bit closer to the barrel. I'll be fitting a picatinny rail, and hopefully source some burris signature zee rings with offset inserts, to offer a bit of rough adjustment, and have the scope in the most useable part of its windage and elevation. http://www.burrisoptics.com/sigrings1.html#2 + This thread may be of interest. http://ukvarminting.com/forums/index.php?showtopic=11408&st=0&p=97210&hl Leading on from the link to my original thread given above by DL..... I've not had a problem with my Swarovski AV6-18x50's, Sportsmatch inclined mount sets on the CZ 17HMR and the Sako Finnfire .22 since I discovered there must be a difference between the 2 mounts(!!??). Unfortunately, I guess using the Sportsmatch Inclined wouldn't work on a Quad as you need sufficient clearance between 'scope and barrel to be able to change barrels - my 'scopes are so close to the barrels that there's not even enough room to fit a Butler Creek. Having said that.. if you don't intend to switch barrels it wouldn't be a problem with the lack of clearance.... but then, easy enough to whip off the mount, swap the barrel and replace the mount? ....... just don't overtighten the sideplate of the Sportsmatch as you run the risk of cracking the action!! Yeah, yeah... I know, reader... I did just that on my original Finnfire! Before I sussed the Sportsmatch mounts I was going down the Burris .22 Signature Mounts and Offset Rings route but had to use the 'high' rings which were just too high and looked totally naff. Leading on from DL's mention of the Burris Signature Zee rings above, in an attempt to fit an NV 'scope to one of the rimfires I bought a pair of Delrin bases from J&P Springs for the Zee Rings on the off-chance they might fit the NV sight.... they don't. But, they slide over the dovetail and the Zee rings clamp them in place, so actually lower than the aftermarket rails and they won't mark your dovetail. https://www.jnpgunsprings.com/index.php?cPath=12 That's me, hope you suss it...... drove me nuts 'til I sussed it! atb Fizz Link to comment Share on other sites More sharing options...
tackb Posted January 9, 2012 Report Share Posted January 9, 2012 what is mechanical zero ? Sorry only just seen your question but I think Stevies link covers it ? Have you sorted the problem yet? Link to comment Share on other sites More sharing options...
ejg223 Posted January 9, 2012 Report Share Posted January 9, 2012 Had to re-work several optilocks, Sako does not work as accurate as many think. In this case front mount was taken down by about 0.5mm ....some tolerance. edi Link to comment Share on other sites More sharing options...
sobeell Posted January 10, 2012 Author Report Share Posted January 10, 2012 Had to re-work several optilocks, Sako does not work as accurate as many think. In this case front mount was taken down by about 0.5mm ....some tolerance. edi not sorted, it willbe the weekend before i get to try the leupold and warne mounts beginning to think its the optilocks, and glad to see someone else questioning that aspect........ Link to comment Share on other sites More sharing options...
fizzbangwhallop Posted January 24, 2012 Report Share Posted January 24, 2012 not sorted, it willbe the weekend before i get to try the leupold and warne mounts beginning to think its the optilocks, and glad to see someone else questioning that aspect........ Any joy? atb FBW Link to comment Share on other sites More sharing options...
Finman Posted January 24, 2012 Report Share Posted January 24, 2012 Had to re-work several optilocks, Sako does not work as accurate as many think. In this case front mount was taken down by about 0.5mm ....some tolerance. edi Hi Edi, on the manual that comes with the optilocks, it mentions that the forward base should be fixed flush with the posterior surface of the receiver, when used in Sako/Tikka rifles. I see from the picture that you have it much more forward than recommended and that may be imparting lateral stress on your scope, giving some difficulty when zeroing... best wishes, Finman Link to comment Share on other sites More sharing options...
liongeorge Posted February 17, 2012 Report Share Posted February 17, 2012 I have a quad with a 0 picatiny rail I got from america . I use the Leupold QD rings. I have had no probs with zero, and can remove barrel and scope and replace with very little loss of zero. They are very good and quite affordable. I recommend them as you will be able to bring the scope down a bit. As suggested above make sure the barrel is fitted correctly , clean all surfaces and make sure you close the bolt before you tighten it. Hope you get it sorted. Link to comment Share on other sites More sharing options...
ejg223 Posted February 17, 2012 Report Share Posted February 17, 2012 Hi Edi, on the manual that comes with the optilocks, it mentions that the forward base should be fixed flush with the posterior surface of the receiver, when used in Sako/Tikka rifles. I see from the picture that you have it much more forward than recommended and that may be imparting lateral stress on your scope, giving some difficulty when zeroing... best wishes, Finman Thankfully got rid of all optilocks and don't want to see any again. How can lateral stress be put on a optilock if the ring screws are tightened after the bases are tightened? Anyway either position would have not changed the height. edi Link to comment Share on other sites More sharing options...
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