bladeracer wrote:Assuming the scope has 40-minutes of adjustment each side of center (it may not), and that it was roughly centered when you mounted it, you have adjusted it the full travel and are still 14MoA short - was it aiming about 50+MoA (say 400mm at 25m) to the right when you when you boresighted it?
Are you sure you are adjusting the turret in the right direction? Maybe it only has about 15MoA of adjustment and you've gone the wrong direction?
straightshooter wrote:If things were OK in prior scope setups then the thing to consider is what exactly have you done in the process of fitting the scope.
Are the ring correctly fitted to the dovetails?
Answer - I did some checking on this and they seemed to be at the time. I also did the same when I swapped the rings Fr 2 Bk etc.
Is there some possible defect in the rings such as a mismatch in height or a bent scope tube?
Answer - If the tube was bent I'd have expected it to be dodgy on the previous rifle it was on (22/250). Like wise with the rings on a previous rifle, where they seemed to work fine.
If you put a steel straight edge on the scope mounting surface of the ring bottom halves when attached to the receiver what do you see?
Answer - will check this out. Great tip .
Was the scope reticle in the center of it's windage and elevation ranges prior to boresighting?
Answer - Yes. It has a total of 10 complete turns, and I set it at 5 prior to fitting.
Paul wrote:bladeracer wrote:Assuming the scope has 40-minutes of adjustment each side of center (it may not), and that it was roughly centered when you mounted it, you have adjusted it the full travel and are still 14MoA short - was it aiming about 50+MoA (say 400mm at 25m) to the right when you when you boresighted it?
Are you sure you are adjusting the turret in the right direction? Maybe it only has about 15MoA of adjustment and you've gone the wrong direction?
Thanks BR,
On first bore sighting @25m with the barrel sighted a spot, the scope reticle showed it was sighted about 300mm to the left @25m, or to flip that over to 'how far right would it have been' if it was to have fired then, it would have hit 300mm to the right of POI. Make sense? I don't think the scope has 40 MOA adjustment, maybe a little less. Having said that, its not been an issue before on two other rifles (22-250 & 22LR) which shot 1-1.5 MOA.
I adjusted the turret as much as possible and it brought the POI to be around 100-130mm to the right. Hence needing more left adjustment. This also confirms Ive been turning the turret in the correct direction, but I know what you mean as in bore sighting, the direction to turn is counter to what one normally does when just adjusting POI.
Paul
deanp100 wrote:The 8x56 Nikkos were around in the 70-80’s. They made a 4-12, an 8 and a 10 x56. Marketed as a fox hunter scope. The old ad had a fox picture on it. Regardless of what people say about new nikkos , the old ones were jap made and were really good basic scopes.
SCJ429 wrote:Burris Signiture rings are very strong and are well regarded. The plastic inserts cannot be deformed by the pressure of tightening the rings and they are very kind to your scope tube. I would have no hesitation in using them on any of my scopes.
If I was the OP I would use some strips of plastic or an aluminium can to make some inserts. I might have the shims in the wrong order as Stix pointed out but it would be apparent as soon as you mount the scope. Just pull them out and put them in the other side.
TassieTiger wrote:SCJ429 wrote:Burris Signiture rings are very strong and are well regarded. The plastic inserts cannot be deformed by the pressure of tightening the rings and they are very kind to your scope tube. I would have no hesitation in using them on any of my scopes.
If I was the OP I would use some strips of plastic or an aluminium can to make some inserts. I might have the shims in the wrong order as Stix pointed out but it would be apparent as soon as you mount the scope. Just pull them out and put them in the other side.
The plastic inserts are conical and ramped depending on elevation needed - I don’t see how the plastic inserts cannot be uniformly compressed to ensure exact concentricity, the signature rings have 6 tension screws per ring, so that's 12 points of potential different pressure - that can then fluctuate... As I said, smarter people than me have no doubt tested the crap out of those inserts, but to me, I’ll just fix a moa rail thanks.
grumpy308 wrote:Hi Paul. I'm not certain of the type of barrel fitment on a Savage 65 but have over the years have seen some pinned type barrels not all that straight and true to the receiver. Take the rings off the action and fit a metre rule into the dovetail slot and run it up to the muzzle. Check where it lines up in relation to the barrel. Do this on both sides of the dovetail to check if the barrel is in line with the action / dovetails. If that looks ok fit both lower ring halves to the dovetails and sit a piece of pipe / tube / broomhandle or similar into the rings and see if that lines up with the barrel. By doing both of these checks you should be able to work out what is causing the alignment issue. If all that looks good have a close look at the muzzle to make sure the bore appears to be in the centre of the barrel. If you can't find any fault it could be the scope. Try to centre the scope reticule by putting it in some V blocks (or securing your rifle in a vice and sitting the scope in the lower rings) and play with the windage and elevation adjustments until you can spin the scope around and the crosshair stays aimed at the same spot. This will make sure that your initial bore sighting will take place with a centred scope and get rid of the possibility of a sticky erector tube in you scope causing problems. By doing these checks it should become obvious what is causing the problem with being unable to sight it in properly. Regards Malcolm.
Paul wrote:Thanks Malcolm, I'll use those tips to check it out more thoroughly.
Regards, Paul