I am fairly new to this forum so please go easy if I have posted into the wrong thread.
I have several rifles all in .177, some pcp and some springers. I have noticed that with several of my scopes the following problems.
1, Grouping moves and becomes poor upon changing magnification. So if I set up a rifle in a fixed position, zero the scope at a set magnification (say 6x). Then move the magnification up to say 9x, the centre has moved and when rifle adjusted to put cross hair onto original poa, zero is off.
2, Setting eye relief on a couple of nikko stirling produces a very unstable reticle. This appears to be because the eye piece/lens physically moves as it appears to become loose.
Is there such a thing as an affordable (sub £100) but reliable scope that will last more than six months and is ok on a springer such as the LGU.
Many thanks for any help on this,