shoot2eat wrote:Looking for some advice on scope magnification for my .22LR
I currently have a Leupold 3-9 x 40 on my .22Lr. I use it for plinking 3" & 4" steel targets at 150m without a problem.
I would like to set up paper targets between 50m out to 150m, but I feel like I am lacking in magnification to make accurate shots at smaller targets. Also parallax is very noticeable at 150m with my fixed parallax rimfire scope ( I believe is set at 60m)
Just wondering what magnification range people would recommend for paper targets at these distances. I don't shoot competition, just mucking around in the back yard. However I would still like to be able to see and hit bullseye at 150m.
I use 4.5-18x40 scopes on all my rifles. I've used them on the .22's to hit large targets out to 460m on 4.5-power without too much trouble - wind is a _major_ issue past about 350m with the .22LR. I've found that I really only need enough magnification to allow me to clearly make out the target - as long as I can see it, I can generally hit it, eventually. I also have some 40-power scopes, and they're great too, but I don't find them necessary. That magnification is excellent to allow you to aim precisely at the intersection of two fine lines on a sheet of paper, but I can only see such lines out to perhaps 120m tops, on a very good day. For shooting very small groups at relatively close ranges (200m max say) then more magnification is very good. Further than that though and the air itself is too "dirty" to see such fine targets, regardless of how much magnification you have. For me, at longer distances I need a target that I can at least see, even if I can't see it well. I generally only need about 4-power to make such a target clear enough to be able to hold a sight picture on it. There is also the issue that the higher your magnification the smaller your field of view, and the less travel you have on the elevation turret, rarely are these an issue with any high-velocity rifle, but definitely are with the .22 at longer distances. If you have miss-estimated the range by ten or twenty meters at 400m, the bullet might land several meters above or below your aiming point, but even worse, if you have heavy wind your bullets might be landing three or four meters to one side as well - it helps to wind the zoom back while you get onto the target in such conditions. Likewise, if you have limited elevation adjustment you're going to be holding over rather than dialling onto the target. If you need to hold eight or ten meters above your point of aim you will need a very wide field of view, and decent holdover or gridded reticle.
To enjoy shooting paper out to 150m I doubt you will have any issues with your 3-9x40, though 9-power will struggle to make out .22-caliber holes in paper at 150m (at least for me), you might want a spotting scope. I would try larger aiming marks that you can see clearly in your scope, a cross or diamond of 16mm insulation tape on paper for example. I prefer a diamond aiming mark as I can aim precisely at one of the corners. If you're already shooting 3" gongs at 150m I don't think your scope is lacking too much. STS do a Know-Your-Limits (KYL) gong rack that can be fun. It has seven gongs from 70mm down to 10mm. I like it because it offers very varied challenges depending on the distance and how you shoot. I sort of think of the middle one (30mm) as the median, so whatever and however you are shooting, set it up at a distance at which you shouldn't have any difficulty hitting the middle 30mm gong. Then you can enjoy hitting the larger ones more rapidly, and hitting the smaller ones with greater challenge. We've been practicing on it lately offhand with open sights at 12m with the .22's.
Parallax can be mostly circumvented by a very consistent cheek weld on the comb. Parallax is an issue of your eye being in different positions behind the scope, a good consistent cheek weld will minimise any movement. But a scope in the range of 4-power at the bottom to about 20- or 24-power should be sufficient. With side-focus parallax adjustment - don't get anything with AO or adjustable objective, they're very hard to use from a firing position and you can't read the markings on them from behind the rifle either. I don't bother with the markings, I just adjust parallax until the target is as clearly focussed as possible and you'll be only a few meters out.
If you want to start shooting longer distances you'll want to decide whether you prefer to work in millirads or minutes and get a scope to suit.