Long distance 22 ammo

Maple57's trick for ensuring that your eye is centered in the scope is bang on to help eliminate potential parallax issues. I shoot single shot ( 1800's to early 1900's ) target rifles in competition. We mostly use relatively low power 6x-8x scopes. Often we will set the parallax for say 400m and shoot at 200m-500m. The trick that Maple57 mentioned is used to keep parallax problems at bay.

With respect to temperature, it will most definitely change things once you are shooting a little further out. I don't think you have to worry too much about the transonic zone as much with these types of projectiles, at least not to the extent that you do with modern boat tail designs. I shoot black powder target rifles to 1000 yards and our projectiles are not too different than .22LR bullets, just scaled way up so much better B.C. We are transonic pretty much from 200-300 yards out to 1000 and it's no problem as long as you have the twist rate matched to the bullet.

Chris.
 
dryfire said:
No , that's why manufacturers advise to set the parallax against a plain background(cloudless sky or a nondescript backboard) Ideally , if adjusted properly they should be parallax free at any distance. Yes , some scopes are factory adjusted to be parallax free at a given distance but the oculars are still adjustable for the individual user. The adjustable objective or more recently the adjustable focus with the third turret adjusts the image focus for distance .

Think of the measurement discrepencies that might occur if an engineer's level or theodolite had to be parallax adjusted for every distance that was measured. Once parallax is adjusted ,it's done.
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I don't want to start an argument here, but this is not correct, and such confusion is why I brought parallax into this discussion.

You are confusing parallax with reticle focus. They are two completely different things.

If I could put fourth a parallax analogy...

A scope is like an iron sight rifle with only a front sight... You can aim the rifle as long as you mount the exact same way every time. If you unwittingly mount with your head in a slightly different position, the bullet will not strike where you are aiming.

Setting the parallax correctly is like putting the rear sight on. That rear sight ensures that you are looking through the sight from the same position each time.

Now you have a consistent aiming system.

The problem with a scope is that it does not optically actually work like iron sights. There are only 2 things to align in a scope instead of 3 with iron sights.

In reality the parallax adjustment moves "visual planes".

One plane is the reticle and the other is the target image. The parallax adjustment moves the target image plane in and out until it is coincident with the reticle visual plane.

A different target distance requires the image to again be moved to the reticle visual plane.

So in summation, it is impossible for the reticle to exist in all possible target visual planes, that's why target scopes have adjustable parallax.
 
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Mystic Precision said:
Everyone I know is running a subsonic match ammo.

If the ammo likes your rifle, it has not issue shooting well at 300yds. The Action Rimfire match had targets at 315yds.

If you want to run Eley Force, test at 300yds and see if it holds together.

Rimfire ammo is going to drop hard...just have a scope with plenty of elevation.

With a short throat, you may find Lapua CenterX or midas+ more to its liking.

Jerry
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Jerry your right for 200 y Midas + is best I have found
 
I know this sounds rediculous but my 16 inch cz will not hit at 300 yards consistently. At 50 to 200 it is great, has less drop at distance than my 20 inch tikka but for some reason when I use the eley club ammo from 250 on it becomes incredibly inconsistent. Going to try cci sv next time out as it also shoots great in close, not sure what’s going on. Just curious if it is the ammo. Would love to give some lapu a try also just a pain to get around orillia, might have to night the bullet and get some so match and lapu from Jerry
 
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