22lr bullet drop

[easypeasy 4]

Cheers guys I did think it would be inches. I think he was trying to get me to buy a super scope costing more ££££.

[Colster 1]

Hi folks, Ive put in for a cz 22lr on my FAC, I am prob going to zero about 60 yards after ive found the rounds both me and my rifle like. Just a quick question, What would be the average drop if zeroed at 60yds at 100 yds. Thanks

Most folk seem to think that at 100yds the drop would be 4".

This sounds about right .

My ancient CZ is zeroed at 65 yds. Using Eley subsonics a 30 yd shot requires 1.5" hold under and at 90yds 3" hold over. I have a sticker on the stock to remind me !

 

 

I've found zeroing at 55yards means I don't need to hold under now for 30-40 yard bunnies, might be worth a try.

[padgeman 0]

I use Win Super X subsonics and zeroed the scope at 55 yards - this gives me from 15 to 63 yards aiming dead on (for a 1.5" killzone)and the SR6 recticule then gives me aim points for 70, 85 and 100 yards. I would recommend Chairgun Pro; it works really well if you know the mv and ballistic coefficient of your ammunition

[dadioles 68]

I use Win Super X subsonics and zeroed the scope at 55 yards - this gives me from 15 to 63 yards aiming dead on (for a 1.5" killzone)and the SR6 recticule then gives me aim points for 70, 85 and 100 yards. I would recommend Chairgun Pro; it works really well if you know the mv and ballistic coefficient of your ammunition

I agree with you (padgeman) that Chairgun Pro is an excellent piece of software. It does have to be used with caution though because theoretical values and real world shooting don't always see eye to eye and you will almost certainly have to "tweak" some of the settings in Chairgun to the "wrong" values in order to get the "right" result based on actual shooting.

 

At the very least, having zeroed at 55 yards you need to shoot a group at 100 yards and measure the drop then compare that with Chairgun, the chances are it will be significantly out. Better still measure the drop every 10 yards from 30 to 120 yards and have a really accurate trajectory plot and use either holdover or scope clicks. I have switched recently from holdover to scope clicks as I find it easier and very accurate indeed, now within half inch of my aim point at every distance out to 120 yards (which I have set as my limit for headshots on rabbits with the 22LR). One problem I find with long range subsonic shots is that the rabbits hear the sound and have time to move before the bullet gets to them! Not often, but it does take nearly half a second to travel 150 yards and that is an age. With HMR the rabbit is dead before it hears the shot.

 

Personally I think a 1.5" kill zone is too big as there is no room for error. You are probably grouping no better than 1" most of the time so could easily miss by half inch or more. A kill zone of no more than, say, 0.8" in Chairgun will tighten things up a bit and you will still be shooting "flat" from about 15 to 55 yards although may have to bring your zero down to 50 yards instead of 55 to avoid the need for holdunder at 35 yards. Just allow about half inch of holdover at 60 yards and then whatever is good for you after that.

[andyf 144]

Hi folks, Ive put in for a cz 22lr on my FAC, I am prob going to zero about 60 yards after ive found the rounds both me and my rifle like. Just a quick question, What would be the average drop if zeroed at 60yds at 100 yds. Thanks

Well you haven't said what ammo your intending to use? But if it's High Velocity a 60 yard zero will require only a tiny bit of holdover for 100, (realworld about half

way from the 'cross' to the thicker part of the vertical stadia. But if it's Subsonic you'll need to go all the way to the top of the 'thick' bit.

All the above assumes you will have a duplex reticule, but airgun/rimfire scopes these days are available in all the varieties, so maybe get a mildot or a varmint ladder

type then check out for yourself by zeroing then moving back to 100 and determining which mildot or ladder point does the job.

Also my experience is that (crudely) if you zero at 50 yards with subsonic, at 100 HV will be just about 'on the money', so you can go about your business with Subs, and if a

long range shot appears, swap mags for an HV and your ready to go! AF