25yrd Zeroing target for .223 calibre ?

[Gerard]

Hi Guys,

To help out one of our members, I was hoping someone here may have created a zeroing target for .223 with 69grain projectiles.
Something similar to the 25yrd target that Ryan Neilsen and others have created for .308 with 155grain projectiles, that enables you to create some baseline settings for your sights from 300yrds to 900yrds.
That would enable us to record some settings for his scope for the ranges we shoot.

Our other .223 shooters are using 80grain projectiles, so not a perfect match but a pragmatic way of getting a ballpark target made up with some rough idea of Ballistics for .223 may be to ask them to shoot at 25yrds and cycle through all distances and use the resultant holes punched as a rough baseline. ... or, read up on this and do the maths! I guess.

But, first I wanted to ask here, does anyone have something like that?

cheers,
Gerard.

[Tim N]

My 6mm dasher's 25yd zero is close to the 300yd zero, I'd "GUESS" the 223 could be similar.
No guarantees

[Gerard]

Thanks Tim,
Im doing a little research on .223 ballistic drop with 69grain projectiles and will try come up with settings we can try starting with 300yrd for safety of course.
Was just hoping someone had a .223 target/chart already.

cheers,
G.

[Gerard]

Came up with this, does it look reasonably correct?
If so, it may be of use to someone else here.

Ballistic Drop Chart - .223 with 69gr projectile

Distance (Yrds) MOA increment
300 0 (This is our zero of course)
500 7 (Up 7 MOA from 300yrd Zero)
600 5 (Up 5 MOA from 500yrds - i.e. up 12 in total from Zero)
800 12.5 (Up another 12.5 MOA from 600yrds)
900 8 (Up another 8 MOA from 800yrds).

[Matt P]

I wouldn't waste your time shooting the 69's past about 600.
Matt

[scott/r]

And it would depend on what speed you have the 69 grners running at. They are very susceptible to elevation changes with speed differences.

[SuperV]

Where do you get those zero targets from.

[Gerard]

Hi Guys,

I don't yet shoot .223 myself and put the above together to help an older member of our club, who is the only one using 69s. For the most part he actually does pretty well with them. I was RO (first time) last week and had to halt his shoot due to his sighters being 'unspottable', and his elevation reference documentation having vanished, so in part I am motivated a little by guilt, but know it was the right call. That said, I don't want to have a repeat, so with the above info and a trip to the zero mound, we will all have a more enjoyable shoot next week.

Ben, I got the zero target from Ryan Neilsen's website. Some excellent docs available for download there http://www.sumosight.com/downloads/ His ring sizing doc has worked out very well for my eyes too.

cheers,
G.