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AR15.COM
6/5/2008 10:23:01 AM EDT
OK next stupid question, is there an easy way to obtain multiple zero's other than shooting at those distances and doing the hard work.

I'm pretty much spot on at 100 yards, just looking at getting on the paper at say 200, 300, 400 and 500 yards.

Scope is Leupold Mark 4.

Any help gratefully appreciated.
6/5/2008 10:27:49 AM EDT
[#1]
No,
Everything will be an approximate.

You would have to know bullet type, velocity, ballistic co-efficient, scope height over bore, temp, barometric pressure and more.

On the other hand, if you want to be "near enough" with RG 5.56 etc, that's fairly easy
6/5/2008 10:38:43 AM EDT
[#2]
Near enough would be a good start and then I could improve from there.
6/5/2008 12:50:25 PM EDT
[#3]

Quoted:
Near enough would be a good start and then I could improve from there.



100-200 1 min
200-300 2 min
300-400 3 min
400-500 4 min
500-600 5 min

These are metres and based off the come ups on an A2 rear sight.
They will be close enough

Mark
6/5/2008 2:22:17 PM EDT
[#4]
Bullet weight?  Charge?  Range.....?

I could give you all my data, but as Mark says it depends on so many variables...  

If you want you "copy" a load, then assuming we are on the same plane (barrel / twist etc) then you should get on paper...

Dave
6/5/2008 2:28:10 PM EDT
[#5]

Quoted:
Bullet weight?  Charge?


Radway 5.56
6/5/2008 4:44:12 PM EDT
[#6]

Quoted:

Quoted:
Bullet weight?  Charge?


Radway 5.56


Better still...go find a range where you can shoot at the ranges you need and find out how your load performs. It really is worth the time and gives you confidence in your shooting when you know how your rifle and load is going to perfom. All the best shooters will tell you that.

Anything else really is guesswork at best.

Where do you live?   Do you have a range locally with the distances you need?
6/5/2008 11:37:53 PM EDT
[#7]
I live in Cheshire, nearest range with all the distances would be either Sealand or possibly Diggle, only problem is that as far as I am aware I cannot just turn up and try to get zero at various ranges, unless you know something I don't.

My other option is to have a day out at Bisley and use their facilities.
6/5/2008 11:48:07 PM EDT
[#8]

Quoted:

My other option is to have a day out at Bisley and use their facilities.


Only if you're an NRA member or your club is affiliated, in which case the booking must be made through your club secretary
6/5/2008 11:55:29 PM EDT
[#9]
Thanks, what are the facilities like down there now, haven't been in almost 20 years now.
6/6/2008 12:06:10 AM EDT
[#10]

Quoted:
Thanks, what are the facilities like down there now, haven't been in almost 20 years now.


They haven't changed a bit then......
6/6/2008 1:32:40 PM EDT
[#11]

Quoted:

Quoted:
Thanks, what are the facilities like down there now, haven't been in almost 20 years now.


They haven't changed a bit then......


We were staying in the MLAGB Exhibition hut over the Phoenix, and that place has barely changed in 100 years...
6/6/2008 3:30:03 PM EDT
[#12]
You might find that it's a better idea to get your starting zero at 200yds rather than 100. The reason being that at 100, the curve of the trajectory that intersects with your sight line is relatively flat ie: although you may be hitting the target where you're aiming, you could infact be zero'd for only 65yds or even 110! This has a huge knock on effect if you're trying to extrapolate your settings for other distances:

http://i30.photobucket.com/albums/c343/UKMuppet/GRAPH.jpg

If you zero at 200yds there is no doubt about where you are set:

http://i30.photobucket.com/albums/c343/UKMuppet/GRAPH2.jpg

I hope this is of some help.