JagMagMan

I am in the market for a new scope. It WILL be either a Leupold or Nikon Monarch. I have never used an Adjustable Objective before! What exactly does an AO do, and is it worth any extra $$$ in and of itself? Thanks!

BrutalAttack

It allows for the adjustment ofparallax so that the target is always perfectly in focus. I've never had a scope with parallax adjustment so I don't know how critical it is for hunting purposes. My feeling is it's probably not real critical for normal hunting distances and applications.

I did shoot my buddies rifle that had an adjustable objective. I wasn't that impressed, it's just one more knob to fiddle with when you probably have more important things to worry about when lining up a shot.

Soilarch

I have one on my 22-250. Honestly, I can tell a difference but only mess with it when I'm bored. I've never drawn on a yote or target and thought "dang, I'm out of parralax!" I could set it at 100yards and forget about it. You can tell a difference when you adjust it, but I've got a shotgun scope w/o AO and I've never missed it there. (I've shot 20-120yards)

Sooooo...all that to say this: It's not needed, but its a nice little feature. Only you can decide if its worth the extra $$$ and slightly more weight if you're one of those who concern yourself with how many ounces your gun weigh.

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Here is an article that will explain all about it if you’re interested... www.snipercountry.com/Articles/Parallax.asp

JagMagMan

Thanks guys! I thought the AO had to do with paralax, but I wasn't sure. If I remember right, scopes without AO are set for 100 Yds. I am also assuming (I know what happens when you "assume") that since most scopes DO NOT have AO, it is not REALLY a critical feature for a hunting scope at most hunting ranges.
I don't know, but it sounds like something else to screw up!!!???
I guess I'll just have to weigh the benifits vs. the liabilities! Whats your thoughts?

stubblejumper

Generally scopes without adjustable objectives have the parallex set for 100 yards or 150 yards.I see no use for an adjustable objective for big game hunting,but I do use them for target and varmint shooting.

James B

I have several scopes with the AO. I don't use it much for general big game hunting and usually leave them sey at 150 yards. As Stubble said, for long range varmit shooting it can be pretty handy,

Dan in Alaska

Many of the high powered scopes come with AO. I have an AO on my Burris 6-18x, and I set it whatever distance I am shooting, when I am at the range. When I am hunting, I set it to 150 yards and leave it alone.

An AO comes in REALLY handy on a rimfire. Some models you can set for distances as close as 10 yards. A local indoor range only goes as far as 25 yards, so being able to focus the scope at such a clost range is a very nice feature. There are a few folks that shoot their centerfire rifles, with cast bullets at reduces velocities, in the indoor range. Many of them use a scope with an AO.

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Ditto...

Champlain Islander

I have it on a Zeiss and use it to fine tune to my eyes and then don't touch it. For my type of shooting it isn't something I use. I do wear glasses and find that the center mark on the scale brings the picture in sharp so it really doesn't benefit me.