AO

chipchip · October 8, 2013, 06:22 PM

At what power is an AO necessary on a scope.

burrhead · October 8, 2013, 10:05 PM

Some would say that an AO is not so much necessary as nice to have, depending on what you're shooting. If you're popping prairie dogs in the next county or shooting targets at long range with a high power scope, it's really nice to be able to correct for parallax. If you're hunting large game (deer, elk, hogs) I don't think there's a need. What are you shooting?

chipchip · October 8, 2013, 10:19 PM

coyotes and 300yrd seem to be my practical limit

burrhead · October 8, 2013, 10:29 PM

Coyotes where I live run about 35lbs for a big one. 300yds is a reasonable distance and, since you're not worrying about ruined meat, uber-precision isn't necessary. I don't really know but I can't imagine corrected parallax is going to change POI a half inch. For what you plan on doing I wouldn't worry about an AO. But that's just me.

Good luck on your hunting.

chipchip · October 8, 2013, 11:34 PM

I was looking at a 3.5X10x40 duplex. Like things simple.

Magnum Wheel Man · October 9, 2013, 06:09 AM

if you look at the scale on the adjustable objective, you'll see larger movement at the closer distances, & less at distance... so... IMO, it's more important at closer distances, than at further distances

wogpotter · October 9, 2013, 06:59 AM

Based on my experiences with a 3~9X40 without one I'd say its a combination of power & distance. If I use this on a .22 at 100, 50, & 25 Yds then I can't go over 6X without noticeable loss of clarity & visible parallax issues.

The differences become minimal at ranges beyond 100 yds IMO as I've never found a problem that far out with non adjustable scopes.

bamaranger · October 10, 2013, 12:40 AM

I've got a Bushnell fixed 10x, that is useless under about 50 yards, for any sort of precision work anyhow.

But what I'm thinking is that it's not so much just the amount of magnification involved, but the distance too. Up close, you cannot focus well to see target. Farther out, you get into accuracy issues with cheek weld and floating cross hairs.

October 8, 2013, 06:22 PM	#1
chipchip Senior Member Join Date: December 21, 2005 Posts: 247	AO At what power is an AO necessary on a scope.

October 8, 2013, 10:05 PM	#2
burrhead Senior Member Join Date: July 6, 1999 Location: Chihuahuan desert, Texas Posts: 1,148	Some would say that an AO is not so much necessary as nice to have, depending on what you're shooting. If you're popping prairie dogs in the next county or shooting targets at long range with a high power scope, it's really nice to be able to correct for parallax. If you're hunting large game (deer, elk, hogs) I don't think there's a need. What are you shooting? __________________ Join the GOA, SAF and the TSRA I'm offended by people that are easily offended.

October 8, 2013, 10:29 PM	#4
burrhead Senior Member Join Date: July 6, 1999 Location: Chihuahuan desert, Texas Posts: 1,148	Coyotes where I live run about 35lbs for a big one. 300yds is a reasonable distance and, since you're not worrying about ruined meat, uber-precision isn't necessary. I don't really know but I can't imagine corrected parallax is going to change POI a half inch. For what you plan on doing I wouldn't worry about an AO. But that's just me. Good luck on your hunting. __________________ Join the GOA, SAF and the TSRA I'm offended by people that are easily offended. Last edited by burrhead; October 8, 2013 at 10:37 PM.

October 9, 2013, 06:09 AM	#6
Magnum Wheel Man Senior Member Join Date: July 26, 2006 Location: Southern Minnesota Posts: 9,333	if you look at the scale on the adjustable objective, you'll see larger movement at the closer distances, & less at distance... so... IMO, it's more important at closer distances, than at further distances __________________ In life you either make dust or eat dust...

October 9, 2013, 06:59 AM	#7
wogpotter Senior Member Join Date: September 27, 2004 Posts: 4,811	Based on my experiences with a 3~9X40 without one I'd say its a combination of power & distance. If I use this on a .22 at 100, 50, & 25 Yds then I can't go over 6X without noticeable loss of clarity & visible parallax issues. The differences become minimal at ranges beyond 100 yds IMO as I've never found a problem that far out with non adjustable scopes. __________________ Allan Quatermain: “Automatic rifles. Who in God's name has automatic rifles”? Elderly Hunter: “That's dashed unsporting. Probably Belgium.”

October 8, 2013, 10:19 PM	#3
chipchip Senior Member Join Date: December 21, 2005 Posts: 247	coyotes and 300yrd seem to be my practical limit

October 8, 2013, 11:34 PM	#5
chipchip Senior Member Join Date: December 21, 2005 Posts: 247	I was looking at a 3.5X10x40 duplex. Like things simple.

October 10, 2013, 12:40 AM	#8
bamaranger Senior Member Join Date: October 9, 2009 Location: North Alabama Posts: 8,303	Ya know I've got a Bushnell fixed 10x, that is useless under about 50 yards, for any sort of precision work anyhow. But what I'm thinking is that it's not so much just the amount of magnification involved, but the distance too. Up close, you cannot focus well to see target. Farther out, you get into accuracy issues with cheek weld and floating cross hairs.