adjustable bjective crucial to accuracy at 400+ yds?

[YoteSmoker]

I have a 25-06 that is very accurate shooting 115 bt's. Currently, it is sighted in with a 4-12x vortex diamondback scope with "dead on hold" reticle but has no a.o. My goal with this rifle is to shoot coyotes at 400-500 if presented the oppurtunity. I have been debating if I should take the 4.5-14x burris off my 7 mag and put on the 25-06. It has a calibrated reticle for the 115 bt load as well as a.o.

Both rifles are sighted in. The 7 mag won't see any action untill next fall. Should I make the swap or leave well enough alone? Is parrallax at 4-500 going to be a factor on a coyote hit or miss?

Purchase of a new scope is not really an option right now. Please advise and thanks!

 

[Ridgerunner665]

Depends on how consistent your cheek weld, grip, and hold on the rifle are?

If your eye is positioned behind the scope the exact same way every time...the AO won't help you much...except maybe for a slightly clearer picture...maybe, slightly.

Parallax adjustment is nice to have...but not absolutely necessary if you work around it properly.

Is parallax enough to cause a miss at 400-500 yards...probably not a clean miss, but its definitely enough to cause a bad hit.

I prefer my scopes to have parallax adjustment...you don't have to use it for every shot, but its nice to have when you need to take a long poke.

Sent from my DROID RAZR HD using Tapatalk

 

[Guy Miner]

Try it a bit on targets at 400 - 600 yards and see how that works out for you. Some shooters find that the non-adjustable scopes do rather well for them at those ranges...

I've popped deer & coyotes at 400 - 450 yards a few times, with a fixed 6x Leupold and my .25-06 rifle... No problem.

Guy

 

[Wondermutt]

I think the AO is a joke, or it was for me. I spent more time peeking over the tip of the scope to make sure it was adjusted correctly.

I use a fixed parallax scope to hit hit yotes to 400 yards with no problem.

I say, if your rifle/scope combo is hitting on all cylinders and you are comfortable with it, use it.

I got real lucky, and I mean lucky when i popped a yote at 380 yards with a stock -06 and a 3x9 redfield that looked like you were viewing the target out of a fogged up scuba mask... With the AO scope on it, it stayed focused on infinity and still hit targets to 300 yards with repeatable consistency.

 

[Guy Miner]

Yup.

 

[dubyam]

Parallax is a funny little demon, and everything above is true. Also true is that magnification exacerbates the problem, and so you see parallax adjustments on higher magnification scopes to correct for it. The reality is, all scopes exhibit parallax at all but one distance, in any given moment. It's the observed and real degrees of severity that make the difference.