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#4811987 - 01/12/11 11:21 AM Is paralax adjustment required for rimfire use?
strosfann Online   content
Campfire Regular

Registered: 01/03/11
Posts: 433
Loc: Tomball, TX
I recently picked up a mint Remington 504 in 22 lr and need to scope it. I'm torn between finding a rimfire specific variable with the paralax set @ 50-75 yds, going with a high magnification AO scope or just using a standard 2-7 or 3-9. The Rimfire Central crowd would lead you to believe you need an AO scope that tops out at 15-20x in order to shoot well. I'm leaning towards getting a smallish standard scope (Vortex Viper 2-7x32 or Minx ZA3 3-9x40). I really don't want an oversized scope on this beautiful rifle and I don't want to overpay for a rimfire scope when I can get a high quality standard scope for less $.

This gun is meant to be used as a trainer for punching paper and small game hunting in order to save $ over shooting my centerfires. As long as the scope is mounted as low as possible and I am positioned correctly I'd assume the full value of the paralax error formula wouldn't apply would it? Isn't that a maximum value for use if you are way off center in the scope?

Too many questions, I need some answers.

Thanks in advance - Strosfann

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#4812123 - 01/12/11 11:59 AM Re: Is paralax adjustment required for rimfire use? [Re: strosfann]
Eremicus Offline
Campfire Kahuna

Registered: 03/01/01
Posts: 18881
Loc: Placerville,CA,USA
Rimfire scopes usually feature finer reticles and have their parallax set for something like 60 yds. This parallax setting allows you to shoot smaller groups at the shorter, 25-75 yd. ranges
Some companies, like Leupold, will reset their standard big game scopes for a shorter ranges which would allow you to use any of them for that.
There are also some excellent, smaller AO scopes which allow you to set the parallax for any range. Say for the guy that shoots his rimfire at 50, 100 and even 200 rds.
There isn't much difference in parallax for most scopes between say 150 yds. and 300 yds. But there is often alot of parallax at 50 yds. when one uses a scope set to be parallax free at 150 yds. There can even be a significantr amount at 25 yds. with one set at 50 yds.
I've never had much luck trying to keep my head centered in the scope to reduce the error induced by parallax. E

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#4812134 - 01/12/11 12:03 PM Re: Is paralax adjustment required for rimfire use? [Re: Eremicus]
avagadro Offline
Campfire 'Bwana

Registered: 08/01/02
Posts: 10451
Loc: Tri-Cities, Washington State
Sold right here on the campfire .... enjoy!

VX-II 3-9x33AO (or is that 3x9-33 smile )

https://www.24hourcampfire.com/catalog/p...c2a2f2b843eac4c
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Associate Gypsy
Order of Sleepless Knights

Originally Posted By: GOD
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#4812161 - 01/12/11 12:11 PM Re: Is paralax adjustment required for rimfire use? [Re: strosfann]
Poodleshooter Offline
Campfire Regular

Registered: 12/09/10
Posts: 527
You're correct that full value parallax won't apply unless your eye is at the far extent of the viewing field of the scope.
However in a hunting scope where shots may be made from odd angles, parallax error can add 1/8-1/4" or so to your groups.
Example: 32mm objective, with a fixed 50yd rimfire parallax adjustment.
at 10yds, you have a max parallax error of 12.8mm (very close to .5")
At 25yds OR 75yds, you have a max parallax error of 8mm (.315")
At 100yds, your max parallax error is 16mm or .646"

Cut those values in half for a realistic "shot around a tree while sitting" shot, and you can evaluate whether or not that works for you.

FWIW, I shoot with a 4x Tasco fixed 50yd parallax scope (an old Tasco with good glass), and a Clearidge 3-9x32mmAO on my .22s. Both are fine scopes.

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#4812265 - 01/12/11 12:39 PM Re: Is paralax adjustment required for rimfire use? [Re: Poodleshooter]
roundoak Offline
Campfire Tracker

Registered: 12/25/09
Posts: 5226
Loc: Badger State
For several years I had a Bushnell Rangemaster Rimfire Series 4X32mm parallax free 50yds on a Ruger 77/22 and it served me well, but it failed a couple of years ago. Now have a Bushnell Banner 17 Super 3.5-10 x 36mm AO. I like to shoot a lot of paper with the rifle and I could see a positive improvement in groups at 100 yards. For small game I turn it down to 40 yds and that = squirrel pie.
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#4812518 - 01/12/11 01:58 PM Re: Is paralax adjustment required for rimfire use? [Re: strosfann]
1minute Offline
Campfire Kahuna

Registered: 01/28/01
Posts: 15448
Loc: Burns/Hines, Oregon, USA
If one wants to maximize his rifle's potential at a variety of ranges, adjustment is definitely beneficial. Especially for higher magnification scopes working in the near range environment. I do a couple of cases worth of Beldings ground squirrels each spring ranging from 5 to 140 or 150 yds. When youngsters initially emerge, they can be less than an inch wide when standing up. Given less than bench quality rests in the field, I need every advantage I can get so that my favorite rancher will keep buying ammo for me.

For those baby squirrels, I absolutely need at least a 10X scope. It's the difference between simply aiming at a squirrel's body, and trying for dead right there head shots.

Is it required? Absolutely not. But damned well worth it for my uses.


Edited by 1minute (01/12/11 09:10 PM)
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#4812619 - 01/12/11 02:21 PM Re: Is paralax adjustment required for rimfire use? [Re: 1minute]
strosfann Online   content
Campfire Regular

Registered: 01/03/11
Posts: 433
Loc: Tomball, TX
I've done a lot of research and unless there's a few I'm missing it doesn't seem like there is much out there of good value in AO scopes of 40mm or less that aren't overly long for a 20" barreled 22. The VX-II 3-9x33AO seems lik the closest option but in my opinion Leupold is priced about 40% above value across the board so I'm hesitant to spend the $ they want. I may go back and revisit the Weaver/Nitrex line although from what I recall they are some heavyweights.

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#4813151 - 01/12/11 05:08 PM Re: Is paralax adjustment required for rimfire use? [Re: strosfann]
Ella Offline
Campfire Regular

Registered: 09/03/07
Posts: 702
Strosfan,
I can tell you that Vortex can not reset the parlx on their 2-7 Viper to rimfire yardage. I had the same idea as you. I'm still using a 2-7 viper on my .22. Wouldn't mind a little more top end mag sometimes at the range. If Poodleshtr knows right, I can deal w. a half inch of field error.

Ella

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#4813437 - 01/12/11 06:16 PM Re: Is paralax adjustment required for rimfire use? [Re: strosfann]
avagadro Offline
Campfire 'Bwana

Registered: 08/01/02
Posts: 10451
Loc: Tri-Cities, Washington State
Originally Posted By: strosfann
I've done a lot of research ... but in my opinion Leupold is priced about 40% above value across the board so I'm hesitant to spend the $ they want. ...


I guessing you haven't done the research you think you have. Other than the Simmons 22Mag series (which don't count) who else makes a good small RF sized low-ish magnification AO scope?? Therefore, do understand how Leupold can be 40% overpriced when their the only game in town? Just outta curiosity where does the 40% figure come from?

Its not that I'm a Leupold fanatic ... I just don't understand the basis for your statements. You have a nice rifle ... don't you want nice optics???
_________________________
George
Associate Gypsy
Order of Sleepless Knights

Originally Posted By: GOD
... That is when I carried you ...

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#4813569 - 01/12/11 06:52 PM Re: Is paralax adjustment required for rimfire use? [Re: avagadro]
Etoh Offline
Member

Registered: 12/07/10
Posts: 181
Another thought, will you be dialing in elevation for drop at the longer ranges or using holdover. If using holdover, it will be a parallax problem

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