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Barrel scope gap

Printed From: OpticsTalk by SWFA, Inc.
Category: Scopes
Forum Name: Rimfire / Airgun
Forum Description: Rimfire and airgun scopes
URL: http://www.opticstalk.com/forum_posts.asp?TID=43138
Printed Date: October/19/2017 at 06:05


Topic: Barrel scope gap
Posted By: luka7777778
Subject: Barrel scope gap
Date Posted: July/03/2016 at 04:42
I recently bought a pair of scope mounts and tried to mount my scope and the front of the scope sits on the barrel , the guy in the shop said that he can order higher mounts, but suggested I try putting some rubber between the scope tube and the mounts, because the scope should be as close to the barrel as possible for accuracy...should I wait for the new mounts, which are pretty higher, or just insert some rubber on the old ones and live with the ~0.7mm gap ?



Replies:
Posted By: bugsNbows
Date Posted: July/03/2016 at 11:24
What mounts and scope do you have now? I'd suggest just utilizing a taller ring rather than a rubber shim. BTW, welcome to the OT Forums.

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If we're not suppose to eat animals...how come they're made of meat?
               Anomymous


Posted By: dsr
Date Posted: July/03/2016 at 14:10
Originally posted by luka7777778 luka7777778 wrote:

... because the scope should be as close to the barrel as possible for accuracy...


There are many valid reasons to mount close to the barrel but accuracy is not one of them.


Posted By: koshkin
Date Posted: July/03/2016 at 16:00
The guy at the ship is an incompetent moron.

Do not listen to him and do not buy anything else from him.

Get higher rings from someone reputable.

ILya

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http://www.opticsthoughts.com - www.opticsthoughts.com
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Those who are merciful to the cruel, are cruel to the merciful.


Posted By: cheaptrick
Date Posted: July/03/2016 at 17:15
Originally posted by koshkin koshkin wrote:

The guy at the ship is an incompetent moron.


ILya

You mean...shop? Wink


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If at first you don't secede...try..try again.


Posted By: luka7777778
Date Posted: July/03/2016 at 17:37
This is my current setup with the rubber :D :


The rifle is a cz455 + BSA Optics - Stealth Tactical Range 4-16x44IR....probably not the most appropriate, but I had the scope for years and wasn't using it ...


Posted By: luka7777778
Date Posted: July/03/2016 at 17:41
I'm sorry about the huge picture, here's the link: http://i.imgur.com/5NpPkdb.jpg .... The rifle is a cz455 + BSA Optics - Stealth Tactical Range 4-16x44IR


Posted By: koshkin
Date Posted: July/03/2016 at 17:43
Originally posted by cheaptrick cheaptrick wrote:

Originally posted by koshkin koshkin wrote:

The guy at the ship is an incompetent moron.


ILya

You mean...shop? Wink

Bloody autocorrect...


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http://www.opticsthoughts.com - www.opticsthoughts.com
http://www.opticsthoughts.com - opticsthoughts.smugmug.com
Those who are merciful to the cruel, are cruel to the merciful.


Posted By: koshkin
Date Posted: July/03/2016 at 17:49
Luka,

Rubber spacers are just a bad idea.  CZ455 is a nice rifle and unless you are very lucky, you are not getting the most out of it the way it is set up.

If it is working well enough for your purposes, by all means leave it alone.

However, as a general consideration: you are creating all sorts of asymetric pressure on a scope that did not exactly start as a paragon of manufacturing consistency.  I have seen set-ups like this cause significant POI shift with magnification changes and a variety of other issues.  

There are some inserts that work well, but they are designed for that and are made out of not easily compressible materials.  They are also designed to reduce a diameter of the ring to use with a smaller diameter scope. 

Putting an insert into a 1" ring to set it up with a 1" scope is ALWAYS a bad idea.

ILya


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http://www.opticsthoughts.com - www.opticsthoughts.com
http://www.opticsthoughts.com - opticsthoughts.smugmug.com
Those who are merciful to the cruel, are cruel to the merciful.


Posted By: luka7777778
Date Posted: July/04/2016 at 16:02
I talked to the guy... And I'll exchange the mounts tomorrow for some higher ones... Thanks!!! :D


Posted By: Son of Ed
Date Posted: July/04/2016 at 19:53
Paige can work the counter with the same professionalism as the men at Gunsmoke.

Does the gun store dude look like this?   



Paige Wyatt in the Gunsmoke gun shop.....





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Visit the Ed Show


Posted By: Son of Ed
Date Posted: July/11/2016 at 17:39

" Eduardo's got a gap in his underwear..." 








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