Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Hunting
Long Range Hunting & Shooting
Huge poi shift and bore sight oddity
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Frog4aday" data-source="post: 1817190" data-attributes="member: 9308"><p>Maybe I missed it, but did someone suggest ensuring the barrel channel is well and clear of the barrel the full length? And I'm not talking the old "ran a $1 bill down and it was good to go" kind of gap. I'm thinking at least a full millimeter or more gap at the narrowest spot. It is a 338 (win mag?) Any contact between barrel and stock as the bullet makes its way down and out (like a snake swallowing an egg while whipping up and down slightly) will drastically change POI.</p><p></p><p>If it isn't that (a 'free-float' issue) my next thought is you have a barrel that has a slight curve to it. If the curve pointed up or down, you'd get dramatic vertical changes. But if the curve goes slightly left (or right) you would get dramatic horizontal POI changes as you indicate. And what a 'mess' that is. A good gunsmith should be able to check it for concentricity/runout and let you know.</p></blockquote><p></p>
[QUOTE="Frog4aday, post: 1817190, member: 9308"] Maybe I missed it, but did someone suggest ensuring the barrel channel is well and clear of the barrel the full length? And I'm not talking the old "ran a $1 bill down and it was good to go" kind of gap. I'm thinking at least a full millimeter or more gap at the narrowest spot. It is a 338 (win mag?) Any contact between barrel and stock as the bullet makes its way down and out (like a snake swallowing an egg while whipping up and down slightly) will drastically change POI. If it isn't that (a 'free-float' issue) my next thought is you have a barrel that has a slight curve to it. If the curve pointed up or down, you'd get dramatic vertical changes. But if the curve goes slightly left (or right) you would get dramatic horizontal POI changes as you indicate. And what a 'mess' that is. A good gunsmith should be able to check it for concentricity/runout and let you know. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
Huge poi shift and bore sight oddity
Top