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#1
01-28-2008, 06:47 AM
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Brithunter, do you have any means of measuring runout on a fired case?
A runout gauge would be ideal, but sometimes you can see significant amounts of runout- if they exist- by slowly rolling a fired case across a mirror. Watch the case neck- if you see it wobble with the naked eye as you roll it across a mirror, you've got significant runout. I'm certain you know what I'm talking about, but for those who might not... runout of a fired case measures the (lack of) concentricity between the chamber and the bore. If the chamber is significantly out of line with the bore, well...you're screwed. You'll never get it to shoot really well. Brithunter, nothing you've mentioned in any post really leads me to think you have a problem with chamber/bore runout, except... it's one of the few conditions you can run across in a used rifle that you cannot remedy short of rechambering or rebarreling. And you've already done all the other things that usually cure rifles with accuracy problems.
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“May we never confuse honest dissent with disloyal subversion.” Dwight D. Eisenhower "If the freedom of speech is taken away, then dumb and silent we may be led, like sheep to the slaughter" George Washington Jack@huntchat.com 
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#2
12-12-2011, 09:51 PM
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Hmmm this thread is old but I ended up selling the scope for a small loss to someone who wanted it for a recoiless airgun and it seems it works fine on that. I tried a couple of scopes on the rifle but just could not chase down th fine grouping it should be capable of.
Well if I ever get the guns and licence back after this hassle we will take it to a accuracy gunsmith and let him have a look over it and bore scope it as well then decide what is to be done. Currently the rifle has a Falcon Menace 7.5x50 CSS scope with mildot reticle. Wanted to try a mil dot out so piked this scope up to give it a whirl.  Scope is kind large. Hopefully we will get back to working with it but when  Oh yes we don't seem to have any neck run out as such the trouble is that this saga has been going on so long I have lost track of how it was shooting at the end. I know we sort of cured the stringing and were getting more rounded groups but they were still larger than i would like. Of course a better shot than I might help matters.
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"Don't let the bastards grind you down"
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