Re: How to deal with this action stress issue
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Thomas Manners</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: hill billy</div><div class="ubbcode-body">I recently bought a gun here on the Hide, a Surgeon action in a Manners T5 with a Manners chassis. I have had it a week or so and pulled the barreled action out tonight. I started by loosening the front action screw and the barrel and front of the action moved about 3/8" or more as I loosened the screw.
In an ordinary situation I would think this could be fixed with proper bedding, but since it has the chassis, what direction should I take this? I have only shot it once so far and am load testing but have only managed about 1 MOA out to 600.
Thoughts? </div></div>That is the way it should have moved. If you look at the chassis there is only 5 contact points. The back of the lug, about 1" each side of the action from behind the lug, and about a 1/2" each side of the trigger. You can actually take a piece of paper and slide under the back tang and touch the rear screw when it is bolt together. This is because we use a v block design instead of curved bed block. The V block design actually pulls and centers the action in the block. The very bottom of the action will actually float. The main reason for this design is so that it will work with many different actions, some action are 1.35 dia some are maybe 1.36 they are never the same from different makers. Even actions of the same maker are never dead nuts the same, take a look at a half dozen remingtons.
My background has always been benchrest. Do I think that the chassis will shoot better than a true stress free bedded action, No. But I feel that it will very close. When we designed the chassis we did a lot of testing with proven bench guns. We found very little loose of accuracy from taking a true bench gun out of a bedded stock and placing it into a stock with a chassis.
There are so many variables at long range shooting. If it where me I would spend just a little more time on load testing before bedding the chassis. It is like the AI chassis, some guys feel you must bed them and some thing that it does not make a difference.
I am out of the shop in LA till Monday. Give me a buzz then or PM me and I will give you a call.
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you took the words out of my mouth about vee block chassis systems. i also highly doubt you recommend torquing the rear screw first when installing the action into the chassis. i know that is not how an aics is supposed to be installed. i personally don't feel the "loosen the front screw while the rear screw is tight" test is really proving anything when it comes to how a rifle will shoot in a vee block chassis.
