Free floated actions and barrels

C

CR2008

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I mistakenly posted this sort of question on the centerfire forum and I wanted to provide the link to my original thread where I asked the question on stockless type set ups for rimfires:

http://benchrest.com/forums/showthread.php?t=54095

Has anyone here ever had their gun set up in such a manner (or known someone who has)? After experiencing some POI issues with my new CZ 452, the option of setting up a stockless design or using a barrel block to float the action and barrel is looking very appealing... I could get a synthetic stock, uninletting and do the barrel block similar to the picture shown... I am leaning towards that option.


http://www.6mmbr.com/gunweek075.html
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Ken Fulgum has an aluminum stock that is free floated. You may contact him.
Jim
 
I've thought about this too and have wanted to try it, seems like it's worth a shot. I've wondered though if there is an optimal place on the barreled action to clamp the block on. I suppose if I did one I would attempt to build up a stock with an adjustable block built along a rail where the barrel channel would be. The nice thing about rimfire is that you wouldn't need to worry about heavy recoil forces as much as centerfire shooters.

There is a machine shop close to me that could fabricate a block for me down to extremely close dimensions and glassbedding could take care of the rest. I think I might try this with the next complete rifle I build up. When you think about it, this method would bypass all of the nuances with pillar bedding different actions. Seems appealing to me.

Another idea I've had, along the lines of the free-floating reciever and barrel idea, is to clamp down the reciever. However, this would be done with two clamps that would almost be like scope rings, except bedded into the stock and heavier, eliminating the need for action screws and leaving the reciever and barrel free-floating, except for the two clamp points of course. When I'm done with work today I'll draw up some ideas.
 
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From the way I see the rules

in ARA, you could shoot a full blown rail gun. Has anyone ever tried that and did they have any success? It seems that may be a good way if a quick aiming device was built into it to move the aim.
 
barrel clamp

I've been using a Ross Precision (www.rossprecision.com) stock with the barrel clamp. Mike Ross was kind enough to make available for me an aluminum stock blank with a barrel clamp. Currently, I have the action rear tang supported on nylon shims to the alum. stock, instead of cantilevering the action. Did this to dampen or lessen the additional vibrations into the system. This system shoot OK now, however, I need to spend a lot more time tuning the barrel.

The biggest problem with this system is that the hormonics/vibrations of the whole action-barrel-stock combo is entirely different than a conventional rifle. I think this system has great potential, but be prepared to spend a lot of time in the fine tuning.

Dennis Reineke
 
I remember that Joe Besche used to shoot a full blown rail gun a few years ago and did pretty well with it. If you look on the D&B website (Shehane stocks) you will see a picture of one of their 1000 yd guns with a barrel bedding block mounted in one of their tracker stocks. Randy Leger with Accu-shot has built three rimfire guns indentical to this setup for me and they all shoot great. In my experience I find them much easier to tune than a conventional action bedded gun.
 
Kens right I used a rail for several years ( till it got to heavy ) or I got to old to setup. I had the barrel block cut out with a v so it could handle any barrel size from .75 too 1.25 without shimming. the thing nice about a barrel block used with a rail is you can tune your gun by sliding your gun back and forth them fine tune with your tuner
 
metal guns, fimfire

I have a new just finished all aluminum space gun set in a one piece base where the bbl and action ONLY recoil. aggs in the ones @50 BEEN SHOOTING THEM FOR YEARS.

CONTACT ME FOR PICTURES, DETAILS AND SECRETS OF MAKING THEM SHOOT. frank@franktirrell.com
 
I also started thinking about this about 3 weeks ago,and talked it over with a gun smith and he is making me one on a hart barrel and suhl action,shehand stock,dont know how he is going to do it yet,but Iam sure he will come up with a good idea,Bob.
 
This is what I was picturing in my mind (and here, crudely drawn with Microsoft Paint) as far as two clamps holding down a free-floating barreled reciever.

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The clamps would be similar in design to scope rings, except much thicker for stiffness and stability. They would be mounted to a rail or block bedded into the bottom of the stock, which would have multiple screw holes drilled through to allow for different locations of the clamps. The barreled action itself could be moved within the clamps. Scope rail mounted directly on top of the two clamps. Seems like it would be pretty adjustable and stable enough for rimfire shooting. Glassbedding material (Devcon?) could be added in places that need zero-tolerance contact.

Quick idea I thought would be worth throwing out. Whaddya think?
 
V cut the top and bottom to eliminate the need for an exact 1/2 round channel?
 
Wouldn't a round clamp apply more even pressure to the reciever?
 
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