Any chance that you might have some more pictures or information on this rifle that you could share. Thanks

Thank you for the information.

Yes. Duanne Jenner holding Tom's Yost barreled using structural high grade rebar.
It was difficult for Ron to rifle due to variations in hardness of the rebar.
Ron Smith had two Yost actions and sold one to Tom. 
I had the third Yost action purchased by a Canadian and I sold it to Colleen & Rob. 
Steve Holborn (Canadian) bought the Yost manufacturing parts and he has made some Yost parts. 
He was going to sell actions. 
But health issues got in the way.

When I started shooting Schuetzen: the side of the forearm had to be 90 degrees and you were not allowed to angle or bevel the sides to improve tracking in the sandbag. 
The sides of Tom's Yost forearm are angled in to the top - when did they remove this restriction from the rules?
The Schuetzenmeister is supposed to be able to lift the rifle freely from the front sandbag.
If the front rest is picked up when the rifle is lifted then it is a mechanical rest which is not allowed.

Tom Over the years you ridiculously challenged everyone for impeachment of the rules.
I never challenged you since I always beat you regardless of your indiscretions.
Now that I am not shooting everyone else are now aware of your indiscretion and will be monitoring you at future shoots.
If you are following the rules then this should be of no concern to you.

Singleshotom you are indeed correct about what the rules clearly point out as being perfectly acceptable.

Read the rules! 
Issa match regulations  most Recent copy 2009
Section 1 --------- 1.6   deals with forearm
Section 8  --------- 8.7  deals with front rest
No other mention of either in any the rules in the book!
Go read if your so concerned..... 
And I will insist that ever shoot official will test my gun and rest. And measure what's in contact with the bag.
If your to lazy to go read for yourself. Don't embaress yourself a rounded side on a forarm has always been lawfull. Other wise no original rifle would be allowed to be used Dave. Never was anything in the Rules ever in this sport! Don't matter who told you what, that's the facts.
90 degrees have never been in the rules that we've shot under! Your really proving what people are asking Dave.
Research the rules then talk!

Yes please!!
Very disturbing to be attacked by a disgruntled shooting  on this forum!
I'm truly sorry for it.
Thnx
Sst

Well, now I will comment on the Yost action!
This my opinion only from my own experence.
It is a very well made action, the design is quite ingenious
And actually very simple when taken apart.
Like all actions there are things that may cause problems.
The one flaw I have experienced and I've heard from several Yost owners is the spring that basically operates the entire action. Now what myself an Ron Smith found from trial and error tests was that the shape is critical first off! Along with that the second thing and as important or more then shape is the spring strength. 
We had several springs that were made and found them not performing properly. So Ron started drawing them down, as you do with all springs and after several attemps at various tempatures we seemed to hit the exact tension!
Now without that knowledge of drawing down a spring it is very hard to get both perfect tension and not so brittle it breaks after quite a bit of use!
Unless of course you have a spring made and randomly drawn down an get lucky. 
Other then that these actions are a dream to use and work with. 
I'm very fortunate to own and used Mr. Yost's dream action 
And am very sorry that these are not readily available for more people to have, use and enjoy.
The making of more of these is not dead as I understand 
Steve Holborn of Ontario Canada has purchased the Rights, an equipment for them. Like some of us health issues have got in the way, but I hear he is on the mend and doing really good so there is hope!
Thnx for your time
Sst