I am currently building a rifle that I want to be able to compete in Open F Class I have the basic rules. But I have a couple questions for someone who actually shoots the class. I will be doing this with a 30-06 chambered rifle. I was given a Barreled action a while back and since it is a Massive Mauser 98 action (1.410" large ring) with a 25.5" x 1.180" D barrel (most guys that have looked at it think it is a mid 1960's to mid 1970's Douglas) And I want to build a stock for it similar to a Keppeler Benchrest Rifle with Metal Stock K05-B (F-Class) http://www.keppeler-te.de/cms/media/Sport/benchrest_k05b_max.jpg I already have the design of the stock drawn out and my next step before any real work is to have a local gunsmith who he himself shoots longrange rifle events check it all out to make sure its worth the effort. I am not so worried about winning events as I am having fun shooting. I used to shoot Blackpowder rifles in various competitions from trailwalks to bench rest and I want to get back to something similar and long range has always been an interest. SO if you have been shooting F class or F T/R class I would like to ask some questions.