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Bowed ORF Plate

2439 Views 10 Replies 7 Participants Last post by  Steve Anderson
I just tried a trial fitting with my spare ORF side plate and it has a bow in it that is really going to create a problem, I have never seen one this bad! Should I attempt to straighten it? If so, what is the best way?
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As the old builders will tell you a bowed plate is not uncommon, And when I built mine I put a straight edge to everything and found that most parts where somewhere out of spec. Now build that gun with one bent part no biggie but build a gun with several bent parts and you magnafied the problem. When I finished my build I have no binding and the action is so smooth that I can run the gun with a 30-06 booster with the 308 barrel. Next time I will try it without the booster and only the bearing.

My plate was only bowed about a 1/8 of a inch but the 4130 plate was so tough that I had it flexing over a inch between to supports on my press to get it straight, I was amazed and can't remember if I took pics of it. If you can afford the $120 price tag then get a press of at least 12 tons and you will be amazed how often you will use it. Also straighten everything before you put together and don't rely on other parts and rivets to pull it together as I believe that you will only end up with bolt binding and other problems in the end. Just remember when these guns were first built they did not assemble them with bent parts.
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since mine was in the middle I placed hardwood blocks at each end with about a inch of the plate on each end of the wood blocks, I kept a eye on the thinner section where the trunion mounts. I started a little at a time and had to do it over 8 times before it would spring back straight. Just have to work up to it. If a inch failed then press it 1 and 1/8 inches next time. I also let the plate sit under pressure for about 20 seconds before I released it and checked it with a straight edge. Good Luck
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