Polygon Rifling

Butch,

I spoke with Ed Shilen about it at a match earlier this year and he confirmed what you said. He hadn't made any in 20 years or more. I did take it out to the range for some ammo testing today. The winds were light and switchy but it was shooting lights out and was much more resistant to the wind than my other gun with the Benchmark barrel. I think I'm going to be shooting this gun a lot more in the near future and if it performs well in matches, I'll try to get Ed to make me a few more.
 
Don't know if the Ratchet Barrels count. They are not standard lands and grooves. They are recent manufacture. Look at Shilen's website. This is not a secret anymore. They are not normal, Neither is Broughton's 5C barrels. But there seems to be a parallel between accuracy and these barrels in todays barrels. Hide from the truth all you want. But it is the truth. Performance is the key. I've seen enough to see enough.

Carp
 
A ratchet barrel is a totally different animal than the Polygonal. I had a ratchet barrel a couple of years ago which shot extremely well but wore it out after 15,000 rounds. When you look down the barrel of a Polygonal barrel you see the spiral pattern but put in a bore scope and you see no lands and grooves. It looks like a smooth bore.
 
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