I was told that these barrels chamber leade is cut a touch deeper to accommodate the CCis shallower forward driving band depth. This was a big plus to me and I'm hoping for the same preference. I think a lot of Aguilas have the same shallow band depth.
Hello OldBlades, How Old is OLD? :>) I asked that to Oliver North one time.
I have to say my rifling is a little different than the regular rifling and I won't tell how I manufacture it. It is an 8 groove at .218 Bore and .222 Grooves. When people talk about a special chamber they are using to make the bullets shoot straight, there is nothing out there that has not been tried before. I have tried them all. On this rifling we tried pushing into the rifling a little and we saw not much difference. We went up to .250 in the throat to see what would happen. We use a standard Bentz Chamber, but it is .0015 bigger than the normal chamber because as you chamber the reamer wears down and continues to get smaller and the more barrels you ream the smaller it gets. That is the problem with the standard 22 barrels. The bore reamer gets smaller each barrel you ream. After 50 barrels the bore could be .0005 smaller. When you rifle that barrel the groove will be smaller. The reason my barrels all shoot the same Like Anschutz is we both Hone our barrels. When we hone them we can make the Bore the same size, so if we want .2171 or .2172 or .2173 or .2179 we can make them to what we want and test them and honing makes them smoother and a little straighter.
Anschutz knows what I have been doing for years, they are my friends and I have known them for over 10 years. They bought a machine just like mine. Saco in Finland now has 3 of them. FN in Columbia SC bought one from Acadia in Germany and Belgium bought 2 machines from Acadia @ 1 Million US Dollars each. Why ream! It gets rid of the reaming marks and gets rid of the fouling, rounder and smoother and just a smidgen straighter.
The first to honed barrels were Anschutz. That is why all the Olympic shooters select their rifles. They make the finest barrels in the world, until NOW. :>)
I have to laugh, because over 10 years ago I told that to Mr. Anschutz at one of the Shot Shows in Las Vegas he laughed and SAID UNTIL NOW with that deep German Accent. We are now the best of friends and his son too. One thing, I never had time to work on the 22 Rimfire until June of 2011, which I have to give credit to Gary who works for me. He told me I had to finish my work that I started 11 years ago. So here we are, and I am not finished testing what we are making right now in 22 Rimfire, 223, 308, 338 and the big 50BMG
I have tested the same rifling on the Ruger charger 1022 and the barrel lengths were, 2 1/2 inch 4 inch, 6 inch, 8 inch and 10 inch. I need to stop typing I need to get back to work. Good Night. I get 25 phone calls a day. I get 50 to 75 emails a day asking questions. I love to talk and I am so far behind in my work. One more comment: It took me 2 years to find out how Greenhill got his formula to calculate the spin of a bullet. LATER, Yes I am going to make you wait. hehehe