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Post by bullseye69 on May 20, 2016 20:55:09 GMT -5
Began working on my Savage 110 switch barrel gun. This Savage is a 300WM right now but will be a 22 CHeetah also. I have a Pacnor barrel SS 8.6 twist that I'm going to use. I got it threaded for the receiver and chamber it today. I will turn it around tomorrow and thread the end and start working on a brake for it. Then I chambered it for the fast 22 CHeetah MKI
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Post by deadeer on May 20, 2016 22:11:04 GMT -5
Looks like a cool project. Can't wait to see when it goes bang.
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Post by dbd870 on May 21, 2016 7:23:52 GMT -5
Looked up the ballistics - good bit faster than a 22-250. Quite a rocket!
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Post by nfalls116 on May 21, 2016 7:41:24 GMT -5
What is the o.d. on that barrel?
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Post by bullseye69 on May 21, 2016 17:10:01 GMT -5
Looked up the ballistics - good bit faster than a 22-250. Quite a rocket! Yes its a screamer. Its a 8.6 twist so I can shoot the heavy 75 and 80 grainers. I want to keep it right around 4000fps. zero at 200yards and should be a point and shoot from 100 to 300 without worrying about holdover or under.
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Post by bullseye69 on May 21, 2016 17:11:00 GMT -5
What is the o.d. on that barrel? Blank size on it is 1.25 but will turn it down to 1.0625.
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Post by cedarthicket on May 21, 2016 18:14:00 GMT -5
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Post by bullseye69 on May 21, 2016 21:44:55 GMT -5
Started off with 308 but went to the 243 as it is easier with a whole lot less steps.
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Savage 110
May 21, 2016 22:23:06 GMT -5
via mobile
Post by nfalls116 on May 21, 2016 22:23:06 GMT -5
That looks like a hot round. Do rounds like this generally wear barrels faster?
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Post by cedarthicket on May 22, 2016 12:41:05 GMT -5
Started off with 308 but went to the 243 as it is easier with a whole lot less steps. I can imagine some of the troubles with using .308 Winchester brass versus .243 Winchester. Could be very frustrating to form the generally thicker .308 Win brass in the shoulder & neck area of the wildcat. Just wondering if you have the neck diameter of your wildcat chamber large enough to avoid the need to outside neck turn (or inside neck ream) cases formed from .243 Win brass? With a wildcat I developed several years ago (1.625” version of the 1.800” .358 Hoosier) I found that commercial .243 Win cases made by Winchester worked great with no neck turning or reaming needed (with the chamber neck diameter specified). Of course, I had made up and measured some dummy rounds before specifying the chamber reamer dimensions.
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Post by bullseye69 on May 23, 2016 17:00:18 GMT -5
The neck dia. of the case has to be .251 so a little inside and outside neck turning is done with the 308 cases. With the .243 I only have to outside neck turn.
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Post by bullseye69 on May 23, 2016 20:25:26 GMT -5
Finished the brake and crowned the barrel and then installed the brake. Finished profiling the barrel to a 1" bull barrel, which took a while to do seeing as the barrel is 28" long without the 2" brake on it. It has to be done in sections and when you get down to the last pass you have to make sure it matches up to the final size and that it doesn't chatter on you. then you have to go smaller on the whole thing to get rid of the chatter marks. The steady rest helps with the barrel chatter but it can still get you sometimes. Once you get it down to the right size you final finish it with some 240 emery cloth ,spinning at a high rpm and after that run a green scotch brite on it for a while on a fast rpm also.
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Savage 110
May 23, 2016 20:53:42 GMT -5
via mobile
Post by nfalls116 on May 23, 2016 20:53:42 GMT -5
That's looking cool
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Post by stevein on May 24, 2016 8:43:24 GMT -5
Am I missing or are you just chucking with set screws? Nice looking job. I have heard using a ball peen hammer hooked on the barrel with the handle on the bed will dampen vibration. Never tried it.
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Post by bullseye69 on May 24, 2016 19:25:46 GMT -5
Am I missing or are you just chucking with set screws? Nice looking job. I have heard using a ball peen hammer hooked on the barrel with the handle on the bed will dampen vibration. Never tried it. Yes just using one half of my spider set up. Brass tipped 3/8 set screws. As long as you don't gouge too deep it works just fine. Plus it makes the bed longer if you don't have the big 4 jaw chuck taking up 6" of space. Haven't heard of the hammer thing but I suppose it could work to an extent.
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Post by bullseye69 on May 24, 2016 21:44:03 GMT -5
I then installed the receiver and head spaced the barrel. Yes that is my home made barrel vise out of some gear racks that we threw away at work. I repurposed them. I don't like to buy anything I can make myself. All I have for a stock is the original cheap pine stock that it came with which was channeled for a light contour barrel. I had to open her up a little. Here she is all ready to get a scope on her and test fired. That 30" barrel looks way longer than it did in the lathe.
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Post by nfalls116 on May 24, 2016 23:01:57 GMT -5
Well if it doesn't shoot you should be able to hit them on top of the head from 5 yards away
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