| Flying_Y_Farms |
| (.224 member) |
| 02/10/14 03:19 AM |
First DR Build .22 Hornet
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I have decided to build my first double. I have decided to use a .410 for the base as soon as I can find a suitable donor gun. My first question is after the mono block has been prepared is there a place that can duplicate the mono block ie autocad and cnc machine out a couple of them for other caliber builds. second is barrels what brand and contour give the classic DR appearance?
Thanks Kurt
| tinker |
| (.416 member) |
| 02/10/14 04:53 AM |
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Re: First DR Build .22 Hornet
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Welcome to Nitro Express Kurt!
I don't know of a shop near you, but up in Seattle (kent valley / Boeing territory) there should be something for you.
Call the local machine shop and start the search there.
Cheers
Tinker
| Flying_Y_Farms |
| (.224 member) |
| 02/10/14 06:14 AM |
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Re: First DR Build .22 Hornet
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Thank you for the info, I just had a couple grad students from OIT stop by the farm wanting to shoot coyotes, long story short they agreed to do the computer work to come up with a cnc model of the mono block. Since I do not have a donor gun yet I gave them my Francotte double in 45-120 express. They said it should not be that hard of a project, they also suggested laser duplicating. by the way they killed three dogs in about an hour.
| Waidmannsheil |
| (.400 member) |
| 02/10/14 07:16 AM |
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Re: First DR Build .22 Hornet
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Welcome Flying, great to see you are considering a DR in 22 Hornet, a great little cartridge. It must be remembered however that a lot of the work that goes into making a mono-block is in the work holding fixtures that are required to hold the work during machining. These fixtures normally have to be as accurately made as the part itself and have to hold the part firmly so that reasonable sized cuts can be made other wise there is no point in using CNC. As you machine away more material fixtures become more important especially once you remove the flat sides when cutting scollops and radii. Jigs and fixture is a very important arm of tool making and can be quite challenging to do properly. Writing the program is quite often the easy part especially if you have access to 3D scanners or co-ordinate measuring machines where the part can be reverse engineered. Holding it can often be more difficult.
Waidmannsheil.
| Flying_Y_Farms |
| (.224 member) |
| 02/10/14 09:44 AM |
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Re: First DR Build .22 Hornet
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I will completely agree Waidmannsheil luckily the boys from OIT say they have everything needed at there disposal, we have a lablonc lathe and Bridgeport mill at the ranch, I can do it just looking for a faster method to build the monoblock so when I tear into my merkle 12 gauge ill be able to build barrel sets with relative ease.
And if anybody has a good donor please let me know.
| Shackleton |
| (.300 member) |
| 16/10/14 02:00 PM |
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Re: First DR Build .22 Hornet
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Good luck on the project, I've wanted to do the same. Always liked the idea of using the EAA/Baikal SXS .410 for a donor but not sure the lockup is up to it. That, and I prefer double triggers, which the EAA does not have. Savage 311 is another but runs into the same issue of "is the lockup up to the job?" Always liked the idea of a DR in .22LR too for some reason.
| Birdhunter50 |
| (.375 member) |
| 18/10/14 01:08 AM |
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Re: First DR Build .22 Hornet
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I would like to add my two cents worth here. Rifle/shotgun combinations seem like a very handy setup in theory, but in practice they don't work out so well. The problem is in where your cheek fits on the gun must remain constant and the stock drop will be another constant. When you add the top rib and the sights to the rifle barrels, that means you will have to raise your head up to meet the new higher line of sight and your shooting of the rifle will be somewhat impared. It may not be too bad with the .410 frame but you still need to try and keep the new sights as low on the barrels as possible.
Since this sounds like your first conversion, I would look for a shotgun that has good lockup first of all, then convert it to the .22 Hornet by using the barrels to make the monoblock and forget about having a second set of .410 barrels for the gun. The .410 gauge is the least useable shotgun gauge out there anyway. I guess what I am saying is that I think that on this first conversion, I would use it as a learning experience without adding in all the extra difficulty of trying to make up a two barrel set. Good luck with your project. Bob
| Birdhunter50 |
| (.375 member) |
| 18/10/14 01:18 AM |
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Re: First DR Build .22 Hornet
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Kurt,
The best way to get your barrels contoured as lightly as possible is to go to various barrel makers websites and check out what their lightest contour is in that caliber. After you locate the lightest contour either buy two of those or send an email to that maker and ask if he can make them ligher up front, that's where you need to make them as light as possible. Don't forget to check and see what type of steel they are using, some is better than others for thinning out of the barrels. The .22 Hornet caliber has been used in drillings for years and they make their barrels very small in diameter. Of course it is fixed to two large shotgun barrels which makes it a good deal stiffer. Bob
| DarylS |
| (.700 member) |
| 18/10/14 01:55 AM |
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Re: First DR Build .22 Hornet
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Quote:
I have decided to build my first double. I have decided to use a .410 for the base as soon as I can find a suitable donor gun. My first question is after the mono block has been prepared is there a place that can duplicate the mono block ie autocad and cnc machine out a couple of them for other caliber builds. second is barrels what brand and contour give the classic DR appearance?
Thanks Kurt
How about Pac-Nor or Green Mountain for barrels.
| Well_Well_Well |
| (.333 member) |
| 18/10/14 06:26 PM |
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Re: First DR Build .22 Hornet
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Walther supply barrels to all sorts of gun makers, they'd surely have something?
| Ckhobart |
| (.275 member) |
| 29/12/14 11:25 AM |
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Re: First DR Build .22 Hornet
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for donors blackbern is decent
http://www.757arms.com/
large selection. If you're ever down in Reno the cabelas gun library has a fair few but they're on the expensive side. Sounds like you've got a neat setup at you ranch haha.