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Joined: Dec 2002
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I had Sharp Shooter Supply rechamber a 26 inch 112V from 22-250 to 22-243 AI 40 degree. I never really pushed the pressure with it. Shot 60 gr Hornady spire point at 3800 fps comfotably. I would have to dig out notes to tell you what powder I used.

Let me know if you are interested.


My ideal as a conservative:

That each person may reap as he/she has sown.
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Originally Posted by woodson
Dave I look forward to how that Hawk Hill barrel shoots once you get load development done. Also report on how it cleans up?

Looks like a fun project.


Hawk Hill’s .224 barrels do not disappoint.
.223 here. 10 shots, the flyer fugked me.
55gr vmax over Varget.
The other group was some mil surp fmj.
[Linked Image from i.postimg.cc]

Last edited by jackmountain; 08/10/22.


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Campfire 'Bwana
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I’ve got the Hawk Hill 1-7 224 barrel for my sons gun you gave me the stock for. Along with a TriggerTech. It should be a dandy when it’s all done.

Hope it shoots like that.


Semper Fi
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Campfire 'Bwana
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Originally Posted by dave7mm
Originally Posted by SKane
That looks like a fun project.

Should push a 55gr to 3900ish, no?
I think thats a realistic estimate.
Won't know for sure untill I get some ladders shot and see where the pressure is.
dave

dave7mm;
Good evening to you sir, I hope the day behaved for you and all who matter to you are well.

Thanks for the thread and the build specs, it looks like an interesting project for sure.

Just looking at the cases, that is a .22-250AI that I've got and a .243 case, I can't see why 3900 with a 55gr would be a problem to hit or exceed.

Years and years ago I built a long range coyote bomber with a 1:14 twist in .22-250 because that's what we did then. It's a 26" Douglas Premium Air Gauged No 4 contour so not really a lightweight rifle, but it'll push 55gr VMax or Ballistic Tips to 3850 with either IMR or H 4895.

Photo of ancient boomer coyote medicine.
[Linked Image]

When our youngest daughter started hunting, she got a whitetail doe draw and we were hunting the hayfields of the fellow we bought horse hay from, so packing the gun wasn't an issue. I went as far as loading up some 55gr Hornady Spires in it and also bought some 60gr Partitions, but she killed her young doe with her .250AI without needing help from the Old Man, so that was that for testing it out on deer.

As GWP said, it's absolute death on dogs. Crazy really compared to almost anything else we tried.

I want to say that Eileen Clarke has been using a .22-250 on some smaller big game the last few years too and the reports have been all great, so yours should be just a bit better than great, you know? wink

Thanks and good luck on your hunts with it.

Dwayne


The most important stuff in life isn't "stuff"

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I have a 14 twist Swift and have been thinking of a fast twist .243 Middlestead or Swift for medium size game. The problem I find with .224 is the same with 6mm, there aren't many (any?) high bc hunting bullets that will take the high impact velocities consistently. I'd like a 75 grain .224 mono hunting bullet or even a very good bonded bullet with a bc around .450 that would work in a 7 or 8 twist, just like I'd like a 90 grain 6mm mono (or decent bonded) hunting bullet with a bc near .500 that will work in a 7 or 8 twist. But they haven't been developed yet, at least not by the large bullet manufacturers.

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dave7mm Offline OP
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[Linked Image from i.postimg.cc]
First blown case ..
dave


[Linked Image]

Only accurate rifles are interesting.
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dave7mm Offline OP
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[Linked Image from i.postimg.cc]
243 win
22/243 Middlestead
22 CHeetah
Left to right.


Dave


[Linked Image]

Only accurate rifles are interesting.
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Campfire 'Bwana
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Looking good buddy! Looking forward to seeing a few going over the radar!


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Cool looking case. I’m also curious to see the numbers.



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