High speed .224's

I'd forget about the swift all together because of case design and brass. 22-250AI twisted 1-8 is a better case design has more brass and better brass plus the ability to shoot cheap. Never know when you will run out of handloads on a major baboon hunt...

Yeah, that's the route I would take, too. 22-150 AI gives lots of velocity and there is minimal mucking about with forming brass.
 
Ive been hearing about the 223AI lately. Luftmech where did you get yours done?

Sorry Cleftwynd for the little derail. :)

Hey, I love when a conversation evolves! More to read and learn as far as I am concerned.



To the rest, going from 220 Swift to the AI version seems simpler than going from 243 to 22-243, then fire forming to 22-243 AI. Both are simpler than the middlestead though, one of the reasons I place it third or lower in my choices.

The main reason I would go to the AI in the swift is case taper, the extra velocity isn't needed for me. The 22-243 AI is interesting to me as well, just a slight bit more case prepping. Being able to fire factory ammo in the 220 SAI and end up with fire formed brass is appealing as well.

I will keep investigating, in a perfect world I would own one of everything....lol
 
What sold me on the 223 AI was the ease of forming the brass, install 223, shoot, return home and reload as an AI. I was surprised at how accurate the the 223 rounds were when fire forming, to the point that I hunt with them as is and top off as AI later.
 
I called a few but they were not comfortable with pulling a T/C barrel. They had the reamers but did not want to risk messing up the barrell in removal
 
.223AI/22-204 are close to the same case capacity. If you weren't in to fire forming run the ruger case. I'm getting my current .223ai worked over this winter with a new McMillan and a 1-8 twist #2 shilen SS super match.

Back to the 22-250AI vs the 220 swift. I don't really care for the semi rim on the swift or havin to stagger the rounds in the mag. Lapua makes 22-250 brass and there are lots of cheap/premium factory loads if your ever in need. I think in the end the 22-250AI would be more user friendly than any thing on the swift case. Twist it 1-8" out of the gate to take advantage of all the .224 pills.
 
The .22x64 looks interesting:

223_to_22x64.jpg

223 Remington, 22-250, 220 Swift and 22x64

http://www.gsgroup.co.za/22x64.html
 
Hey, I love when a conversation evolves! More to read and learn as far as I am concerned.



To the rest, going from 220 Swift to the AI version seems simpler than going from 243 to 22-243, then fire forming to 22-243 AI. Both are simpler than the middlestead though, one of the reasons I place it third or lower in my choices.

The main reason I would go to the AI in the swift is case taper, the extra velocity isn't needed for me. The 22-243 AI is interesting to me as well, just a slight bit more case prepping. Being able to fire factory ammo in the 220 SAI and end up with fire formed brass is appealing as well.

I will keep investigating, in a perfect world I would own one of everything....lol

Actually no difference 22-243 AI than 220 Swt AI. I always run my new cases through the sizer first before loading to round out necks etc so it is exactly the same process, or at least it would be for me.
Swift does have the advantage of fireforming factory ammo, however there is significant blow out with the swift which MAY split some cases if not preannealed.
 
Kind of hard to anneal factory ammo without first removing the bullet, powder and primer, lol

I would be interested to see the case failure rate when using factory 220 Swift ammo to fireform casings.
 
Check out the 220 Weatherby Rocket. It was a factory round in the fifties. It is an improved Swift but you can order dies and reamers for it. I built several years ago and a 22-243 Middlestead. They both had the same water capacity and gave the same velocity. The Rocket will shoot a 55 grain bullet at the same velocity as a Swift will shoot a 50 grain bullet.

There are no issues fireforming Swifts to Rockets. Chamber a full pressure Swift and fire. Out comes a Rocket. It is also extremely accurate fireforming. I never lost a case doing this.

The 22-243 Mid is a royal pain to make the cases. That is why I quit building this caliber. Since it gave the same velocity as the Rocket it was a no brainer.

The Swift case is a stronger case also and you don't lose many if you want to jack up the pressures.

Steve
 
When I called Ted he would supply the barrel but did not want to install it, Craig was not familiar with my Rifle brand and was not comfortable in doing the work. I respected that he said that up front instead of trying to work on it and finding out later that is was not right. They were both my first calls, there is another guy by Kerrobert or someplace that PR uses for their work but his turnaround time is around the 12 mos. area when I called him.
 
I personally haven't done enough to say, but there is a fair bit about them on the internet and it is the only practical case that will drive an 80-90 gn .224 bullet at speeds approaching 4000 fps with a 30" barrel. It would seem to be about 250-300 fps faster than the 220 AI with heavy bullets. I will know more in the months to come.
I built mine for a very specific use, an all you can shoot 2 week baboon hunt and I don't care if I have to rebarrel it afterwards. I need a round that I can shoot 200+ rounds a day accurately out to 500 mtrs and quite possibly in the wind. The over .5 BC of the 80 and 90 gn match bullets @ 4000 fps really minimizes the wind factor and allows for a body hold out to 500 mtrs with a 300 mtr sight in.
A tree farmer (friend of a friend) in South Africa has a permit to remove 1000 baboons from his nurseries, as they are debarking and killing his trees. I think I'll just have to go and help him out with that little problem!!

Wow, I hope you can bring us video on that!!! That would be a blast! They sure can be amazing destructive.
 
Back
Top Bottom