Author Topic: 22-243 Middlestead... (Read 1346 times)

mattparliament · « **on:** September 13, 2005, 04:10:47 AM »

Hey guys, check this out:

http://www.gunsamerica.com/guns/976574871.htm

I already asked if he was interested in splitting them up, no dice...

30 grainers at 5200 fps!

http://www.reloadersnest.com/frontpage.asp?CaliberID=100

http://www.reloadbench.com/cartridges/w22243m.html

knight0334 · « **Reply #1 on:** September 13, 2005, 08:56:03 AM »

as much as I dislike rimless rounds, I think I'd scarf that up in a heartbeat..

Just image how that would grenade a Chuck into gibblets..

Lone Star · « **Reply #2 on:** September 13, 2005, 09:46:48 AM »

I wouldn't buy it. You can get well over 5000 with a 35-grain bullet from the standard 220 Swift. No case forming, no expensive custom dies, no struggle finding safe tested loading data, and no chuck in the world would feel any difference between a 30-grain bullet at 5200 and a 35-grain bullet at 5050 fps. In fact, at 350 yards the Swift bullet is traveling somewhat faster.....

Note that the barrel length for the Middlestead is not noted...it could be 30" long....or 22" long.

Also note that the Swift is a rimmed case.....kinda. :-D

Datil · « **Reply #3 on:** September 13, 2005, 10:03:46 AM »

I'll bet barrel will not last long, be worst than the old 220 Swift.
Just my 2 1/2 cents Marv.

FirstFreedom · « **Reply #4 on:** September 13, 2005, 02:08:39 PM »

Quote

NEA, also in 22-243 Middlested

Did not realize that the National Education Association was in the business of producing SS rifles. :grin:

A. I see no point in getting something that burns the barrel up that quickly.
B. If I did, see Lone Star's post.

Interesting though, for those with time/money.

mattparliament · « **Reply #5 on:** September 13, 2005, 04:33:02 PM »

I did some reading today and it looks like their are some variations to this idea. The first is a 22-243 remington, 22-243 middlested, 22-243 remington ackley, and so on. check out www.midwayusa.com and search 22-243. The current version is the 223 wssm and due to the marketing by those guys it is what it is, a remake of what was already available, even if it was just for handloaders. Another thought, the 22-243 remington does not require fire-forming, it appears you can neck-size 243 brass to it, correct me if I'm wrong. It seems this would be an easy conversion: 22-243 remington reamer, 223 ultra barrel, 243 extractor, and a whole bunch of powder behind that little buller. Any wildcat is just that, throats and that are known to be sacrificed going into the project. But remember, it's all for fun!

warf73 · « **Reply #6 on:** September 13, 2005, 07:32:29 PM »

mattparliament

OK I'll let the cat out of the bag. The only reason I got the 22-250 barrel for my H&R was to make a 22-243 40degree.
aka. 22-243 Akly Improved.

All you have to do is ream out a 22-250 chamber to the 22-243Imp/or Middlested chamber.

The 22-243 Middlested is a 243 case necked down to 224" with a 30degree shoulder.

The 22-243 Imp. is same as above but with a 40degree shoulder.

Custom dies for reloading either chambering will run about $70
Reamer will cost under $100 that includes shipping both ways with go nogo gauges.

I've got data for the Middlested which will be my start up loads for the Imp. chambering.

The project is on hold till I get a 44mag barrel so I can ream it out.

P.S. Expected barrel life should be right at 2500.
Or in other terms 8 Oklahoma pdogs shoots.
I averaged about 300 rounds per rifle I took last spring.

Warf

Lone Star · « **Reply #7 on:** September 14, 2005, 04:21:40 AM »

Quote

All you have to do is ream out a 22-250 chamber to the 22-243Imp/or Middlested chamber.

Not quite correct. You cannot make a correct .22-250AI chamber unless you can set the barrel back; the way the AI chamber is made, unless the barrel is set back you will have excessive headspace with .22-250 cases.

The simple way to correct that is to expand the .22-250 neck to .243", then run the case into the AI sizing die until the case will just chamber. This gives zero excess headspace and as long as all new cases are sized in this manner there will be no problems. Either that, or you can figure out how to set a Handi barrel back....

mattparliament · « **Reply #8 on:** September 14, 2005, 05:00:32 AM »

warf~

the cat is out.... During Montana's oncoming cold cold dark dark winter I plan on ordering an ultra 223 bull and a spare 17HMR(the one I have now fits perfectly on my centerfire frame) and they will be reamed to 22-243 (of some sort) and 17 remington. I know barrel life is not expected to be too long with these but who cares!? When they get worn out do it again, or find a new caliber to play with. Lets face it guys, these guns are hobbies, Handi's will never be collectable, let's use them and have fun!

warf73 · « **Reply #9 on:** September 14, 2005, 08:12:52 AM »

Lone Star

You lost me, I'm makeing a 22-243Imp not a 22-250Imp.

Simply said my parent case will be a 243 no th 250 case.

Warf

dano · « **Reply #10 on:** September 16, 2005, 04:54:55 AM »

I have a friend here that has a 22 cheetah. 243 case necked down to 22 I believe that it is a 18degree shoulder. He shoots a 80 gr. hollow point. This is 1 of the most accurate rifles that I have ever shot. The man that builds these rifles is building alot of the 22-243 that doesn't require as much brass work to reload. would be interested in 1 in handy barrel.

warf73 · « **Reply #11 on:** September 16, 2005, 07:45:39 AM »

Dan

I will have this ready for the Pdog shoot next spring.

Warf

Datil · « **Reply #12 on:** September 16, 2005, 07:56:29 AM »

Dano, Glad to see come around once in a while, You should come
around more often. Sure would like to have a mess of ribs now.
any remarks about barrel life with the 22-243? Marv,

cheatermk3 · « **Reply #13 on:** September 16, 2005, 12:02:52 PM »

If you do go with a 22 based on the 243-sized case, you may wish to consider the 22 CHeetah MKII, with a few changes that I made to the design.

Basicly I went with a 1-in-9 twist and 0.100" longer throat to acomodate longer, heavier bullets. I'm shooting Sierra 103gn bullets at 3650 fps. This rig will slay prarie dogs at 800yds on a regular basis. It's on a Ruger action.

I start with 308 win. cases, not the BR cases because I like to use the large rifle primer. The original CHeetah and the MK2 are both based on the 308 win BR case, which has the small rifle primer pocket. This may work in Southern California, using the lighter bullets and faster powders, but for a long-range unit that may be used in cold weather, you need a large rifle primer at least. I'm shooting a hefty charge of WW WLR powder and lighting it with CCI BR4 primers.

I use 308 brass so that there is plenty of material in the neck for me to work with; I turn the outside of the necks for a .0015 thickness and fireform.

I call it the 22 CHeetah MK3.