|
Joined: Jun 2008
Posts: 128
Campfire Member
|
OP
Campfire Member
Joined: Jun 2008
Posts: 128 |
Guys, I am thinking about building a 22-6mmAI. I am thinking a bartlein 1-8 twist barrel at 26-27". I know you can use 6mm cases to get there. What about the 224 TTH? Would that not be a better case to start with? Already necked down, just have to blow the shoulders out to 40 degrees. Also I have searched here and elsewhere for load info. Most is for standard 22-6mm, not the AI. Looking at the big Bergers 80-90grain for this rig. I like the bigger bullets for long range shooting. Any help/advise would be appreciated. Mark
|
|
|
|
Joined: Nov 2008
Posts: 8,641
Campfire Outfitter
|
Campfire Outfitter
Joined: Nov 2008
Posts: 8,641 |
Does a 22-66mmAI look like this?
Swifty
|
|
|
|
Joined: Jun 2008
Posts: 128
Campfire Member
|
OP
Campfire Member
Joined: Jun 2008
Posts: 128 |
|
|
|
|
Joined: Nov 2008
Posts: 8,641
Campfire Outfitter
|
Campfire Outfitter
Joined: Nov 2008
Posts: 8,641 |
Swifty
|
|
|
|
Joined: Jul 2004
Posts: 6,663
Campfire Tracker
|
Campfire Tracker
Joined: Jul 2004
Posts: 6,663 |
Might be a little overbore...
'Four legs good, two legs baaaad." ---------------------------------------------- "Jimmy, some of it's magic, Some of it's tragic, But I had a good life all the way." (Jimmy Buffett)
SotG
|
|
|
|
Joined: Dec 2008
Posts: 78,300
Campfire Oracle
|
Campfire Oracle
Joined: Dec 2008
Posts: 78,300 |
Barrel makers gotta make a living too...
"...the left considers you vermin, and they'll kill you given the chance..." Bristoe
|
|
|
|
Joined: Oct 2013
Posts: 18,910
Campfire Ranger
|
Campfire Ranger
Joined: Oct 2013
Posts: 18,910 |
What about a .22 caliber on a 243 case? Quality brass is very easy to acquire.
Last edited by 10gaugemag; 12/09/16.
The last time that bear ate a lawyer he had the runs for 33 days!
|
|
|
|
Joined: Aug 2003
Posts: 19,822
Campfire Ranger
|
Campfire Ranger
Joined: Aug 2003
Posts: 19,822 |
Might be a little overbore... Only in a short action. Personally, I wouldn't think of anything more than a 22-30mmAI, full length of course, to avoid that overbore issue. Ed
"Not in an open forum, where truth has less value than opinions, where all opinions are equally welcome regardless of their origins, rationale, inanity, or truth, where opinions are neither of equal value nor decisive." Ken Howell
|
|
|
|
Joined: Nov 2006
Posts: 3,652
Campfire Tracker
|
Campfire Tracker
Joined: Nov 2006
Posts: 3,652 |
About 20 years ago me and my nephew tried about every 22cal possible. we tried a 22-284 that is just slightly larger capacity than a 22-6mmAI........you will never get the speeds you think you will and the barrel will be half shot out by the time you work up a load. Biggest I will go ever again is a 22-250AI with 1-8" twist. about 5 times the barrel life and you give up very little velocity.
|
|
|
|
Joined: Jul 2009
Posts: 1,476
Campfire Regular
|
Campfire Regular
Joined: Jul 2009
Posts: 1,476 |
I always wondered if the 22-6mm would be almost the same as the 220 Swift.
|
|
|
|
Joined: Nov 2008
Posts: 8,641
Campfire Outfitter
|
Campfire Outfitter
Joined: Nov 2008
Posts: 8,641 |
This is off accurate shooter fo 22-6mm http://www.accuratereloading.com/226rem.html49.0 RELOADER 15 4484 0.682 NOSLER 40 BT 50.0 4585 1.686 51.0 4634 2.112 53.0 H 4350 4211 1.501 54.0 4286 1.366 48.0 VVN 540 4324 1.782 49.0 4447 2.494 45.0 RELOADER 15 3958 0.314 NOSLER 50 BT
Swifty
|
|
|
|
Joined: May 2011
Posts: 1,382
Campfire Regular
|
Campfire Regular
Joined: May 2011
Posts: 1,382 |
If you have access to Wildcat Cartridges Vol. II from Wolfe publishing, check the data for the .224 Clark. Dimension drawings show it is a little longer to the neck/shoulder junction (11.933") and a little fatter at the shoulder (.455) than Hornady's drawings for the standard .22/6mm; it has a 30 degree shoulder. I don't know the dimensions for the .22/6mm AI, but I'd suspect they are close enough for starting loads.
Dale
|
|
|
|
Joined: Sep 2006
Posts: 2,087
Campfire Regular
|
Campfire Regular
Joined: Sep 2006
Posts: 2,087 |
They have a 5.6x57 in Europe! Be about the same thing.
|
|
|
|
Joined: Jul 2001
Posts: 60,098
Campfire Kahuna
|
Campfire Kahuna
Joined: Jul 2001
Posts: 60,098 |
The .223 WSSM has just about exactly the same powder capacity as the .22/6mm, and I've used .223 WSSM data in a .22/6mm with just about identical results, though obviously that would depend on the throat length in the .22/6mm, plus throat wear in either rifle. But the main point is that .223 WSSM data is a good starting point for the .22/6mm AI.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
|
|
|
|
Joined: Jun 2007
Posts: 21,953
Campfire Ranger
|
Campfire Ranger
Joined: Jun 2007
Posts: 21,953 |
Does a 22-66mmAI look like this? No, thats a 25 caliber....
|
|
|
|
Joined: May 2013
Posts: 869
Campfire Regular
|
Campfire Regular
Joined: May 2013
Posts: 869 |
Haha blue tip nosler....... good catch
|
|
|
|
Joined: Jun 2008
Posts: 128
Campfire Member
|
OP
Campfire Member
Joined: Jun 2008
Posts: 128 |
Thanks for all the info. I will be sending a long range Remington to Pac Nor for a new barrel next year. Always like the oddball stuff. Have a Merry Christmas all.
|
|
|
|
Joined: Jan 2001
Posts: 30,760
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Jan 2001
Posts: 30,760 |
Might be a little overbore... yep.......6mm Rem w/47 grs is overbore enough....
T R U M P W O N !
U L T R A M A G A !
|
|
|
|
Joined: Jul 2005
Posts: 1,785
Campfire Regular
|
Campfire Regular
Joined: Jul 2005
Posts: 1,785 |
About 20 years ago me and my nephew tried about every 22cal possible. we tried a 22-284 that is just slightly larger capacity than a 22-6mmAI........you will never get the speeds you think you will and the barrel will be half shot out by the time you work up a load. Biggest I will go ever again is a 22-250AI with 1-8" twist. about 5 times the barrel life and you give up very little velocity. Pretty much the truth. I had a .22-6mm made up in a 26" barrel, and my experimenting has lead me to using Norma MRP with 75 grain bullets. I still cannot manage less than 1" groups at 100 yds, though...not impressed thus far.
"I didn't realize we had so many snipers in this country." by J23
|
|
|
|
Joined: Jul 2001
Posts: 60,098
Campfire Kahuna
|
Campfire Kahuna
Joined: Jul 2001
Posts: 60,098 |
My .22/6mm had 24" 1-8 Brux barrel, in a heavy sporter contour. It was easy to get to get 5-shot groups inan inch with several bullets, and much smaller with some. But it absolutely hated 75-grain A-Maxes!
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
|
|
|
|
Joined: Jun 2011
Posts: 1,597
Campfire Regular
|
Campfire Regular
Joined: Jun 2011
Posts: 1,597 |
I traded into a mark 1 .22 cheetah awhile back. We loaded up some 52 grainers and stepped up to the chronograph with much anticipation only to be let down. We renamed it the .22 housecat. I was only about 120 fps faster than a regular 22-250. I did have some very interesting results loading superformance powder in a 22-250 improved version though. We loaded 70 grain Berger's and superformance powder in a rifle that has a 27" barrel and a chamber half way between an ackley and a stock 22-250 case. We chronographed 3600+ fps and loaded the same brass 4 times. Never had a sticky bolt and brass was still good all the way around. We loaded up incrementally at least 6 times before we reached that velocity. I will say one thing about these high speed fast twist barrels wipe out used often is your best friend.
|
|
|
|
Joined: Dec 2005
Posts: 1,228
Campfire Regular
|
Campfire Regular
Joined: Dec 2005
Posts: 1,228 |
22-243 might be an option, get a very good barrel and life will be comparable to other fast calibers. Brass is readily available and just run it thru the die and reload. Have seen them to be very accurate even pushing 3000 rds.
"We are building a dictatorship of relativism which recoqnizes nothing as definitive and whose ultimate goal consists solely of ones own self ego and desires."Cardinal Rathzinger
|
|
|
|
Joined: Dec 2016
Posts: 25
Campfire Greenhorn
|
Campfire Greenhorn
Joined: Dec 2016
Posts: 25 |
Built our first 22-6mmAI shortly after Ross Seyfrieds article in the Rifleman (Jan 08). This was a 7 twist Douglas Stainless blank fit on a long 700 action. Results were impressive on steel to1180 yds and prairie dogs over 1000 yds. It loved 75 Amaxs and Bergers too. After about 300 shots it started taking bullets apart, about one out of four or so would make a puff of dust maybe fifty yard from the muzzle. The throat and about three inches past were very rough. Put on a new 8 twist Brux but held the same reamer back to Creedmoor length. All is well after at least 500 shots. Standard 22-250 brass headspaces perfectly but comes out with a way short neck compared to the 6mm brass. Cases are easy to make for the standard 22-6mm AI. Use a 6mm AI bushing die with the proper sizes bushing for your neck. I made a Wilson seating die with my chamber reamer. Have fun. Dale
|
|
|
|
Joined: Jul 2005
Posts: 1,785
Campfire Regular
|
Campfire Regular
Joined: Jul 2005
Posts: 1,785 |
About 20 years ago me and my nephew tried about every 22cal possible. we tried a 22-284 that is just slightly larger capacity than a 22-6mmAI........you will never get the speeds you think you will and the barrel will be half shot out by the time you work up a load. Biggest I will go ever again is a 22-250AI with 1-8" twist. about 5 times the barrel life and you give up very little velocity. Pretty much the truth. I had a .22-6mm made up in a 26" barrel, and my experimenting has lead me to using Norma MRP with 75 grain bullets. I still cannot manage less than 1" groups at 100 yds, though...not impressed thus far. In trying yet another load, I managed .890" 5 shot groups at 100 yds: R-P 7x57 cases, 50.0gr. MRP, 60gr. Hornady V-Max bullets for 3865 fps.
"I didn't realize we had so many snipers in this country." by J23
|
|
|
|
Joined: Jan 2001
Posts: 30,760
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Jan 2001
Posts: 30,760 |
T R U M P W O N !
U L T R A M A G A !
|
|
|
|
Joined: Jul 2005
Posts: 1,785
Campfire Regular
|
Campfire Regular
Joined: Jul 2005
Posts: 1,785 |
tikkanut:
Undetermined as of yet. Currently my rifle has 200 rounds down the pipe.
"I didn't realize we had so many snipers in this country." by J23
|
|
|
|
441 members (1badf350, 1eyedmule, 10gaugemag, 17CalFan, 12344mag, 10gaugeman, 55 invisible),
2,659
guests, and
1,338
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
Forums81
Topics1,191,491
Posts18,472,005
Members73,936
|
Most Online11,491 Jul 7th, 2023
|
|
|
|