- Thread starter Yoteski
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When I've necked down 6.5 G to .22 cal I ended up with wavy necks and had to expand from the inside and neck turn a skim pass to even it out. So well done on your efforts.
I saw the link to Unitah Precision, but is there anything else currently in stock for barrels are uppers?
Not that im aware of. My Uintah upper shipped yesterday, should be here by the end of next week
Royals case lube is the ticket! Its the best by far of any case lube i have ever used. It honestly didnt feel any different necking down the 6.5 brass then sizing the 22 arc brass.
Which raises the question, neck down 6.5 Grendel or buy new?
If new, from who?
If new, from who?
I used three sizing dies and a mandrel in a 650 toolhead to convert all my 22G brass. Annealed them first. Then ran them thru two neck sizing, a final undersize neck/ headspace, and a mandrel to push all the ugliness to the outside. Ran 300 cases through at once. And then sat down to neck turn them with a Lee shell holder lock thingy on a hand drill and a Forester turner. Then annealed them all on an AMP again.
That's a pretty conservative factory load. Nothing wrong with that. Pretty much the same performance speed and bullet wise as a long barreled 223 bolt gun. I'm betting you'd be looking at 3000 - 3100 with reloads. Your barrel probably still has some speeding up to do as well
Agreed. You get any belling on the mouths? I've gotten that in the past when necking down. Hard to tell from the photos. This one looks like it might have some?
I believed that is just from going to far back up after i seated the primer. So the top part of the neck slightly touched the expander ball again.
I get it when necking down cartridges and I'm going more than one caliber down. Without using expander balls, just bushings and mandrels. I can't explain why it happens. Have yet to figure it out. Just look like you were getting a little bit of that as well. That's part of what I neck turned off my 22G brass. If I had to guess without measuring I would say it's the growth that is created when squeezing the neck down
Nice! That'll definitely do.
You are correct. After closer inspection the necks are belled slightly. Dont seem to affect anything so far.
I have to imagine that would kill the neck clearance in your chamber. I think it will definitely rectify itself after the first firing and you won't have issues with it anymore. Maybe it's just on the list of artifacts that get cleaned up by fireforming the first load.
That'll fix the problem faster than neck turning will. Have you checked OAL case length against a print to see if you need to trim?
No i have not.
Let us know how it shoots!
Would you mind weighing the upper for me?
I just spoke with Rainier Arms. They have 22" 22ARC barrels in stock and will have 18" non-fluted barrels coming in stock in a few weeks. Both are Ultramatch series. I don't know of anyone else with them in stock; Uintah Precision has them but $1k+ is a lot of money for a standard upper build.
Anyone know ht
10-12 week lead time per their website.
Does anybody have 22arc barrels in stock? That aren’t super heavy, over gassed and pricey?
I just checked Rainier's website, they haven't added any .22 ARC items to the site yet, looks like you'll have to pick up the phone at the moment.
The "Site Search" box at the top didn't turn up results when I checked.
Rainier is still in the office, they're on pacific time, so it's not 5:00 PM Yet.
That's my story, and I'm sticking to it...
Rainier is still in the office, they're on pacific time, so it's not 5:00 PM Yet.
That's my story, and I'm sticking to it...
The 22arc barrel on Rainier's site could only be found by googling it. I talked with them and they're aware, they said they're working through some website fixes right now.
Yeah I saw those, but an 18" barrel with mid gas sounds like a rough shooter.
I have a 22" from Rainier on the way. And 100 rds of 88 ELD-M so I can break it in and fire-form some brass.
Need some 62gr ELD-VTs to load. Where are they?!?
Opinions on using any of the 62-70gr T-REX offerings from Maker in the 22 ARC?
Need some 62gr ELD-VTs to load. Where are they?!?
Opinions on using any of the 62-70gr T-REX offerings from Maker in the 22 ARC?
I got the 20” with rifle gas. Its a pussy cat. Shoots great. Love it
We need to see your latest groups and load data
Well its -20 outside with a 30 mph wind so i aint shootin any groups now. But a kind gentlemen sent me 20 62eldvt bullets and i got then to 3300 fps with cfe 223 powder and there is more speed potential left. Also shooting the 53 vmax at 3470 fps with great accuracy.
Attachments
Good to see. Do you plan on doing any heavies?
The 22 ARC IS....the same old 22 PPC! Recycled! With a new name ...total LOL Nothing is new. Go Hornady! It was a popular benchrest cartridge many years back, just necked down 6 mm PPC...
Probably within a grain of the water capacity of the orginial.
But the 22 PPC was for bolt gun benchrest and not limited to the 50,000 psi of the AR.
It has the potential to be very accurate, but most went back to the 6mm PPC many yrs ago as the 6mm was more accurate over the long haul...probably just the Berger and other match bullets available made the difference, but the 22 PPC never made a come back. Sako even made rifles for varmints in that caliber.
The capacity is close to the 224 Valkyrie, and the Valkyrie can handle a bit more pressure in the AR platform. So it's likely a draw between the two.
For varmints I'd just use the 5.56 and load em hot, same result, and ya don't care about the brass.
The 22 Nosler has more capacity in the lighter bullets and more velocity overall, but they need to be seated out single shot when heavy bullets are used.
An old benchrest caliber renamed ...22 PPC is now a new 22 ARC, probably with a slightly shorter neck.
Probably within a grain of the water capacity of the orginial.
But the 22 PPC was for bolt gun benchrest and not limited to the 50,000 psi of the AR.
It has the potential to be very accurate, but most went back to the 6mm PPC many yrs ago as the 6mm was more accurate over the long haul...probably just the Berger and other match bullets available made the difference, but the 22 PPC never made a come back. Sako even made rifles for varmints in that caliber.
The capacity is close to the 224 Valkyrie, and the Valkyrie can handle a bit more pressure in the AR platform. So it's likely a draw between the two.
For varmints I'd just use the 5.56 and load em hot, same result, and ya don't care about the brass.
The 22 Nosler has more capacity in the lighter bullets and more velocity overall, but they need to be seated out single shot when heavy bullets are used.
An old benchrest caliber renamed ...22 PPC is now a new 22 ARC, probably with a slightly shorter neck.
22arc is a neck downed 6.5 Grendel. Dimensions are different than ppc in several areas. Same parent .220 Russian though obviously.
Capacity wise, it's in between a 6ppc and 6br.
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Ya, I mentioned this a couple of pages back. You can basically just shoot a 22 PPC for all intents and purpose be the same. Except factory brass and dies.
Don't mean to dog the 224 Valkyrie, but it was one of the most difficult bottle neck cartridges to get an AR 15 to shoot 5 shots into less than a half inch at 100 yds.
Got a new 6.5 twist barrel for 95 gr SMK, still not up to tbe accuracy task. Tear it down and investigate, the Areo Precision wasn't quite precise..Machine it. Still not getting there... center the bolt carrier in the bore...that did it!
This poceedure usually only makes a small difference...not with the 224 Valkyrie.
So the 22 ARC would have to exceed this performance with 95 gr SMK before I'd be interested.
The 22 ARC should be an accurate cartridge, it's almost identical to the old benchrest 22PPC.
Most all AR 15s can be made accurate, including the difficult 224 Valkyrie...that's my experience with it. It can shoot small 5 shot groups at 100 yds when properly set up. But so can the 22 ARC, is my guess, maybe easier, depending on the components and quality of assembly.
Got a new 6.5 twist barrel for 95 gr SMK, still not up to tbe accuracy task. Tear it down and investigate, the Areo Precision wasn't quite precise..Machine it. Still not getting there... center the bolt carrier in the bore...that did it!
This poceedure usually only makes a small difference...not with the 224 Valkyrie.
So the 22 ARC would have to exceed this performance with 95 gr SMK before I'd be interested.
The 22 ARC should be an accurate cartridge, it's almost identical to the old benchrest 22PPC.
Most all AR 15s can be made accurate, including the difficult 224 Valkyrie...that's my experience with it. It can shoot small 5 shot groups at 100 yds when properly set up. But so can the 22 ARC, is my guess, maybe easier, depending on the components and quality of assembly.
