Welp looked around the gun room and in the parts bucket a while back and saw I had enough parts to toss together a new upper without buying much new .


And decided to see what all the fuss was about when it came to the " new " .22 ARC....

And No the concept isn't new ..... Yes ,its roughly just a Sammi spec'ed .22 ppc/.22 coyote/.22 Grendel....y'all get the picture. Yeah you can make some arguments about shoulder angles and what not Hornady goes into a lot of details on there podcast.....but eghhhh.... Basically 6.5 grendel necked down to shoot heavy weight ..22 cal bullet out of a short action or mainly now an AR15.... I've built and played with the 6.5 Grendel , the 6mm Arc , so why not this lil dude ..... Alot of people also keep saying it's the closest thing you'll get to a 22-250 out of a SMALL FRAME so thought it would be neat to have both to compare.

Anyhow it's 3a.m I can't sleep and not trying to wake the wife up so, just another one of my rambling lil posts for y'all who enjoy them .

So the core of this lil build is gonna be this 20" barrel from BCA ... They had a free shipping deal on all barrels so almost had too lol


Funny enough this is about the same barrel as my .22-250... Well except for the twist rate and chambering of course . But out the box it's .... Well it's a $100 barrel threads where a little out and it don't seem to have all the oil and grease the last few I got had but hay









And a few shots of inside the barrel out the box







And cleaning . The rows left to right are wet patches of hoppes ,dry patches , patches with JB bore paste, short stroked all the way though the barrel , dry patches , hoppes wet patches ,dry patches , then two alcohol patchesand imo cleaned up pretty good , still a few little spots but most of the barrel is mirror shiny now

Now that that's don can start with assembly with the help of my real avid kit

So doing something a little different... Usually I'll grease the barrel extension to help it from locking up and becoming a pain to remove....buuut been reading and chatting with more and more " precision" AR builders and a lot of them will "bed " the barrels to the receiver in some way. I've seen thermo fitting withwrw the upper is hated the barrel is cooled so thh have a rock solid fit when they come to temp after assembling. I've seen one guy use a thin layer of JB weld on the extension and a crap load of release agent in the upper , kind alike how you do with a bedding job on a bolt gun. Some guys even just use nail polish..... Well apparently 620 green loctite is across the board agreed to be a pretty decent deal to use ..so


This upper is pretty tight so pretty sure I don't need this stuff but hay ... experiments ! And no one really say how much to use but you need to use a torch to get it off regardless so I just send a bush to give it a thin layer and spun the barrel as I put it int he upper to spread it out .. hopefully evenly.

The the usual AERO shell grease on the threads for the barrel nut



Then torque down the nut.... These thing can have torque rating from 30-80lbs across the board if theres no manufacturer specs...and I don't even know who made this one so just gonna go to 40-50lbs



Now that's on just gotta slap on the gas system, which I had to assemble. Actually bought this adjustable one from gendel Hunter.com.for my .22-250 but since it works it's just been on the shelf... End up it for. Come with the roll pin I need so had to steal it off another old gas block


Slapped that on and stole the BCG out my 6.5.grendal since .22 arc uses the same bolt face and yeah gonna run it in my all purpose lower


And gotta give it a function test before a paint job but other then the scope new upper is done .

6.5mm is 0.255. 6mm is .236. Both are within a credit card thickness of .22 already.

Be cheaper to wake her up...

But this one is faster-er

I wanted one but realized I really didn’t “need” one. I went with a bolt action .243 instead as a primary coyote rifle. Maybe if I lived or hunted a different part of the country I’d go to “needing” one.

Shoot I don't need 90% if my collection

I have to “justify” it to myself before I start dropping money on things. I have a LOT of wants, lol, but very few needs.

Looking forward to the report on this one

Man, that gas port would drive my ocd off the rails.

Would have posted more but been at a fair with the wife and in-laws all day....but stuck at the house with no ride tomorrow so I'll have time to play with it , and that .22-250 again . But got bras prep all done played with forming some brass from 6.5 grendel and 7.62x 39

Think that one's bad look at the knee in the 22-250 from a moth ago

So brass ... Was thinking of buying 6.5 grendel and forming it but .22 arc wasn't much more so


And I don't have any factory ammo this time so gotta try and figure some stuff out... Mainly just need to see how much I need to resize the brass...but after doing a lil fit test with a life out the box.... If chambers with 0 resistance
.. I just fit a piece in the bolt and slide it in. Press the BCG in with my thumb till it clicks in place. Shouldn't take any real effort. If it does it's too big and these are good out the bag





Still went and full length refused just to be safe though. I'll do more when I actually get some fire formed cases



And un sized vs sized


Anyway size then all wert tumbled and tossed them in the oven before trimming and all that ...pretty cut and dry but .... Saw I had some old Grendel brass on the bench so.....


And everything I've seen is ya just use a good lube and run it in the ARC die



So lil imperial



Little bump in



All the way


And got a bit of a roll at the bottom on the neck ..realized I'd have to get the die down a little.more



Alrighty


Aannnndd fits perfectly



So went and made up 10 of them just because


Also had some 7.62x39 on the bench , and since folks used to use that to make Grendel .....


Yeaaahhh but too big of step down , had to go 7.62x39-6.5 grendel -.22ARC
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Worked but the shoulder would need to be fire formed and blown out ... I guess
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