So .. .22 Creedmore in an Ar10

[Wolfdog91]

Long story short thought .22 Creedmore seemed cool. Heavy weight .22 cals going really fast , and all that and and yes I know if you just get a custom fast twist .22-250 ......but since I don't have a gunsmith locally and I kinda didnt wanna wait 3-10 weeks for a custom barrel I just tossed the idea on the back burner till someone dropped a semi affordable creed or fast twist 250 barrel .... Well SHAW dropped there 1:8 .22 Creedmore AR10 barrels first so yeah . Was like $240 shipped from there black Friday sale


Decided to just do a barrel swap with my AR10 so all I bought was the barrel , a muzzle break , bullets since I'm about out of heavier stuff , and dies

So here's the barrel . Idk what to think anymore because I used to be told shaw was pretty good but now I'm getting told if I want something half decent I gotta go with McCowgen bar minimum.... Idk I think people just move the goal post every few months to feel better about their credit card debt or something..... Most of my builds are running $80 to $130 barrels and they out shoot a lot of these jack wagons I see on Facebook talking like there experts and the like so idk .
Anyhow looks pretty nice out the box , good packaging

 

[Wolfdog91]

As far as the "build" .... Egh if y'all seen any of my past posts it was basically that , just took apart my BCA 6.5 creed side charger, slid the new barrel in with a little of that green loctite retaining stuff on the extension to bed it like I did on my .22 ARC and just threw everything back on. This barrel uses the same ....well everything really my creed did so yeah 10min total once I got the tools out

And I had I completely forgot to buy some crush washers for the muzzle break and couldn't find any that fit so I just went and got a lock washer from he hardware store.not perfect but it worked

Far as reloading stuff . Got some hornady 75's and a box of these 77gr factory seconds . Eveyone's been talking me there just cosmetically off looking SMK and they usually shoot just as good so I said why not . Lee dies and starline 6.5 creed brass .. because apparently it's stupid easy to form .22 creed brass from this stuff and I wanted to try it .... Also I may have removed the .22 creed from the cart instead of this when I was ordering lol.. either way there we go....

 

[White Eagle]

very nice
enjoy it

 

[Wolfdog91]

As far as the barrel : was very nice imo. Definitely better then my usual fodder lol...and for the price I'd hope so.
So some pictures right out the box

And some cleaning ... Didn't take a ton really

 

[Wolfdog91]

Side note , had to be reminded why have different bags for the same caliber. Picked up some different patches then us usual and I swear I was about to break my cleaning rod. TIGHT fit . Was actually about to cut them down a little before I thought to use a different jag which worked a lot better
Anyhow she cleaned up pretty nice imo

 

[Wolfdog91]

So , brass forming. I actually kinda enjoy it lol. Remember when i first saw people messing with .22 creed when it was still more of a wild cat ,people legit just ran 6.5 into a .22creed die and boom , done . Asked around and had some swear I needed a bushing die and some other stuff but just kinda settled on the stand by I've been doing for some other conversions like 5.56 to 17-5.56 KAK or 6.5 Grendel to .22 ARC. Just pop the expander out of the original cases die , run it in that to knock the case mouth and neck size down a bit and then into the new cal die. So 6.5 Creedmore die with decapping and expanding rod removed.
6.5 creed brass

Before

After

And all 50 done


Was also told I should really measure the case thickness around the mouth to make sure it's not too thick.... Was never told what would be good or bad but according to Google I'm good

 

[Wolfdog91]

And now to neck these down

Aannnnnd yeah very first one

Bit of a amateur move to not make sure the inside of the case necks where lubed so little bit of that and


After that lil deal went pretty easy

 

[White Eagle]

Alpha makes some good 22 Creed brass
I like the SRP stuff myself

 

[Wolfdog91]

Alpha makes some good 22 Creed brass
I like the SRP stuff myself

True eveyone been telling me how good it is but man that price tag

 

[Wolfdog91]

Out of curiosity of how little prep you really need to do I just went and got a few pieces of range brass straight out my pick up bucket, wiped them off little with my shirt , lubed them the same way and they worked perfectly


Wet tumbled and dried them after this then gave them all a little trim

And the. A little test fit..just fit them in the bolt and slid I in the chamber . Since I don't have any fireformed brass to take measurements off if I'm basically just making sure these fist in nice and easy..and they do

 

[Wolfdog91]

And to find where the bullet hits the lands I just did my usual and made a lil split case . Also just using your the rest of these RMR 69gr BTHP's since I'm honestly just trying to use them up


As far as powder I got a can of super formance because it had the widest use range for different weight bullets

 

[Wolfdog91]

Aannnd very first shot. I'm just looking for functionality. So have two in the mag. Racked one and



So it did fire and chamber the next round but holy crap. Now a lot of that was oil burning off but still .
Pull out the next round. That chambered and it's a lil scuffed up

 

[Wolfdog91]

This is that next round and this is why I video my builds. When you able to slow stuff down and show the video to more knowledgeable people it really helps. So like I said last round. In the mag , racked it and really I'm just checking for last round hold open
Check the fire ball out on the muzzle though



Now look at the case as it's being pulled out the chamber it came out the mouth flipped around point at me , hit the back of the inside of the receiver and bounced back laying flat on the mag.... I honestly had NEVER seen this . But I got a last round. Hold open so ...hmmm

 

[Wolfdog91]

Went and fired the last three rounds and also had this happen. Round fired , ejected, again case mouth pointing at me , you can see the other round getting picked up but the bolt doesn't close all the way



And looked in to see the round in the chamber but the bolt dint catch it ...weird but re racked it and it fired

And for the one ejecting it was kinda all over but mainly like a 1-3 0clock

 

[Wolfdog91]

And just a quick look at our brass. As far as I can tell no real signs of pressure but they all have these marks on the same side and and out the same area of the case .



And safe to say I sized them enough because check out the difference on these shoulders from unfired to fired....but don't have any factory ammo to get measurements off of fired brass so what can ya do

 

[Wolfdog91]

so at this point I decided just to mess with some loads because I'm thinking. Due to the ejection pattern and the fact I'm not showing pressure, maybe I'm just not giving it enough gas somehow . And I'm still on the lower end of the load work up so that's what I do aannnndd Evey few rounds I'm getting basically this

At this point I know I'm giving it enough gas I'm slinging a 69gr bullet at 3300 off feet a second for goodness sake. So start looking around and the only thing I could really find was ole Ed over on YouTube. He has a 22 Atomizer wild cat which is basically a .22 creed AI and he end up doing some stuff with the spring, the ejector and drilled out the gas port.... buuuut..... Idk something just didn't feel right

So before I did all that posted a video over on the AR10 deal on Reddit and let me say, the AR10 community is sooo much nicer to deal with a a whole then the AR15 guys lol. Like a lot of these guys actually know stuff past " you need to spend more money " it's like a real old school mechanic vs a glorified parts changer .. anyhow posted the video and a one guy in particular sent this saying basically if it's sufficiently OVER GASSED it will seem like it's under gassed . Basically it's getting so much dang juice and the bolt is moving so fast it's not open long enough for the brass to get out a lot with not being able to hold it long enough

So went on the YouTube and looked at some videos of over gassed AR10's and YEP looks to be exactly what I'm dealing with

And apparently this is why a rifle +2-5" gas system would have made life so much better buuuuut I just bought what shaw had so we gotta work the problem like back in the olden days when you couldn't just get the best of the best all the time .

So some of my options where to use a heavier buffer set up , heavier BCG or and adjustable gas .... Well all I had on hand was that adjustable gas block I tried on another build and don't like so tossed it on. Used my bore scope to make sure it was properly aligned as well along with just BARELY cracking it open....maybe 1/4 of the way

 

[Wolfdog91]

Ok so last 8rd of prepped brass. So loaded it all up and


I'm not gonna say it word perfectly but don't get one failure all laned in about the same area at around 3'0 clock not gonna. Say it's fixed but we went from a jame every three to eight rounds with no issues soooo doing something right.
Can kinda see the brass pile here

 

[mic2377]

I also would not chalk your ejection issues up to just over gassing or under gassing. Ideally you could dial the gas appropriately and it will run reliably.

I have experienced some of the failure to eject issues you had with an older CMMG bolt, even when the rifle was gassed appropriately. This was 100% resolved when the bolt was swapped to a JP.

Other large frame AR's have optimized other aspects, IE LMT uses a dual ejector bolt and a pretty stiff extractor. I have MWS barrels in 243, 260, and 308, and the 243 barrel (the closest to your 22 Creed) has never had any ejection issues evenly though LMT's tend to be fairly aggressively gassed.

Whenever I want to tune an adjustable gas system I start with it fully closed, and open slowly until it will 1) eject, and 2) achieve bolt hold open. I have also had a severely over gassed situation mimic the round left on top of the mag too.

 

[Shotafterdark]

so at this point I decided just to mess with some loads because I'm thinking. Due to the ejection pattern and the fact I'm not showing pressure, maybe I'm just not giving it enough gas somehow . And I'm still on the lower end of the load work up so that's what I do aannnndd Evey few rounds I'm getting basically this
View attachment 1721599
At this point I know I'm giving it enough gas I'm slinging a 69gr bullet at 3300 off feet a second for goodness sake. So start looking around and the only thing I could really find was ole Ed over on YouTube. He has a 22 Atomizer wild cat which is basically a .22 creed AI and he end up doing some stuff with the spring, the ejector and drilled out the gas port.... buuuut..... Idk something just didn't feel right

So before I did all that posted a video over on the AR10 deal on Reddit and let me say, the AR10 community is sooo much nicer to deal with a a whole then the AR15 guys lol. Like a lot of these guys actually know stuff past " you need to spend more money " it's like a real old school mechanic vs a glorified parts changer .. anyhow posted the video and a one guy in particular sent this saying basically if it's sufficiently OVER GASSED it will seem like it's under gassed . Basically it's getting so much dang juice and the bolt is moving so fast it's not open long enough for the brass to get out a lot with not being able to hold it long enough
View attachment 1721601
So went on the YouTube and looked at some videos of over gassed AR10's and YEP looks to be exactly what I'm dealing with
View attachment 1721609View attachment 1721610
And apparently this is why a rifle +2-5" gas system would have made life so much better buuuuut I just bought what shaw had so we gotta work the problem like back in the olden days when you couldn't just get the best of the best all the time .

So some of my options where to use a heavier buffer set up , heavier BCG or and adjustable gas .... Well all I had on hand was that adjustable gas block I tried on another build and don't like so tossed it on. Used my bore scope to make sure it was properly aligned as well along with just BARELY cracking it open....maybe 1/4 of the way
View attachment 1721612View attachment 1721614

so at this point I decided just to mess with some loads because I'm thinking. Due to the ejection pattern and the fact I'm not showing pressure, maybe I'm just not giving it enough gas somehow . And I'm still on the lower end of the load work up so that's what I do aannnndd Evey few rounds I'm getting basically this
View attachment 1721599
At this point I know I'm giving it enough gas I'm slinging a 69gr bullet at 3300 off feet a second for goodness sake. So start looking around and the only thing I could really find was ole Ed over on YouTube. He has a 22 Atomizer wild cat which is basically a .22 creed AI and he end up doing some stuff with the spring, the ejector and drilled out the gas port.... buuuut..... Idk something just didn't feel right

So before I did all that posted a video over on the AR10 deal on Reddit and let me say, the AR10 community is sooo much nicer to deal with a a whole then the AR15 guys lol. Like a lot of these guys actually know stuff past " you need to spend more money " it's like a real old school mechanic vs a glorified parts changer .. anyhow posted the video and a one guy in particular sent this saying basically if it's sufficiently OVER GASSED it will seem like it's under gassed . Basically it's getting so much dang juice and the bolt is moving so fast it's not open long enough for the brass to get out a lot with not being able to hold it long enough
View attachment 1721601
So went on the YouTube and looked at some videos of over gassed AR10's and YEP looks to be exactly what I'm dealing with
View attachment 1721609View attachment 1721610
And apparently this is why a rifle +2-5" gas system would have made life so much better buuuuut I just bought what shaw had so we gotta work the problem like back in the olden days when you couldn't just get the best of the best all the time .

So some of my options where to use a heavier buffer set up , heavier BCG or and adjustable gas .... Well all I had on hand was that adjustable gas block I tried on another build and don't like so tossed it on. Used my bore scope to make sure it was properly aligned as well along with just BARELY cracking it open....maybe 1/4 of the way
View attachment 1721612View attachment 1721614

Omg
The minute I saw that guy actually increasing the gas port ..
I laughed .
Wtf kinda idiot doesn't realize the pressure already created by a massively over bored round is already needing a superlative arms gas block to decrease and manage it ?

Buy a superlative arms gas block

 

[Shotafterdark]

very nice
enjoy it

I'm glad i'm glad to see you're enjoying that barrel.I just purchased two of them and built up two coyote rifles

Do yourself a favor and buy a six creedmore sizing die

That way you could use 308 brass, use the six first then the six point five and then the twenty two


And you will not have any issues with your brass

Buy some pure lanolin and a bottle off of amazon and put it in a spray bottle with isopropyl alcohol and shake it up really good.And spray your brass with that.And you will not have any issues


I worked up a starter load, and I was shooting half m o a so those barrels are fully capable