22 creed, 22x47L, 22 GT...... which would you build and why?

[357Mag]

Always fun to hear where others thoughts are at, lots of good suggestions in your reply!

I guess I’ll mock up some dummy rounds and see how they feed before going to crazy, this might end up going another direction if any problems arise, I’m not expecting any though.


Sean

Nakneker -

Howdy, again !


Please do keep us posted on your project !


With regards,
357Mag

 

[linebaugh]

Many of the Vihtavouri N series powders burn cooler. If you are not beating on a gun shooting competitions and rapid fire it may not matter. Rule of thumb the slower loads many times have cooler burn rates whereas the faster loads many times are hotter burning (high btu) powders.
Non-Temp stable loads can many times be quite usable if you plan to use a ballistics solver or are not planning to shoot past 500ish yards. I use non stable powders in my precision shooting sports and get by fine. I actually track the fps shifts based on temp and feed those offsets into my ballistic solver. I do the same thing with 22LR as well.

 

[nakneker]

The 22 GT brass came today. Alpha does a great job protecting brass btw, you get a 100 round case and a foam insert that snugs the brass during shipping, nice!

I loaded three 22 GT cases with 55 grain blitz kings and tried them in the BDL metal, it fed without issue. I think we are good to go. Gonna send a piece off for a reamer now. The picture with the different cases is 6 dasher (Norma brass), 22GT and a 6x47.

 

[Mark W]

I like it!!!!

 

[Allen5108]

The 22 GT brass came today. Alpha does a great job protecting brass btw, you get a 100 round case and a foam insert that snugs the brass during shipping, nice!

I loaded three 22 GT cases with 55 grain blitz kings and tried them in the BDL metal, it fed without issue. I think we are good to go. Gonna send a piece off for a reamer now. The picture with the different cases is 6 dasher (Norma brass), 22GT and a 6x47.

What bullet seater are you using?

 

[Allen5108]

Nakneker, what bullet seater are you using?

 

[nakneker]

I don’t have a 22GT seating die so I used a Wilson 6 dasher die. The neck was tight on that Alpha brass which was ok since I’m sending it off for a reamer.

 

[Phil]

I have had and still have many flavors of 224s. I have 221 AI, 223AI, 22GT, 22250AI and have had other 22250 AIs and 22BR improved. As of right now if I had a do over I would have went with the 22x47 from the beginning and never looked back. Like you I also have the 6 and 6.5x47.
If its being mag fed the 22x47 will likely feed the best. My GT has minor feeding issues as did the 22BR improved. The 22250AIs fed well but do tend to chamber hard at times due to the shoulder angle.
I would also build another 221AI in a heartbeat as it is an absolute blast to shoot.

Tell me about your 221AI, i have always wanted to do one....

 

[LoanHarvey]

My reamer just arrived, months of waiting. It is for a .224 SAUM AI. Looking forward to launching the 90's!

 

[linebaugh]

Tell me about your 221AI, i have always wanted to do one....PM me with question so I dont forget to reply. Will fill you in ln what i did and am doing.

 

[nakneker]

Reamer print done, moving forward. Reamer print is based on Alpha 22GT Brass and 55 grain blitz king, setting this one up to shoot 50-60 grain bullets.

 

[urbanrifleman]

Reamer print done, moving forward. Reamer print is based on Alpha 22GT Brass and 55 grain blitz king, setting this one up to shoot 50-60 grain bullets.

Is that 19 thou freebore?

 

[nakneker]

Is that 19 thou freebore?

Yep, set up for 55 grain blitz kings. I shoot 60 grain partitions quite a bit too when varmint hunting.

 

[Rtheurer]

Many of the Vihtavouri N series powders burn cooler. If you are not beating on a gun shooting competitions and rapid fire it may not matter. Rule of thumb the slower loads many times have cooler burn rates whereas the faster loads many times are hotter burning (high btu) powders.
Non-Temp stable loads can many times be quite usable if you plan to use a ballistics solver or are not planning to shoot past 500ish yards. I use non stable powders in my precision shooting sports and get by fine. I actually track the fps shifts based on temp and feed those offsets into my ballistic solver. I do the same thing with 22LR as well.

Linebaugh
Please dont take this as an attack on your statement above as that is not my intention. I think this Forum is of the highest caliber on the internet and on here are some of the best minds in the game who are willing to share freely some of that experience and Knowledge.
With that being said I highlighted a couple of Sentences above that are incorrect and is pretty common to share as the old he said She said with out any actual knowledge or old wives tails as its also been known to be called. I am personally right along with this last statement at times, so I also am not immune to that. Guilty as charged. LOL
Vithavouri N Series.. Well that pretty much all of the rifle powders. I believe what you meant to say was the 100 Series in contrast to the 500 series Double based powders. Its funny once a guy get's the Quick Load program you discover that the N100 series powders have some of the industries lowest Heat Explosion Potential and on the exact same Burn rate the N500 series powders have the industries Highest Heat Of Explosion. Take N140 vs N540 for Example. Two Burn Rates that are very close to each other, one is much cooler while the N540 is one if not the highest Heat of Explosion. Yet have a close approximation of Burn Rate Same thing with slower burn rate powders having a Lower Heat of Explosion ( BTU is incorrect but a good way to explain it) is also not true. There are many many slower powders out there that have a very high Heat of Explosion, so i dont feel you can blanket statement that type of information. There is more than one thing to make the above statement true to include Pressure curve and how the Manufacture can add Retardants to the powder to change how that powder burns.... there for changing the pressure curve.
I dont know alot of things... I dont want to come off as that guy, so i will tell you there are a ton of folks out there that know whole bunch more than me. I am not a Scientist or Chemist.
Hope this finds you all well. Shoot em in the middle.
Russel

 

[RAG]

Yes - If I were looking for something stronger than a 223AI then and want to stay within a AR15 platform then I would probably just go to the Grendel/Arc cartridge and forgo the 22-204. or 222 Rem Mag. The 6Arc is going to do wonders for gaining attention for the Grendel based cartridges.

I love the 22 Creedmoor that I built a couple years ago. I've only shot the 75 gr A-Max / ELD-M bullets out of it, but it'll push them right at 3500 fps out of a 20" suppressed barrel. Knowing that barrel life was going to be on the short side, I just ordered two barrels for it when I started the build. When I shoot the first one out, I'll order a third barrel.

I'm building a new 223 bolt action to shoot the 75 & 80 gr ELD-M bullets, so I'm going to switch to the 88 gr ELD-M bullet's on the 22 Creedmoor and see how they do.

3500 is good considering barrel length. If I build, I'm hoping for 3500 olwith the 80 ELD-M, but I would run 28" tube.

However, yesterday I found report of someone who couldn't achieve desired velocity with Peterson or Alpha brass due to their having less case capacity.

What brass are you using?

 

[Txhillbilly]

3500 is good considering barrel length. If I build, I'm hoping for 3500 olwith the 80 ELD-M, but I would run 28" tube.

However, yesterday I found report of someone who couldn't achieve desired velocity with Peterson or Alpha brass due to their having less case capacity.

What brass are you using?

Starline 6mm CM brass necked down to 22 CM.

 

[WSMNUT]

The rifle is done and ready for a plane ride back to Arizona. I asked Sean if he would let me keep it and he unfortunately said no.

Here’s the build info
Trued the 700 action (older pre letter prefix)
Not the one from the original post
Added a PTG Firing pin
Threaded the bolt handle and installed a knurled bolt knob. I cut down the test round and epoxied it into the knob
Added a PTG recoil lug
TriggerTech Trigger
Bedded the action to the Mesa Altitude stock
1-9” Lilja #2 barrel
Threaded 1/2-28 with a blended thread protector
Cerakoted black
There’s a couple of pictures of the lands and grooves cut with Sean’s new JGS reamer.
I love JGS reamers.

I have several more pictures of the build as we were doing it. I always try to send pics out while the work is happening. It doesn’t always work out but I try. I could only upload 6 pictures to the post

 

[WSMNUT]

A few more pictures of the build

 

[nakneker]

Dang Zack, rifle looks great! We’re spoiled with the quality of gunsmiths on this forum! This is my second rifle with a Zack and if it shoots as good as the 6x45 I just had made I’ll happy happy! Zack is a fun guy to work with and I get why he has so many guys using him. He updates you often, send progress pics, asks question, gets the details sorted and does so with a smile. I’m sure I’ll do more, I just ordered an Defiance Anti X for a VarTarg.

Btw I had JGS make the reamer for this rifle. Freebore is set up for lighter bullets, 55-60 grainers. I have other rifles that shoot the heavies but this will be a calling gun and most of the shots will on the closer side, plus I like using those smaller bullets at times, variety is the spics of life. The reamer is now Zack’s if any of you are interested.

I think that bolt needs to get sent out to Boltfluter so he can work his magic.

Thanks again Zack, pleasure working with you!

 

[xswanted]

Build all three.

A guy can't have too many overbore 22 cal rifles.