The 22 creedmoor thread

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ACE mentions the possibility of a custom contour on their website. Not sure how that works functionally.
 
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Jake told me they’d do that for me. Not sure if he meant UM, Kampfeld or ACE. I’ll try to clarify with him to let you guys know.
Alright, just off the phone with Blaine at UM. Got my change order in for the 22 CM.
The enlarged "Bung End", as Jake describes the enlarged barrel end with 5/8x24 threads, is contoured at ACE before arriving at UM.
 

ChrisAU

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Finally got mine put together and out to shoot today. Shot it about 50 times, so much fun to shoot. Shot 4 types of factory ammo all under 1 MOA for 5 shot groups.

16.5” 1:8, last 10 shots with Factory Hornady 80gr ELD-M averaged 3022, figure it’ll settle in around 3050 or a little more. Tickled with it.

IMG_8667.jpeg
 
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Finally got mine put together and out to shoot today. Shot it about 50 times, so much fun to shoot. Shot 4 types of factory ammo all under 1 MOA for 5 shot groups.

16.5” 1:8, last 10 shots with Factory Hornady 80gr ELD-M averaged 3022, figure it’ll settle in around 3050 or a little more. Tickled with it.

View attachment 751552

That’s quick for a 16” barrel!

For anyone that considered other chamberings, did you consider 22 ARC? Factory 75 eldm is said to go 3050 fps out of 24”. Looking at the load data that is approx 29 grains of powder.

So a bit slower but the recoil is further reduced by approx 36%


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Grizzle

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Man I'm jelous of all this suppressor talk, be nice if Canada didn't have such retarded gun laws. Ordering a 20" barrel since I can't suppress it, excited to get shooting it.
 

Stocky

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If you are not suppressing 20 is too short, 22 will get you a bit more velocity and less noise
Absolutely not. If the speed you want can be reached in the barrel length selected there's no reason to step up, extra velocity on the high end gains very little. If your always in the open and want the speed go longer but 20 is not "too short"
 
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Absolutely not. If the speed you want can be reached in the barrel length selected there's no reason to step up, extra velocity on the high end gains very little. If your always in the open and want the speed go longer but 20 is not "too short"

Shorter barrels do tend to be a bit louder… not a huge difference thought because not matter what length, you need hearing protection


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ChrisAU

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Thoughts on 75gr ELD-M vs 80gr ELD-M out of 22CM for out to 600 yards for deer? The factory Hornady 80 gr ELD-M will shoot 1 MOA but it will also throw some 1.25 MOA groups while the Copper Creek 75gr ELD-M load has been consistently under 3/4 MOA for me.
 
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Thoughts on 75gr ELD-M vs 80gr ELD-M out of 22CM for out to 600 yards for deer? The factory Hornady 80 gr ELD-M will shoot 1 MOA but it will also throw some 1.25 MOA groups while the Copper Creek 75gr ELD-M load has been consistently under 3/4 MOA for me.

I honestly don't think you will see a significant difference. The 75 grain bullets gets love in the .223 thread.
 
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Thoughts on 75gr ELD-M vs 80gr ELD-M out of 22CM for out to 600 yards for deer? The factory Hornady 80 gr ELD-M will shoot 1 MOA but it will also throw some 1.25 MOA groups while the Copper Creek 75gr ELD-M load has been consistently under 3/4 MOA for me.
My barrel really settled in after I got about 125-150 rounds through it. It went from 3/4" groups to almost stacking them on top of each other.
 

ChrisAU

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My barrel really settled in after I got about 125-150 rounds through it. It went from 3/4" groups to almost stacking them on top of each other.

I gotcha, I'm at 87 now and hadn't seen noticeable velocity increases. The factory Hornady 80 has stayed at 3020ish while the Copper Creek 75's have been pushing 3100.
 
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What’s the ideal twist for 60-80 grain bullets? 1-7” or 1-8”. It will be used in Colder temps and higher elevation. 1-8” seems to be the best. But PVA recommends 1-7”.
 
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What’s the ideal twist for 60-80 grain bullets? 1-7” or 1-8”. It will be used in Colder temps and higher elevation. 1-8” seems to be the best. But PVA recommends 1-7”.

From Hornady recommendations: 1:8 for the 80, 1:7 for the 88


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I went with a 1:7 as I intend to load 80-90 bullets in mine. I may be too fast for the lighter bullets. If that is the case, I will switch to a 1:8 on the next barrel, which will about 2 years from when I get this one. :)
 

ACHILLES

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Thoughts on 75gr ELD-M vs 80gr ELD-M out of 22CM for out to 600 yards for deer? The factory Hornady 80 gr ELD-M will shoot 1 MOA but it will also throw some 1.25 MOA groups while the Copper Creek 75gr ELD-M load has been consistently under 3/4 MOA for me.
I’d see how they shoot after barrel breaks in. I’ve switched almost everything to the 80elds. For your purposes they have almost the same drops and retained velocitys out to 600 and the 80s at 600 have a tad less wind drift with more energy. I’d go with which one shoots best and if they both end up shooting well go with the cheaper option. In general either will do fine out to 600yds. Any further though and the 80s gaining the advantage in all aspects.
 

amassi

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I’d see how they shoot after barrel breaks in. I’ve switched almost everything to the 80elds. For your purposes they have almost the same drops and retained velocitys out to 600 and the 80s at 600 have a tad less wind drift with more energy. I’d go with which one shoots best and if they both end up shooting well go with the cheaper option. In general either will do fine out to 600yds. Any further though and the 80s gaining the advantage in all aspects.

Not sure about all aspects
At my velocity and elevation the 80 is exactly .1 mil less wind at 1000 yards. The 75 is .2 mils flatter to 1000. The 80 carries velocity to 1800 fps out to 825 the 75 to 810.
So inconsequential ballistic difference. Agree he should use the best shooter


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ACHILLES

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22creed 16”, 8 twist, 100yd zero
80gr eldm 3050fps
75gr eldm 3100fps
10mph 3cl
1000yds
Applied Ballistics Solver

0ft DA
75s
Drop 24.9moa Drift 6.7moa
80s
Drop 24.5moa Drift 6.2moa

6000ft DA
75s
Drop 22.2moa Drift 5.2moa
80s
Drop 22.1moa Drift 4.8moa

Shooting both out of my 16” 223rem and 20” 22arc once you start going past 600 yards it’s very obvious the 80s drift less than the 75s much more so than the calculators show. I havnt shot them side by side enough in my 22creed yet to get the best comparison at higher speeds but I would like to test this.
At 1000yds in a 22creed 16” Bbl I wouldn’t think the wind drift difference is just .1mil in a 10mph cross wind on avg, but every barrel and load is different. Going off shooting both in my 223rem and 22arc the 80s have had less drift at distance.
 
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