Fast twist 22-250

[Doghunter23]

I was wanting to build a fast twist 22-250 for my next project probably a 1-7 twist so I can choose between 90 gn a-tip SMK or VLD. My question is what kind of velocity have you guy's seen? There is very little info that I have seen out there. Hodgedon only has info on the 80gn Pill- which was very disappointing! they claimed just over 2900 for a 80 grain? Doesn't seem right to me.
I just put some Varget in a 223 under a 75grain ELDM and got 2830FPS out of a 20'' AR!
The speeds looked much better for the 22-creedmoore, should I just go that route?
I don't think it would be worth all the expense if I can't improve much over the 223.

 

[dustbag]

I ran 88 grain ELDMs out of a 6.5 twist 22-250 over 3200. I don't remember what they topped out at. I'll try to look back on powder speed etc

Edit: initial pressure test topped at 3191 compressed after broke in settled at 3215
H4350 28" Bartlein

 

[westexhunt]

I did 22-250 for years, Ackley version as well. Now I've got 4 22 Creedmoor's. Brass availability is the main reason. It's the easy button. I run 8 twist in all of them and mostly 80 gr eld-m. I've run 90 gr berger and jlk as well as 88 eld-m in all of them with no stability issues. 3200 fps without pushing it.

 

[DUCKMAN11]

I was wanting to build a fast twist 22-250 for my next project probably a 1-7 twist so I can choose between 90 gn a-tip SMK or VLD. My question is what kind of velocity have you guy's seen? There is very little info that I have seen out there. Hodgedon only has info on the 80gn Pill- which was very disappointing! they claimed just over 2900 for a 80 grain? Doesn't seem right to me.
I just put some Varget in a 223 under a 75grain ELDM and got 2830FPS out of a 20'' AR!
The speeds looked much better for the 22-creedmoore, should I just go that route?
I don't think it would be worth all the expense if I can't improve much over the 223.

I'd go 22-250AI if you were going to spin up a new barrel. If for no other reason than not having to trim brass.

Like others have mentioned......22creedmoor is the easy button to do what you are looking to do.

 

[MagnumManiac]

I get 88g CC to over 3300fps in a 7" twist 30" barreled 22-250AI. 3200fps is feasible from a 22-250.
3400fps with 77g CC. 3300fps from a 22-250 is feasible.

BTW, I don't trust Hodgdons data, most of it is generated prediction and not real pressure tested…
At least not the Extreme line, it is made here and data is exactly as what I said.

Cheers.

 

[LTH181818]

I was wanting to build a fast twist 22-250 for my next project probably a 1-7 twist so I can choose between 90 gn a-tip SMK or VLD. My question is what kind of velocity have you guy's seen? There is very little info that I have seen out there. Hodgedon only has info on the 80gn Pill- which was very disappointing! they claimed just over 2900 for a 80 grain? Doesn't seem right to me.
I just put some Varget in a 223 under a 75grain ELDM and got 2830FPS out of a 20'' AR!
The speeds looked much better for the 22-creedmoore, should I just go that route?
I don't think it would be worth all the expense if I can't improve much over the 223.

I get 3100 FPS from my 22-250 1-7.5 twist with 88 gr EDL-M's. You have to judge if it's worth it.

 

[Doghunter23]

I ran 88 grain ELDMs out of a 6.5 twist 22-250 over 3200. I don't remember what they topped out at. I'll try to look back on powder speed etc

Edit: initial pressure test topped at 3191 compressed after broke in settled at 3215
H4350 28" Bartlein

Thats really cooking, a lot more like I would think it should be running. How was the accuracy?

 

[dustbag]

Just under 1/2" at 100. 5 shot groups. Might be on me though. It was the first barrel I chambered myself. So? Gunsmith friend said the 6.5 twist would probably start tearing them up at that speed once the throat erodes. FWIW

 

[Doghunter23]

I get 3100 FPS from my 22-250 1-7.5 twist with 88 gr EDL-M's. You have to judge if it's worth it.

What barrel length? I don't have a light weight rig so I was thinking maybe 26 or 28 inch carbon fiber barrel and either carbon stock or lightweight folding chassis.

 

[LTH181818]

What barrel length? I don't have a light weight rig so I was thinking maybe 26 or 28 inch carbon fiber barrel and either carbon stock or lightweight folding chassis.

24" off a model 7 Rem action. Never weigh it but probably under 7lb's with Swarovski Z5 5-25X52P.
Consider the spin of your bullets when you choose the 7 twist, much more spin than the .223. For your reference 22-250 AI is very close case capacity to the 22 Creedmore. There is much more info on the Creedmore.