.224 75s at 3200fps from an 18” barrel

[xswanted]

Does anyone have a suggestion that would satisfy this combo?

22-250ai?
22x47?
22-243?

Any experience with any short barrel “big” 22s, heavy bullets and what powder?

 

[steve123]

My friend has a 22" 6x47L that gets 3025 fps with 105's.

Of those you mentioned the x47 case can handle higher pressure no problem.

I'd say yes because it's common for 22 Creed to get 3400-3500 fps in a 26" barrel with that bullet.

Actually it'd be a good idea to just use 22 Creed head stamp to begin with to avoid the hassle of necking down and fireforming.

 

[284winner]

Does anyone have a suggestion that would satisfy this combo?

22-250ai?
22x47?
22-243?

Any experience with any short barrel “big” 22s, heavy bullets and what powder?

All 3 will more than likely get it there.

 

[simo hayha]

Don't forget 22bra

 

[xswanted]

Any powder suggestions?

I run R17 in my 22-250ai now with a 26” barrel at 3450.

I wonder if it’d work as well in the shorter barrel?

 

[284winner]

Any powder suggestions?

I run R17 in my 22-250ai now with a 26” barrel at 3450.

I wonder if it’d work as well in the shorter barrel?

You will lose about 100+ fps going to an 18". Still outperforming the standard 22-250.

 

[John from MN]

I've done an 18 inch 22-250 AI 8 twist. It was spooky accurate just shy of 3000fps with 75 grain amaxes. That particular barrel made pressure before I could get to the next node up. I only tried H4350, H4831, and H1000. I don't recommend drawing any conclusions from a single example. Just passing along my experience.

 

[xswanted]

I've done an 18 inch 22-250 AI 8 twist. It was spooky accurate just shy of 3000fps with 75 grain amaxes. That particular barrel made pressure before I could get to the next node up. I only tried H4350, H4831, and H1000. I don't recommend drawing any conclusions from a single example. Just passing along my experience.

Thank you, how fast did you get up to?

I’m hoping I can do 3200 with the short barrel

 

[B23]

Even with a 22-243. you'll be standing on it fairly hard to get to 3200fps from a 75 grainer out of a 18in. tube.

With a 18in barrel and the 75's, 3000-3100fps is a more reasonable expectation without getting into redline pressures.

 

[B23]

I've done an 18 inch 22-250 AI 8 twist. It was spooky accurate just shy of 3000fps with 75 grain amaxes. That particular barrel made pressure before I could get to the next node up. I only tried H4350, H4831, and H1000. I don't recommend drawing any conclusions from a single example. Just passing along my experience.

Give RL26 a try, it could very possibly gain you an extra 100fps over the others.

 

[John from MN]

Thank you, how fast did you get up to?

I’m hoping I can do 3200 with the short barrel

If memory serves, it was around 3100 fps.

FWIW, I didn't and still don't consider it a failure. It was extremely accurate. I burned that tube up over the course of a year and had a hell of a good time doing it. If I had it to do over I'd probably go with 20 inches. Even with my can it would still come in at 27 inches, which would work fine for me.

There are a bunch of other powders out there that I could have tried. Please keep that in mind. Also could have been a slow tube. It happens.

 

[xswanted]

If memory serves, it was around 3100 fps.

FWIW, I didn't and still don't consider it a failure. It was extremely accurate. I burned that tube up over the course of a year and had a hell of a good time doing it. If I had it to do over I'd probably go with 20 inches. Even with my can it would still come in at 27 inches, which would work fine for me.

There are a bunch of other powders out there that I could have tried. Please keep that in mind. Also could have been a slow tube. It happens.

Thank you!

Great info there.

I’m running 3450 with a 26” tube and hoping 3200 is doable with an 18.

Like you said though even a 20” wouldn’t be so bad with the can.

 

[snert]

220 Redline and reduced loads.....

 

[John from MN]

220 Redline and reduced loads.....

That would be quite a show at sunset.

 

[boltfluter]

220 Redline and reduced loads.....

Can you say flame thrower!! Way to much powder for a short barrel! 22-250AI would be my personal choice. + or - 100 fps really won't make that much difference. Sounds like a fun project!

Paul

 

[xswanted]

Can you say flame thrower!! Way to much powder for a short barrel! 22-250AI would be my personal choice. + or - 100 fps really won't make that much difference. Sounds like a fun project!

Paul

My 22-250ai is near the end of its life.

I may have to have the gunsmith chop it off and have an experiment

 

[cath8r]

I was getting around 3150 fps in a 22.5" 8 twist in straight up .22-250. H4350 and a 75gr amax.

 

[Forward543]

Getting 3000 fps from 75s in a .22 spc in a 20" barrel. Xbr.

 

[Zero333]

No love for the 223wssm ?
I know brass is not the best, but 3,200 fps with 75's out a 18" barrel should be fairly easy with several powders.

22x47 Lapua is probably the most ideal because of the brass.

You can also do 22 Creedmoor. You can call Alpha Munitions and ass when they'll be making 22 creed brass again.

22 Dasher maybe ?

 

[22BRGUY]

Does anyone have a suggestion that would satisfy this combo?

22-250ai?
22x47?
22-243?

Any experience with any short barrel “big” 22s, heavy bullets and what powder?

Do you have a specific objective other than just the velocity?