22-250 AI ELDM 88gr

[Andrew Cowling]

Interested in this cause I am building the same thing but with a 28 inch barrel and using slower powder with the 88gr eldm. Not sure now after reading this weather to stick 22-250 or go the AI route.
How are you finding the feeding of the AI case?

 

[just_jon]

I've shot the 52 grain ELDM out of my 22-250AI at 4300 fps with zero issues. Suggest you verify your actual twist rate. You may not have you think you have.

 

[JLM8401]

I run all the Bullets you mention in my 22-250 1-7 twist. Never had an issue. I believe you have a problem with your barrel. It's doing something to the bullets as it's going down the barrel. I had a friend running a 22 creedmoor with the same issue. It ended up being the barrel. Lands maybe scaring up the jacket.

 

[MLN1963]

Have you bore scoped the barrel to make sure there are no issues?

 

[longtubeman]

Have a 22-250 AI, not a 1 in 7 twist, but the case is very easy to get multiple loads for.likes all different powers, bullets, kills like a lazer!

 

[lives2hunt]

I've been blowing up 88 ELD-M from a 28"barrel 22 creed at 3200's every time I've tried to find a load. But I've ran the 80 ELD-M up to 3545fps without a failure. I think they must have a jacket issue with a batch of 88's
There's no way in my mind that bullet should be limited to 2750fps. Also know another guy who tried shooting them from a 22 creed proof barrel he couldn't keep them together anywhere above 3100fps he switched to 85.5 grain Berger's with great success. That's just my experience and 2 cents worth.

 

[DJ Fergus]

Have a 22-250 AI. 7:1 twist
Tried 35.5gr H4350 with 88gr ELDM getting3100 ft/sec and blowing up bullet
Want to back down to 2750ft/sec to meet Hornady max.
Should I stay with H4350 or possible going to a faster powder like Varget?

I have ran the 88 eld up to 3350 fps in a 22 creedmoor out to 500yds with no issues. Ran up to 3260 in another 22 creedmoor no issues. Both were 7 twist 6 groove barrels. From what I understand, in a 4 groove 7 twist the 88 elds may indeed blow up when running to 3100 & up. It was recommended to me to use a 5r or more grooves when running that fast with the 88 eld in a 7 twist so that it will be a more gentle on the bullet jacket.

 

[jgal72]

I'm running the 88 eldms at 3450 fps out of my 22 creed, 1 in 8 proof, no problems.

 

[fmuguira]

Know this is old but twist and groove are typically the culprits for blowing up long for caliber bullets. ( also long barrels have an effect too)

Basically over rpm, heat and bite on the jacket ( from groove depth) can destroy them. We shoot 88 Eldms in 26" 22-250 AI barrels at 3200-3250 fps with 8 twist 3 groove barrels and most survive. Friend has a 30" 8 twist 3 groove that's 30" barrel bench gun and it loses 1/2 the bullets shot. They re running 3350 FPS.

When Hornady recommends a 7 twist for that bullet they re trying to cover 223, 22 BR and up cases. The big volume 22 s can use an 8 twist if your elevation, etc all aligns up. Regardless you re walking a fine line when you get in this arena!

 

[VLD Pilot]

Seems like all the .224 heavies are built for the smaller case .224 cartridges. That is why the real fast twist barrels are recommended. Use a real fast twist barrel in a large case cartridge and bullet blow up is very likely. I hear about it often. I'm running an 8 twist 30" 4 groove ratchet Shilen barrel. Been running the 75/80s at 3550+ with a 22-250AI. Trying to find some 88 ELDs to see if I can get them to stabilize and stay together. Don't see why they wouldn't stay together since the 80 ELDs do great. Stabilization is the main concern.

 

[masterminks]

Have a 22-250 AI. 7:1 twist
Tried 35.5gr H4350 with 88gr ELDM getting3100 ft/sec and blowing up bullet
Want to back down to 2750ft/sec to meet Hornady max.
Should I stay with H4350 or possible going to a faster powder like Varget?

I'm shooting 42.5gn of superformance at 3375fps and shooting 1/4" MOA at 100yrds. With 88 ELD-match out of my 22-250 a.I. 1-8 twist 26" barrel.

 

[Joejack]

I have 3 22creeds they are all blowing up 85.5 Bergers if I run them over 3250 they will blow up the 5 shot every time my bartlin barrel blows them up at 3200 trying 88gr eldm at 3220 in it so far they are staying together. 26" barrels 1&7 twist

 

[Gstew1930]

Tagging in

 

[Pdvdh]

I have 3 22creeds they are all blowing up 85.5 Bergers if I run them over 3250 they will blow up the 5 shot every time my bartlin barrel blows them up at 3200 trying 88gr eldm at 3220 in it so far they are staying together. 26" barrels 1&7 twist

I think 7.5 twist is the solution for the heavies at high launch speeds.