22 Creedmoor and 88gr ELD-M Data

[javman]

Big Stick on the Fire forums has posted some info on 22CR but it'd be like pulling teeth to get a straight answer from him. He's gotten good results with the 88s.

 

[highdrum]

I've had a interesting go with my 22 creedmoor and the 88gr Hornady eldm. I used RL26 almost exclusively and found it to be a little bit touchy. The powder seemed to build up pressure for no apparent reason. I had a great .25 moa load at 41 gr but after about 50rds the velocity jumped 100fps and the bolt started getting sticky and I had to drop the load a full grain. It kept doing that to me and I stopped shooting it because of that. I did try h4350 in a ladder test and it seemed to have promising results. I don't trust RL26 anymore because of this. Others have experienced the same thing saying it builds up a carbon ring in the barrel. I can't confirm that, but it was continually going up in pressure.

Sounds like a carbon ring.

 

[del2les]

You can use 22/250 AI data and start with the typical 10% below max and work up. H4350, H4831SC, 4831, etc have worked well for years for me, but the past few years, I switched to 7828SSC for heavy 80-90 loads. I found I could safely increase velocity from my 26 inch barrels by another 100fps or so. YMMV

The heavies make nice deer/antelope takers, and the 62gr TBBC and 75gr GD bullets have worked spectacular on deer at shorter distances.

 

[CrimsonSplash]

great data. thanks

 

[waspocrew]

RL-23 and the 88 ELDM have given me great results from my 22-250 AI.

 

[Fotis]

40.5 gr H 4350. 3250 fps. I wonder how they would do against antelope

 

[highdrum]

40.5 gr H 4350. 3250 fps. I wonder how they would do against antelope

They would do quite well I'm sure. I know of a guy in Oklahoma who's shot many big white tail with 77tmk at 3500fps, devastating results.

 

[waspocrew]

Still working on burning out my 22-250 AI barrel before spinning on my 22 Creed prefit. The 88 ELDM continues to impress. It's scooting along comfortably at 3150 out of my 22" 1:8 Xcaliber barrel. 40.3 gr of RL-23.

This was a 3 shot group at 340 yards a couple weeks back while out in WY:

Also shot this coyote at 600 yards:

Mule deer buck the next morning at 315 yards:

Im sure I'll be able to push it a little harder with the 22 Creed but for now, it's working great. May try RL-26 to see how it works with the 88s as well. These hotrod 22s are a lot of fun!