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22 Creedmoor with 75s and 80s

RAG

Can't shoot due to a recent surgery...thus spending my time here...and planning my next build! Gonna be heavy bench gun for shooting colony critters...planning on switch barrel, 243AI/22 CM. The 22 Creedmoor will likely be 1-8" twist, for the windy days and 243AI will be fast twist to hit 'em hard in close.

What kind of velocity are you guys getting with the 75s or 80s out of the Creedmoor? (or 22-250AI, as capacity should be the same) I'm leaning/aiming to push the 80 ELD-M, with G1 BC over .5 according to Kestrel/AB. With a long tube, and "benchrest pressures", I'm hoping for 3,500fps.

FWIW, I had originally keyed in on the 22/243AI, with reports of this pushing the 80 ELD-M 3,600-3,650fps. But also saw reports of 700-800rnd barrel life, which makes sense. So I'm hoping the 22 Creedmoor can at least get me 50% more, maybe 1,100-1,200 at the loss of just 100fps or so.

Experience with barrel life..., anyone?
 
If I were building a 22 Creedmoor the first thing I would do is try and find some Alpha Munitions 22 Creedmoor brass or at the least get on someones pre-buy list because that stuff is tough as hell. Greg w/Primal Rights recently did a torture test of that brass and couldn't kill it.

I don't think 3500 with 80's in a 22CM using a 26 inch tube will be to difficult with the right powders. H4350 and RL16 are often the "go to" powders for a lot of people and RL26 is no slouch either.

If the smith that built my 224 Terminator didn't offer formed Lapua brass and Redding dies I would have had him build me a 22CM instead. The 22CM is the easy button if you are wanting a hot rod 22 cal build.
 
RAG said:
Can't shoot due to a recent surgery...thus spending my time here...and planning my next build! Gonna be heavy bench gun for shooting colony critters...planning on switch barrel, 243AI/22 CM. The 22 Creedmoor will likely be 1-8" twist, for the windy days and 243AI will be fast twist to hit 'em hard in close.

What kind of velocity are you guys getting with the 75s or 80s out of the Creedmoor? (or 22-250AI, as capacity should be the same) I'm leaning/aiming to push the 80 ELD-M, with G1 BC over .5 according to Kestrel/AB. With a long tube, and "benchrest pressures", I'm hoping for 3,500fps.

FWIW, I had originally keyed in on the 22/243AI, with reports of this pushing the 80 ELD-M 3,600-3,650fps. But also saw reports of 700-800rnd barrel life, which makes sense. So I'm hoping the 22 Creedmoor can at least get me 50% more, maybe 1,100-1,200 at the loss of just 100fps or so.

Experience with barrel life..., anyone?
Click to expand...
I haven't shot anything but 88 elds in 22 Creedmoor. I got them to 3250fps with h4350 & 3360 with rl26 in a 26" barrel. Both loads shot very good.
 
B23 said:
If I were building a 22 Creedmoor the first thing I would do is try and find some Alpha Munitions 22 Creedmoor brass or at the least get on someones pre-buy list because that stuff is tough as hell. Greg w/Primal Rights recently did a torture test of that brass and couldn't kill it.

I don't think 3500 with 80's in a 22CM using a 26 inch tube will be to difficult with the right powders. H4350 and RL16 are often the "go to" powders for a lot of people and RL26 is no slouch either.

If the smith that built my 224 Terminator didn't offer formed Lapua brass and Redding dies I would have had him build me a 22CM instead. The 22CM is the easy button if you are wanting a hot rod 22 cal build.
Click to expand...
Interesting! Yeah, that was, and maybe still is my plan...22 Creedmoor brass. In another thread, someone was not able to achieve desired velocity with Alpha and Peterson because they had less capacity than the Starline he is using. Maybe thats the price to pay for tougher brass. I'll have to monitor a little more.

As for timing, it's going to take 10-11 months to assemble parts and have rifle built anyhow...plenty of time to get some brass. I hope.
 
ACF said:
I'm getting 3500 FPS in my 22 CM using Peterson brass. Load is 41-42 gr., RL-22, 210M, 77GR. Sierra TMK.
Barrell length about 29 in. Working on 11 firings with this brass, pockets still tight. Getting close to 1100 rds. through this barrel, still shoots pretty good.

Chris
Click to expand...
Just what I like to hear. I'd either neck down Lapua or go Peterson brass. With the Peterson, what's neck diameter is the loaded brass (unturned) coming to? Thanks!
 
RAG said:
Just what I like to hear. I'd either neck down Lapua or go Peterson brass. With the Peterson, what's neck diameter is the loaded brass (unturned) coming to? Thanks!
Click to expand...
Can't help you there, I used 6MM CM brass and necked it down and turned the necks. At that time 22 CM brass wasn't available

Chris.
 
22 Creedmoor and good brass & Bartlein Mod BB barrel steel sounds like a winning combination.

I have been trying to lean towards a 22-250 AI because I am already set up for same...tough decision but I have a couple months time till I can shoot.... anything that recoils much.
 
I will always have a 22-250AI. I'm not standing on my brass at all, running a poly 3 groove 1-8" twist barrel finished at 26". 41.5 gr RL23 gives me 3370fps, verified to 780 yards. It is too easy to shoot, especially for a savage home build. If it shoots over half moa it's me, not the gun.
 
Last edited:
thatguyshm said:
I will always have a 22-250AI. I'm not standing on my brass at all, running a poly 3 groove 1-8" twist barrel finished at 26". 41.5 gr RL23 gives me 3370fps, verified to 780 yards. It is too easy to shoot, especially for a savage home build. If it shoots over half moa it's me, not the gun.
Click to expand...
Which bullet?
 
I posted my data in the "22 Creedmoor load data" topic. Only thing I didn't provide is I'm using necked down Nosler 6CM brass.
 
My 22 CM has a 22 inch barrel for running suppressed and handy.
I Used 22-250 LP Lapua brass I had on hand and fire formed seems to work OK.
77 Nosler custom comp @ 3265 FPS 1/2 moa.
 
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