22 Creedmoor Magnum (+ Peak )

[Huntnpack 2]

Starting this thread as a place for people interested. Anyone?

Let’s keep it related to 22 Creedmoor + Peak Only !!!

 

[Huntnpack 2]

I’ll start off …….. I’m interested in the possibility of
A + Peak version.
It’d be nice if & when Federal comes out with it.

 

[AZ Gator]

For my clarification, is this thread for 22 CM, or pushing the 22CM to a higher level?

I broadly categorize the 6.5CM as “standard”, 6CM as “magnum”, and 22CM as “ultra mag”.

Not that my categorizations are authoritative or even reasonable, but I would think much more powder behind a 22 would not see much benefit other than replacing brass, barrels, and powder jug more frequently.

Perhaps I’m wrong though…

 

[dårlig jeger]

I'm curious what kind of speeds you could get out of an 88 at 80k psi.

I also think a 10 twist shooting varmint bullets would be rad.

 

[HandgunHTR]

I'm curious what kind of speeds you could get out of an 88 at 80k psi.

I also think a 10 twist shooting varmint bullets would be rad.

According to GRT, using N550 as the powder, it is predicting 3380 for the 88-grain ELDM out of a 24" barrel. Based on my experience with GRT, it is a little slow on it's velocity prediction model, so I would guess that 3400 fps is possible.

 

[Huntnpack 2]

I’m considering in the short term a couple possibilities for a 22 CM + Peak

1) neck down 6.5 CM + Peak

2) if 6 CM + Peak comes available next,
neck that down

3) wait for 22 CM + Peak

Right now I’m leaning option 1.

 

[Ferrulewax]

How similar is this to the .22 UM that didn’t seem to do very well? It’ll be interesting to see if this is the magic ultra-fast 223 cartridge

 

[Huntnpack 2]

I found a source for dies & bushings, so I’ll start there.

 

[HandgunHTR]

I’m considering in the short term a couple possibilities for a 22 CM + Peak

1) neck down 6.5 CM + Peak

2) if 6 CM + Peak comes available next,
neck that down

3) wait for 22 CM + Peak

Right now I’m leaning option 1.

I found a source for dies & bushings, so I’ll start there.

I think that the problem that you are going to run into is at the shoulder/neck junction. When stepping down 6.5 Creed to 22 Creed in brass cases (when we still had to do that), it required neck turning, specifically to get rid of the bulge that is created at the junction. If you have a mini lathe type neck turner, you may be able to do it, but it will depend on the hardness of your cutter and with the knowledge that you will be removing the coating.

 

[naked wombats]

Are they carbide?

 

[Huntnpack 2]

Are they carbide?

I will have to check. I assume so as they are +peak bushing dies.