Thread: 22-204 and 88 grain eld-m

20 or 22” I’m not sure I shot the 80s at 3080fps 22” and didn’t bother with the 88gn as mine was 8 twist that data’s from Greg

Download GRT mate. You can model the 22-20 and add wildcats quite easily. It's exceptionally handy as a sense check of what velocity to expect pressure as well as to give ideas for powders for strange combinations.

If you can’t find data, try using 6x47 Remington data and drop back 1/2 grain, essentially.222 mag necked up to 6mm,
Be more data for 70-75gr weights,
I have one on a cooper, Hornardy had data.

Do you already have one or are you building it?

If building, look at the 22x47lap or 22cm both are big step up in performance over the 22T and can download them if you dont need the speed to 204 speeds

There's a big thread on Snipershide about 223AI, with a lot of info for 85-90gr projectiles. Not the same cartridge, buy case capacity will be quite close.

Barrel length will be what makes the difference, a 26" barrel will likely be good for 2850fps, whereas and 18" is going to be considerably slower.

Originally Posted by 199p

Do you already have one or are you building it?

If building, look at the 22x47lap or 22cm both are big step up in performance over the 22T and can download them if you dont need the speed to 204 speeds

Yes already have it. I was keen to try out a 22 cal after reading the 223 on deer thread

Originally Posted by Beetroot

There's a big thread on Snipershide about 223AI, with a lot of info for 85-90gr projectiles. Not the same cartridge, buy case capacity will be quite close.

Barrel length will be what makes the difference, a 26" barrel will likely be good for 2850fps, whereas and 18" is going to be considerably slower.

Cool thanks. I’ll check out the snipers hide thread.

Originally Posted by Kelton

Yea it’s more different than people think to the the 222mag shoulders blown forward and steeper shoulder angle it’s closer to 5.6x50, iv got some data it might just take some finding you’ll need a 7.5 twist for starters assuming you do il dig out what I have?

Which means it has bigger capacity= the mag data will be on mild side which is where you want to start. Looks like OP is sorted.

Originally Posted by Micky Duck

Which means it has bigger capacity= the mag data will be on mild side which is where you want to start. Looks like OP is sorted.

Correct more than 223ai as well awesome little case most fun iv had with a rifle