25 CRD load data

[Beruisis]

I'm loading 85 - 110 gr bullets in a 10 twist....wouldn't the load data from the 250 Ackley Improved be just about right on the money?

 

[Kurz]

Maybe if we knew what the cartridge was we could lend a hand. I try to keep up with the major new cartridges but now every gunsmith wants his own wildcat or so it seems.

Post a picture of the case and loaded cartridge, tell us the case capacity with H2O up to the top of the neck, the case OAL and the cartridge OAL.

 

[Preacher]

What exactly is a 25 CRD, inquiring minds need to know !!!!!!!

 

[Evan]

I'm assuming that it's a 25 Creedmoor. If no one has load data, you could try starting at the bottom loads available for a 6 Creedmoor in the same weight and work up.

 

[Beruisis]

Yes it is 25 creedmoor, uses 250 savage cases fireformed or 6mm creedmoor cases resized neck.

 

[Zero333]

25 creedmoor can be loaded to slightly higher pressures than the 250ai.
So you can use middle of the road 250ai data as a starting point.

I should rephrase what I wrote...

250ai data doesn't reach as high pressure as creedmoor data.

 

[Kurz]

The only bullet I'm working with currently in the 25 Creedmoor is the 131 Blackjack. It requires a faster twist rate than the usual 1:10" found in most rifles.

http://forum.accurateshooter.com/threads/25-creedmoor-131-blackjacks.3985430/

 

[Beruisis]

25 creedmoor can be loaded to slightly higher pressures than the 250ai.
So you can use middle of the road 250ai data as a starting point.

I should rephrase what I wrote...

250ai data doesn't reach as high pressure as creedmoor data.

Thanks, that's what I needed to know.
Beruisis

 

[Kurz]

The 250 Savage and the Ackley version of that cartridge are held to a SAAMI spec chamber pressure of 52,990 PSI. This is to prevent possible damage to a rifle and shooter when loaded in the lower pressure rifles such as the original Savage 99. It's no different than the .45-70 loads for weaker or stronger actions or the .30-40 Krag Jorgensen loads for weaker actions.

 

[chrisj]

I'm loading 85 - 110 gr bullets in a 10 twist....wouldn't the load data from the 250 Ackley Improved be just about right on the money?

Yes except careful if you use cr brass with small primer

 

[Beruisis]

Yes except careful if you use cr brass with small primer

Nope using fireformed Hornady brass with LP pockets.

 

[farmerjohn]

Just been following the thread and was wondering if the case volume is close between the 257AI and the 6CM ? I assume it must be, other wise, the Ackley data wouldn't work...
Thanks John

 

[farmerjohn]

Never mind I reread the thread and saw you were using the 250 Savage not the 257 Rob AI. Had a long day, kinda slow....
John