250 Savage

[bob347]

O.K I know the 250 Savage was originally called the 250-3000, But is the 250-3000 Ackly improved the same cartridge as the savage? I can't seem to find any schematics on the Ackly.

 

[todbartell]

the 250-3000 AI aka 250 Ackley is the Ackley improved version of the standard cartridge

case taper blown out to increase case capacity

​

 

[A-zone]

O.K I know the 250 Savage was originally called the 250-3000, But is the 250-3000 Ackly improved the same cartridge as the savage? I can't seem to find any schematics on the Ackly.

The .250 Ackley Improved (AI) has a 40 degree shoulder, while the parent cartridge is (IIRC) 28 degrees. To form the AI chamber, the 250-3000 chamber is reamed, leaving an almost straight-walled appearance. The AI brass is fire-formed and the resulting cartridge looks very similar to the "short magnum" cartridges in its profile.

The case on the left is a .250 AI, the one on the right is a .22-250, which retains the original .250-3000 profile.

Case capacity is increased by about 15% and you can really get a useful (10%-15%) increase in velocity as a result.

 

[bob347]

To the guys out west Todbartell & A-Zone

I have the 10th edition of cartidges of the world but it doesn't show any pictures.
The schematics and pictures sent are super. THX Bob

 

[bronco_mudder]

To the guys out west Todbartell & A-Zone

I have the 10th edition of cartidges of the world but it doesn't show any pictures.
The schematics and pictures sent are super. THX Bob

Another good book for getting this kind of info is the Handloader's Manual of Cartridge Conversions.

 

[bob347]

Thanks Bronco . Would you know who the editer or writer is of this handloader manual. THX Bob

 

[bob347]

Thanks Bronco . Would you know who the editer or writer is of this handloader manual. THX Bob

By the way!!! Good picture of Bubbles

 

[bronco_mudder]

It's by John J. Donnelly, published by Stoeger Publishing Company