250 AI-Need Advice-Brass

[Prophet River]

Looking really hard a beautiful 250 Savage AI, however, I'm a big believer in Lapua brass. Has anybody formed this case from 22/250? Is there enough brass thickness in the neck to be OK once opened up?

 

[ErikT]

I have a regular. .250 Savage that I reload for, and I've formed cartridges out of .22-250 tons of times. I imagine you will have no trouble in forming them to the AI chamber. I've had no problems with neck thickness, and the brass seems to last just as long as regular .250 brass. Enjoy the rifle. I've thought about opening up one of my Savages to AI, but I'm in the middle of building a .25-308 Improved, so the Savage improved will be a little redundant.

 

['Boo]

I too have formed a lot of 22-250 brass into 250 Savage brass.
For the AI I would neck up to .25 calibre and then fire-form in the AI chamber.

BTW, I use a Sinclair expander mandrel which is the cat's ass for necking cases up.

 

[deertroy]

I've been seriously looking at that rifle as well. Here's an interesting way of doing it.

 

[240gord]

I had a 250AI,I found some 250 savage Metallverken brass. Googled it and found it's made in Sweden.Was going to fire form some but sold the rifle before I could try.I am going to build another this winter just looking for reamer.
I did try sizing 22-250 brass,worked but split a couple of cases(may have been older brass)

 

[Johnn Peterson]

Another suggestion, send an e-mail to the RCBS technical department. That was one of the sources of info I used on my question of forming brass for my 219 Donaldson Wasp. They were very informative and more than willing to help with procedure recommendations and the required equipment, if required.

 

[Prophet River]

Sure appreciate the advice guys. Might have myself a 250 AI soon.
http://store.prophetriver.com/coope...wivels-skeleton-grip-cap-neidener-butt-plate/
ordered for me, just indecisive if I will kee but I think I will induldge, one of my favorites

 

[Jefferson]

I too have formed a lot of 22-250 brass into 250 Savage brass.
For the AI I would neck up to .25 calibre and then fire-form in the AI chamber.

BTW, I use a Sinclair expander mandrel which is the cat's ass for necking cases up.

read up on these expander mandrals, it is the only proper way to go in my humble opinion Jefferson

 

[deertroy]

That's some kind of nice wood. Spectacular!!

 

[Prophet River]

That's some kind of nice wood. Spectacular!!

pics don't even come close either. one of my favorite ever in the shop...

 

[Neilm]

Clay,
I think it would be a lot easier to use 260 brass and neck down. You only need to trim about 1/10"
Neil

 

[Prophet River]

Clay,
I think it would be a lot easier to use 260 brass and neck down. You only need to trim about 1/10"
Neil

now thats an idea I hadn't thought of and can still use lapua....