6 creedmoor brass from 22-250?

[Codiekfx400]

Wanting to make some 6 creedmoor brass from ppu 22-250 brass. I was thinking of just running it through a Redding full length die load about 38 grains of 4350 behind it with a 105 gr bullet and shoot. Will this work? I know 6 creedmoor brass is plentiful but I already have the 22-250 brass and I have no 22-250 to put it in.

 

[Codiekfx400]

TTT

 

[MtnCreek]

No one's answered, so I'll say what little I know. 22-250 can be formed into 6.5 creedmoor, but OAL will be shorter (short neck) than standard creedmoor brass. I don't know if this applies to 6 creedmoor.

 

[Codiekfx400]

Thank you MtnCreek I would sure think this is a fairly common practice. I am going to try it in the next couple of weeks don't see why it won't work.

 

[MtnCreek]

I'm sure it will work, although it could cause issues if the neck is much shorter like it is in 6.5. I never loaded any because I didn't want to carbon up the throat forward of the neck, potentially causing a pinched bullet with a normal length case.

The first 22-250 case I sized to 6.5 I just lubed and ran it through a creed fl die. It ripped the expander ball off when pulling it back through. I also used an expander die in 6mm, then 6.5mm to neck up. That seemed to work pretty good. The body/shoulder did look different than creedmoor, but appeared plenty close enough for fire forming.

 

[Codiekfx400]

Got some of my 22-250 brass fire formed into 6 creed. Ran it through a fl die loaded it and shot it. Worked great except the primers came out of the case a little bit (maybe 10 thousandths). Also the brass is measuring short at 1.880". Pretty pleased with the results hopefully I don't see any bad carbon build up due to the brass being a little too short.

 

[MtnCreek]

Good deal. If you're worried about stretching the body, you could try running a 6.5 mandrel through the necks then sizing back down to 6 just enough to leave a false shoulder to keep the head snug to the bolt or a hard jam into the lands.

I'd be interested to know if the necks reach normal length and if so, how many firings it takes.

 

[Codiekfx400]

Thank you MtnCreek for the help along the way. I will let you know how many firings it takes to get to 1.910". My guess will be around 8 firings. I tried to jam the lands but the bullet I was using would not reach. The rifle I am working with is the rpr. I have quite a bit of,experience reloading 6.5 creedmoor. I must say the 6 creedmoor when I shot it was grouping really well even with the fire forming process.