6mm 250 imp

[gggolf]

What available ammo can I shoot to fire form the brass?

 

[KRP]

Depends on what "improvement" you're talking about and how the chamber is set up.

 

[gggolf]

Depends on what "improvement" you're talking about and how the chamber is set up.

I am thinking Ackley but can't swear to it. I will have my gunsmith check it. I was thinking 6mm CM.

 

[KRP]

You may have issue with the smaller base diameter of the 250, if the other dimensions happened to work out.

6XC or 22-250 may work. Again, depending on the chamber.

I think your best bet is to neck some brass to 6mm, adjust the neck/shoulder so it fits your chamber, then load and shoot it.

 

[Gabe22BR]

none

is it a true 250 Savaged necked down to 6mm the blown to 40 degree shoulder?
or does it have a longer neck like a 6mm international with a 40 degree shoulder?
lookslike ya gotta make your brass to fit your chamber,,,, no easy way out,,,

 

[std7mag]

Yeah, i'd neck 250 Savage to 6mm, trim to length, and chamber.
Hopefully there is some stiffness to the bolt on closing.
If not seat your bullets out to the lands to fireform.

 

[AckleymanII]

I just necked up PMC 22/250, worked like a charm. Why I sold that reamer and dies, I will never know...IDIOT!

 

[therifler]

i still have mine . 6x250 ackley i used 250 savage brass necked it up . i made my own dies then turned to hornadyfor the dies . good luck with your project .

 

[gggolf]

Thanks everyone for the info.!!!!!!

 

[Tommie]

Mine uses 22-250 necked up. I believe most are set up for that combo.

 

[rangertim]

Hunter class shooter’s did some 250 to 6 mm, I think they called it a 6 HLS, It made the case capacity rules of HBR Back in the day !

 

[prologr]

Hunter class shooter’s did some 250 to 6 mm, I think they called it a 6 HLS, It made the case capacity rules of HBR Back in the day !

I fooled with this cartridge 3 or 4 years, wound up pushing reamer in an extra .020 can load and shoot 6cm brass full charge first time. Run it through your sizing die first works good. Gives a case with more capacity than the 6cm

 

[prologr]

I fooled with this cartridge 3 or 4 years, wound up pushing reamer in an extra .020 can load and shoot 6cm brass full charge first time. Run it through your sizing die first works good. Gives a case with more capacity than the 6cm

That's,020 over a 22-250 go gauge

 

[Idaho-Lefty]

IF, your Barrel is still, "Good",..
Have your Gunsmith, set the Barrel back, a Thread and Re-Ream it to, the 6 XC ( Tubb, Version, One ) , Buy Norma or, Peterson Brass, use regular, 6XC Dies from Forster,.. EZ- Peasey, NO, "Head ache's", awesome, Accuracy !

 

[Ackman]

I am thinking Ackley but can't swear to it. I will have my gunsmith check it. I was thinking 6mm CM.

What makes you think that's what it is. Does it say so on the barrel? Or are you going by some brass that came with the gun, which makes it real easy. And you want to know the neck diameter too. For 6-250 brass I have PMC 22-250 necked up, and 250 Savage lightly neckturned and necked down. They both work beautifully. And for an Ackley version fireforming would be just blowing the shoulders out, very easy.