Originally Posted By: pyscodogWas hoping ou would come along and give your thoughts Keith. I just think it would be a good upgrade to the soon to be shot out 22-250AI barrel thats on the rifle now. Can I just neck up the 22-250AI brass to 6-250AI or would I have to start from scratch and fireform new brass?
Yes, I just used a Redding long tapered expander to neck up the 22/250 brass. I put a very HEAVY taper on the inside of the case mouth, lube the inside of the neck with a Q tip and Imperial sizing wax or Lee sizing wax(better).
I also shot the barrel out of two 6/250's, and the AI version seems to be less finicky on loads + more velocity. The 6/250 AI is really 90% or more of what a 243 AI is in a smaller package and is every bit the equal the std 243 with a tad bit less powder.
It seems that new ideas are really old ideas on the 6-6x47 Lapua. If you compare the 6-6.5x47 Lapua to the 6/250 there is only a tad bit of difference. Fads come and go, the 6/250 is really a good case as is the 6x6.5x47 Lapua.
In the late 90's, there were some guys shooting high power matches with the 6/250 and they did very well, I have the article in Precision Shooting magazine tucked away somewhere.
If a few people shooting competition start shooting the 6/250 AI, it will catch on like wild fire. Many are scared of the 40* shoulder but it sure stops brass flow better than a 30* shoulder angle while giving more case capacity.
There are guys now necking up the 6.5x47 Lapua now to 7mm and shooting extremely well with it. Boggles the mind why they do not AI the case and get a few more grains of powder in it.
New powders available today(at least prior to the election) can make the 6/250 AI into a real power house, R#17 for starters.
I am sure that many are wondering why go to a 6/250 AI. Well, for many advanced reloaders and varminters, they look for the ultimate out of a case. The ability to use Lapua brass that is really tough and uniform is a real plus, and Lapua brass is well worth every penny. Also, the 22/250 case is shorter than a Creed case, which would give you more room in the mag box to chase the lands as the leade grows. Very often there are several velocity(pressure) nodes with a given cartridge. Some nodes will be lower pressure, while in a some instances, the best accuracy node may be at a point where the pressure is so high that the pockets start to open up a tad or will need full length sizing after every firing. This top end accuracy node is where the Lapua brass is a real plus where the brass is very tough and will take the pressure.
"Wildcatting" is a hobby within the shooting/reloading hobby. For some, wildcatting makes no sense at all for all of the trouble, and this is understandable.
By the way, I have never trimmed the following cases: 223 AI, 22/250 AI, 6/250 AI, 243 AI, or 6 Rem AI....NEVER!
Redding does make the dies for the 6/250 AI, so does C&H which makes one whale of a die.