October 20th, 2013

22-6.5×47 vs. 22-250 Standard and Improved

In our Shooters’ Forum, there was an interesting discussion of the 6.5×47 Lapua case necked down to .22 caliber. Forum members discuss the pros and cons of a “22×47 Lapua” wildcat versus the classic 22-250 or a 22-250 AI.

Forum member SkeetLee asked: “I am considering a 22x47L or a 22-250 AI. I like the Lapua brass and I have heard some good accuracy reports from the 6.5×47 Lapua case whether it be chambered as a 6.5mm or necked down to 6mm or even 22 caliber. I don’t know too much about the 22-250 AI except that it’s pretty popular and it’s fast…. I don’t see much offered for reloading dies for the 22x47L. I know I can use a bushing die to neck size but what about full length sizing and seating dies? Does it make better sense to just go with the 22-250 AI?”

22-250 Ackley Improved

Respected Savage Gunsmith Fred Moreo, posting as “Medicineman”, offered this interesting advice: “Why not get the best of both worlds? I built a 22×47 Improved for my coyote gun. It is easy as just running the 22-250 AI reamer in .050″ short, and trimming the same amount off the dies. It is actually a little more efficient than the 22-250 AI. My best load for coyotes is a 65gr Sierra GameKing pushed by 39.4 grains of H4350 for 3750 fps. The Lapua brass will take more pressure than any 22-250 brass available, and last four times as long. The 65 Sierra GKs hit like a sledge-hammer, and were originally designed for shooting red kangaroos — they’re pretty tough from what I hear.”

22-250 Ackley ImprovedForum member Vic C. from Oklahoma has experience with the 22-250 AI, and has recently built a 22×47 Lapua. Comparing the 22-250 AI with the 22x47L, Vic tells us: “Accuracy should be very good from either caliber in custom barrels.” Vic continues: “I have two 22-250 AI barrels and a new 22X47 Lapua barrel that I’ve just started load testing. The 22X47 Lapua case capacity is slightly more than a standard 22-250 Rem and less than the 22-250 AI (fireformed). The advantage of the 22X47 L, of course, is the availability of Lapua brass. I have Remington, Winchester and Federal brass for the 22-250 AIs and prefer Remington which I’ve found to be quite good, but not up to Lapua standards of course.

Recently I’ve been shooting some reformed Norma 6XC brass in the 22-250 AI and find it to be of excellent quality. [Editor’s Note: Lapua also now makes 22-250 brass though it is currently hard to find.] Dies for the 22-250 AI are much easier to come by than for the 22X47 Lapua. For a coyote rifle, if you’re not saving the hides, I think either caliber would be a great choice. For a PD rifle I would go with the 22-250 AI because of much less work prepping the hundreds of cases needed.”

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